Entries |
Document | Title | Date |
20080197077 | Low pressure drinking water purifier - An inexpensive device for removing microorganisms from drinking water includes an Ultrafiltration membrane filter equipped with a pressure regulating mechanism to supply purified water to a suitable low-pressure reservoir equipped with a bi-directional hydrophobic membrane vent filter having a 0.01-0.05-micron pore size. The purified water may be supplied to the storage reservoir at a static pressure in the range of 1 to 8 pounds per square inch. | 08-21-2008 |
20080245735 | Ceramic Flexible Membrane Providing Improved Adhesion to the Support Fleece - The present invention relates to flexible ceramic membranes which, depending on embodiment, are useful as separators for batteries, especially lithium batteries, and also a process for their production. | 10-09-2008 |
20080245736 | Crosslinked cellulosic nanofiltration membranes - The present invention relates to a nanofilter formed by using a porous ultrafiltration membrane as a precursor, and carefully controlling reaction conditions so as to maintain sufficient hydrophilic nature of the membrane while causing the pore structure to close to a nanofilter range (less than 400 Daltons). This produces a solvent stable cellulose nanofiltration membrane capable of operating at satisfactory flux in aqueous solutions, and being low binding to organic biomaterials. | 10-09-2008 |
20080245737 | METHOD AND SYSTEM FOR PROVIDING ULTRAPURE WATER - A method and system of providing ultrapure water for semiconductor fabrication operations is provided. The ultrapure water is treated by utilizing a free radical scavenging system and a particulate removal system. The free radical scavenging system can utilize actinic radiation with a free radical precursor compound, such as ammonium persulfate. The particulate removal system can comprise one or more ultrafiltration apparatus. The ultrapure water may be further treated by utilizing ion exchange media and degasification apparatus. A control system can be utilized in feedforward or feedback mode to regulate addition of the precursor compound and the actinic radiation source, and to maintain a temperature of the ultrapure water product. | 10-09-2008 |
20080245738 | METHOD AND SYSTEM FOR PROVIDING ULTRAPURE WATER - A method and system of providing ultrapure water for semiconductor fabrication operations is provided. The ultrapure water is treated by utilizing a free radical scavenging system and a particulate removal system. The free radical scavenging system can utilize actinic radiation with a free radical precursor compound, such as ammonium persulfate. The particulate removal system can comprise one or more ultrafiltration apparatus. The ultrapure water may be further treated by utilizing ion exchange media and degasification apparatus. A control system can be utilized in feedforward or feedback mode to regulate addition of the precursor compound and the actinic radiation source, and to maintain a temperature of the ultrapure water product. | 10-09-2008 |
20080277343 | LIQUID HANDLING FOR FILTRATION AND PREPARATIVE CHROMATOGRPHY - A method and system are provided for high-precision separation of pharmaceutical or biotechnology liquids. The separation can be in accordance with direct flow filtration, tangential flow filtration or preparative chromatography. Movement of the pharmaceutical or biotechnology liquid within a flow path is controlled according to a selected pattern. Selected patterns include automatically and progressively increasing the flow rate within the unit, automatically and progressively increasing the pressure within the unit or initially proceeding according to a relatively high constant flow rate and switching to a relatively high constant pressure at a time when a given parameter is attained. | 11-13-2008 |
20080290031 | Spacer for Filter Modules - In order to provide a spacer for filter modules which may be used not only for plate and frame filter modules, but also for spiral wound-type filter modules and which allows high packing densities while providing optimized cleanability, a spacer for filter modules is proposed to be disposed between two layers of a filter medium, said spacer comprising an essentially flat structured sheet material having upper and lower projections on the upper and lower surfaces thereof, respectively, said upper and lower projections defining an upper and lower bearing face for the layers of filter medium, wherein said projections rise from said upper and lower surfaces with wall portions and terminate in top portions, said upper and lower projections being spaced from each other in a direction parallel to the surface of the sheet material. | 11-27-2008 |
20080302724 | METHOD AND APPARATUS FOR REMOVING IMPURITIES IN REJECTS FROM SEQUENTIAL FILTERS USING SEPARATE TREATMENT UNITS - The disclosed method and apparatus involves the use of sequential filters for the purification of liquid. The sequential filters may each produce rejects that can be processed separately in their respective treatment apparatus, which can be fine-tuned to the specific reject that it treats. Alternatively, the first reject may be treated while the second reject may not be treated. The rejects (whether treated or not) may be combined into a combined flow and then be recycled in the sequential filters. | 12-11-2008 |
20090014387 | HYDRAULICALLY INTEGRATED SOLIDS/LIQUID SEPARATION SYSTEM AND METHOD FOR WASTEWATER TREATMENT - A system and method for treating wastewater includes a treatment container for receiving and treating wastewater and a mixing/aeration system disposed in the treatment container. Wastewater is pumped under pressure from the treatment container through a solids/liquid separation system, preferably comprising multiple parallel membrane bioreactors, to separate the solids and liquids in the wastewater. Liquid retentate from the solids/liquid separation system is cycled back to the treatment container via the mixing/aeration system. The closed-loop system and method for solids/liquid separation and aeration/mixing provides for reduced equipment requirements and energy usage during operation. | 01-15-2009 |
20090026139 | SUBMERGED CROSS-FLOW FILTRATION - A membrane filtration module ( | 01-29-2009 |
20090026140 | Floating Porous Hollow Fiber Membrane Bundle - The invention discloses a kind of porous membrane filtration component for treating water, specifically it discloses a kind of suspending porous hollow fiber membrane bundle for treating highly turbid waste water. The component includes some porous hollow fiber membrane yarns and casting heads arranged at both ends of respective yarns, wherein the connections between the said casting heads and membrane filtration module are flexible connections, at least one end of the flexible connection the cast header is connected with a hollow tube or cord, and the membrane bundle hangs on the said membrane filtration module, suspending freely. The invention provides a suspending porous hollow membrane bundle that can effectively remove contaminants adhered to the surface of the membrane yarns, makes its membrane yarns difficult to rupture, has a longer service life, and produces water with steady quality. It solves the technical problems in the present hollow fiber filtration component which includes membrane yarns that are entangled with each other and easily ruptured, thus leading to a lower quality of the product water. | 01-29-2009 |
20090032470 | Porous PTFE Materials and Articles Produced Therefrom - Novel porous PTFE membranes are described possessing a unique combination of high strength, low flow resistance, and small pore size. Additionally, unique constructions with superior filtration and venting properties incorporating porous PTFE membranes are described. | 02-05-2009 |
20090032471 | Innovative treatment technologies for reclaimed water - Innovative methods and systems for the removal and destruction of contaminants present in reclaimed or other waste water are described. | 02-05-2009 |
20090050564 | CROSS-FLOW FILTRATION METHOD AND CROSS-FLOW FILTRATION DEVICE - A method of cross-flow filtration using a membrane filter has a feeding a fluid to be filtered across a membrane surface of a porous alumina membrane filter serving as the membrane filter so that the fluid flows parallel to the membrane surface to separate material to be filtered with the porous alumina membrane filter. The porous alumina membrane filter is made of an aluminum anodized film and includes micropores having a degree of ordering as defined by formula (1): | 02-26-2009 |
20090057225 | Filtration Membrane - The invention is directed to a ultrafiltration membrane that is capable for the retention of endotoxines and cytokine inducing substances (CIS) including bacterial DNA and/or DNA fragments from fluid and/or liquid media. The invention is further directed to a method of manufacturing such ultrafiltration membranes in a high quality and in an effective and time saving procedure, and to the use of such membranes for the retention of substances from fluids or liquids. The ultrafiltration membrane of the invention consists of a polymer blend comprising at least one hydrophobic polymer containing sulfur in its back bone, at least one hydrophilic, uncharged homo-polymer of polyvinylpyrrolidone and at least one polymer containing cationic charges. The method of manufacturing such a ultrafiltration membrane comprises dissolving at least one hydrophobic polymer containing sulfur in its back bone and at least one hydrophilic, uncharged polyvinylpyrrolidone and at least one polymer containing cationic charges in at least one solvent to form a polymer solution, subjecting the formed polymer solution to a diffusion-induced phase separation to prepare a ultrafiltration membrane, washing and subsequently drying of the ultrafiltration membrane. | 03-05-2009 |
20090071903 | Composite Semipermeable Membranes, Methods for Production Thereof and Uses Thereof - There is provided a composite semipermeable membrane that shows a high salt removal ratio and high performance in rejecting boron that is not dissociated in the neutral region. The composite semipermeable membrane is produced by a process that includes forming a separating functional polyamide layer on a porous substrate film, while using an organic solvent solution containing a specific cyclic aliphatic compound or a specific aromatic compound such that a polyamide molecule that forms the separating functional polyamide layer has a partial structure composed of “a cyclic aliphatic group or an aromatic group having at least two specific substituents, at least one of which contains a heteroatom bond and a carbonyl group at the β or γ position”. | 03-19-2009 |
20090071904 | Membrane cover having a protective layer to prevent deterioration of UV stabilizers therein - The membrane structure according to the present invention has a top layer containing three plies. The top ply has UV stabilizers embedded therein; the bottom ply has stretch-resistant elements embedded therein; and the middle ply contains a co-extruded polyvinylidene chloride barrier film for example, for protecting the top ply against bio-gas infiltrations therein. In another aspect, the top and bottom plies containing polyethylene for protecting the middle ply from the weather and from corrosive environments under the membrane cover. In yet another aspect, the membrane structure has two foam layers affixed to the bottom ply. Each foam layer is made of juxtaposed strips of semi-rigid, closed-cell, polyethylene foam; wherein each strip in one foam layer is laid astride the adjoining edges of a pair of strips in the other foam layer. The strips of foam are bonded together and to the undersurface of the bottom ply by strips of fused polyethylene. | 03-19-2009 |
20090095680 | Membrane Treatment Method and Membrane Treatment Apparatus Using Membrane Module - [Problem] To provide a membrane treatment method and a membrane treatment apparatus using a membrane module, which are capable of reducing fouling using a simple installation, without increasing costs. | 04-16-2009 |
20090101578 | Process for enhanced total organic carbon removal while maintaining optimum membrane filter performance - One embodiment of a method to system for enhancing TOC removal while maintaining membrane filter performance is the implementation of a dual pH control system. This embodiment will enhance the ability to maximize TOC removal while maintaining optimum membrane filter performance. By adjusting pH, dosing a chemical coagulant and incorporating liquid-solids separation, a considerably higher degree of TOC removal is possible. By adjusting pH again after liquid-solids separation this embodiment can drastically increase the efficiency of the membrane microfiltration/ultrafiltration system. | 04-23-2009 |
20090101579 | Hollow Fiber Membrane Module, Hollow Fiber Membrane Module Unit, Membrane Filtration Device Using the Same, and Method of Operating the Same - A hollow fiber membrane module using a sheet-form hollow fiber membrane having excellent cleaning properties in which the pressure resistance of a hollow fiber membrane anchor section does not deteriorate, even when the membrane area increases; a hollow fiber membrane module unit using the module; a membrane filtration device using the unit; and an operation method therefor are provided. The hollow fiber membrane module comprises sheet-form hollow fiber membranes and an anchoring member which anchors the sheet-form hollow fiber membranes in a roughly parallel manner while maintaining in an open state at least one end portion of the sheet-form hollow fiber membranes. The shape of an end face of a side of the anchoring member from which the hollow fiber membranes are exposed is roughly rectangular, and the shape of an end face of a side of the anchoring member toward which the hollow fiber membranes open is roughly circular. | 04-23-2009 |
20090127197 | Polymer Functionalized Molecular Sieve/Polymer Mixed Matrix Membranes - The present invention discloses polymer functionalized molecular sieve/polymer mixed matrix membranes (MMMs) with either no macrovoids or voids of less than several Angstroms at the interface of the polymer matrix and the molecular sieves by incorporating polymer functionalized molecular sieves into a continuous polymer matrix. The MMMs exhibit significantly enhanced selectivity and/or permeability over the polymer membranes made from the corresponding continuous polymer matrices for separations. The MMMs are suitable for a variety of liquid, gas, and vapor separations such as deep desulfurization of gasoline and diesel fuels, ethanol/water separations, pervaporation dehydration of aqueous/organic mixtures, CO | 05-21-2009 |
20090127198 | Fluid filter system - An endcap including a first plate member including a radial inner portion, a radial outer portion, and defining a longitudinal axis. The endcap also includes a flange disposed between the radial inner and outer portions of the first plate member and projecting axially along the longitudinal axis in a first direction. The endcap also includes a first seal member disposed adjacent the flange. The first seal includes a first portion thereof engaged with an axial facing surface of the first plate member and a second portion thereof engaged with a radially facing surface of the flange. The endcap further includes a second plate member disposed radially outward of the radial outer portion and a second seal member disposed adjacent the second plate member including at least a portion thereof axially spaced from the axially facing surface of the first plate member in a second direction along the longitudinal axis opposite the first direction. | 05-21-2009 |
20090127199 | METHOD AND DEVICE FOR FLUORIDE REMOVAL FROM DRINKING WATER - A water filtration device and method in which water is pumped through a chamber containing iron oxide particles or material, which allows removal of ionic contaminants, including fluoride. Water is then pumped through a plurality of ultrafilration tubes. The water enters the sides of the tubes into the tube interior and flows out of the open ends of the tubes. The sides and the ends of the tubes are separated by a water impermeable barrier. | 05-21-2009 |
20090173693 | LYOTROPIC LIQUID CRYSTAL MEMBRANES BASED ON CROSS-LINKED TYPE I BICONTINUOUS CUBIC PHASES - The invention provides composite nanofiltration membranes with a lyotropic liquid crystal (LLC) polymer composition embedded in or forming a layer on a porous support. The LLC membranes are prepared from LLC monomers which form a bicontinuous cubic (Q | 07-09-2009 |
20090173694 | ISOPOROUS MEMBRANE AND METHOD OF PRODUCTION THEREOF - A membrane is produced by dissolving one or more polymers, at least one of which is a block copolymer, in a liquid which includes a solvent, to produce a casting solution. The casting solution is formed into film, and the film is immersed into a precipitation bath which contains at least one non-solvent for the block copolymer so that the film forms a membrane. The membrane is used for filtering a fluid that contains colloidal particles or proteins, and/or for ultrafiltration or nanofiltration, by flowing the fluid through the membrane. | 07-09-2009 |
20090200237 | ENERGY SAVING SPIRAL ELEMENT - A filter media, in particular a separation module, characterized by a flow control strip ( | 08-13-2009 |
20090218284 | METHOD OF STARTING UP A FILTERATION PLANT DESIGNED TO BE ABLE TO START UP CORRESPONDINGLY - There is described a method for the starting up of a filtration plant for the filtration of a process liquid, after cleaning of the filtration plant, and a filtration plant which is arranged to be able to started up in accordance with this method, where a secondary liquid supply unit connected to the post-treatment equipment during the starting up of the plant provides a flow of e.g. sterilised water to the post-treatment equipment, so that this can be held in a condition in which it is ready for operation, where thereafter, the process liquid is led to the filtration equipment, and the flow of liquid from the secondary liquid supply unit to the post-treatment equipment is shut off when a flow of filtered process liquid is obtained, and which thereafter replaces the liquid from the secondary liquid supply unit. | 09-03-2009 |
20090218285 | CONTROLS OF A FILTRATION SYSTEM - A control device for a filtration unit for filtering a fluid, the control device comprising an integrity test unit for performing an integrity test for checking the functional integrity of the filtration unit, and a reaction unit for determining a reaction based on a result of the integrity test. | 09-03-2009 |
20090242484 | ENVIRONMENTALLY FRIENDLY HYBRID MICROBIOLOGICAL CONTROL TECHNOLOGIES FOR COOLING TOWERS - This is a method that is an environmentally friendly hybrid microbiological control compromising a physical method through fine filtration, which removes nutrients, bacteria and suspended solids from open recirculating cooling systems. The method for microbiological control in cooling systems wherein a recirculating fluid containing an oxidising or a non-oxidising biocide or a mixture of an oxidising and a non-oxidising biocide and is passed through a fine filtration system resulting in reduced microbiological matter, suspended solids and nutrients. | 10-01-2009 |
20090261040 | METHOD AND SYSTEM FOR TREATING AN AQUEOUS STREAM IN THE PRODUCTION OF HYDROCARBON - A method and system for treating an aqueous stream in the production of hydrocarbon are provided. An osmotic operation is performed between the stream of produced water and a stream of draw fluid to transfer water from the produced water to the draw fluid, thereby diluting the draw fluid to form a stream of diluted draw fluid and concentrating the produced water to form a stream of concentrated produced water. The concentration of the produced water can facilitate the subsequent removal of contaminants therefrom, and, in some cases, the diluted draw fluid can be re-used, e.g., for injection into the well of the hydrocarbon production operation or as a fertilizing fluid. | 10-22-2009 |
20090277837 | Fluoropolymer Coated Membranes - The present invention discloses fluoropolymer coated membranes and methods for making and using these membranes. The fluoropolymer coated membranes described in the current invention are prepared by coating a porous asymmetric membrane layer with a thin layer of fluoropolymer coating. The porous asymmetric membrane layer comprises an asymmetric cellulosic membrane, an asymmetric polymer membrane, or an asymmetric molecular sieve/polymer mixed matrix membrane with a low selectivity and high permeance. The fluoropolymer coating improves the selectivity of the porous asymmetric membrane layer and maintains the membrane performance with time. The fluoropolymer coated membranes are suitable for a variety of liquid, gas, and vapor separations such as desalination of water by reverse osmosis, non-aqueous liquid separation such as deep desulfurization of gasoline and diesel fuels, ethanol/water separations, pervaporation dehydration of aqueous/organic mixtures, CO | 11-12-2009 |
20090314715 | Method of dewatering solids laden liquids utilizing a reusable filter element - A method of dewatering a solids laden waste stream, whereby the slurry is pumped into a vertical filter retaining structure and the liquid is allowed to flow out through the pores of the filtration element while retaining the solids within the structure. After the solids have dewatered, doors or gates located at the bottom of the structure are opened and the solids drop out the bottom by gravity. The structure is elevated to allow a transport vehicle to be placed under the doors prior to dropping out the solids. One embodiment utilizes an open bottom, closed top filter bag that is closed off by the doors or sliding gates located at the bottom of the structure. Another embodiment disclosed would use rigid filter plates to retain the solids and drop out the accumulated solids by opening sliding gates at the bottom of the structure. The filter bag or plates is accessible from the side to allow either manual or automatic pressure washing of the filtration elements or filter bag after each dewatering cycle. | 12-24-2009 |
20100000945 | Filtering Apparatus and Method of Use - A filtering apparatus comprises a microporous membrane and an actuator. The membrane is positioned to traverse across the hollow interior of a conduit used for the transport of molecules in bulk. In one example, the pores of the membrane comprise a plurality of open-ended carbon nanotubes. The actuator comprises a transducing material such as a polyvinyledene fluoride film that is operatively positioned in contact with the membrane and is capable of propagating acoustic vibration onto the membrane at a particular frequency so as to hasten the movement of the molecules through the membrane. Similarly, a method of filtering water comprises the steps of: (a) sifting molecules of water through the membrane, the pores of the membrane comprising a plurality of carbon nanotubes; and (b) propagating acoustic vibration onto the microporous membrane at a libration frequency of ice so as to hasten movement of the water molecules within the carbon nanotubes. | 01-07-2010 |
20100006503 | MEMBRANE STRUCTURES AND THEIR PRODUCTION AND USE - A method is provided for forming zeolite membranes in internal surfaces of a plurality of conduits in a cylindrical porous ceramic monolith, the conduits extending from one end of the monolith to the other, said method including a step of: flowing a pre-treatment liquid including a zeolite initiating agent into the conduits; causing at least part of a carrier liquid component of the treatment liquid to flow from the conduits into and through the body of the monolith to the exterior; and causing zeolite crystals to be deposited in the porous internal surfaces of the conduits as the carrier liquid component flows into the monolith. The substrates may be pre-conditioned for membrane formation by a method which comprises: (a) forming an aqueous suspension of zeolite particles; and (b) passing the suspension alternately (i) through the tubular conduits and (ii) out through the walls of the tubular conduits so as to deposit a layer of zeolite particles on the inner surfaces of the tubular conduits; wherein the porous substrates are treated in chambers arranged e.g in annularly and the suspension is supplied to the chambers from a first common manifold via respective delivery tubes and is recovered via recovery tubes leading to a second common manifold, the first and second manifolds and the supply and recovery tubes being configured so that the branch path to and from each chamber is substantially the same. After pre-conditioning, formation of membranes may be by depositing or crystallizing a zeolite membrane on the zeolite particles by gel crystallization. A membrane structure is also provided which comprises a tubular porous ceramic monolith having tubular conduits each having an internal diameter of (5) to (9) mm formed within the monolith with a zeolite membrane formed on the internal surface of each of the conduits, wherein either there are four conduits and the monolith is longer than 600 mm or there are five or more conduits. The invention also provides methods for removal of water from organic liquids and methods for the purification of water using the above membrane structures e.g. to remove residual water from ethanol or butanol or to produce high purity water. | 01-14-2010 |
20100012589 | Unit and method for preparing a sample for the microbiological analysis of a liquid - The unit comprises a filter membrane ( | 01-21-2010 |
20100038316 | POLY(TETRAFLUOROETHYLENE) ZEOLITE COMPOSITE AND METHODS - The present application thus provides a composite composition comprising PTFE and zeolite. According to another aspect, the present application provides a method for making a composite article comprising bonding zeolite to PTFE. According to still yet another aspect of the present application, a method for separating components of the mixture comprising contacting the mixture with a composite composition comprising PTFE and zeolite is disclosed. | 02-18-2010 |
20100038317 | HEMOFILTRATION SYSTEM AND METHOD BASED ON MONITORED PATIENT PARAMETERS, SUPERVISORY CONTROL OF HEMOFILTRATION, AND ADAPTIVE CONTROL OF PUMPS FOR HEMOFILTRATION - A multipurpose hemofiltration system and method are disclosed for the removal of fluid and/or soluble waste from the blood of a patient. The system continuously monitors the flow rates of drained fluid, blood, and infusate. When necessary, the pumping rates of the infusate, drained fluid and blood are adjusted to remove a preselected amount of fluid from the blood in a preselected time period. A supervisory controller can monitor patient parameters, such as heart rate and blood pressure, and adjust the pumping rates accordingly. The supervisory controller uses fuzzy logic to make expert decisions, based upon a set of supervisory rules, to control each pumping rate to achieve a desired flow rate and to respond to fault conditions. An adaptive controller corrects temporal variations in the flow rate based upon an adaptive law and a control law. | 02-18-2010 |
20100065498 | Novel Coated Membranes and Other Articles - The present invention provides porous media or membranes having a surface coating that includes a cross-linked terpolymer which has a superior combination of properties, including heat stable biomolecule resistant adsorptive properties, resistance to strong alkaline solutions, and low levels of extractable matter. In some preferred embodiments, the porous media is a porous membrane. | 03-18-2010 |
20100078386 | Separation Membrane made from Blends of Polyimides with Polyimidazoles - A membrane for fluid separation made of a blend of at least a polyimide polymer and a polyimidazole polymer. | 04-01-2010 |
20100133190 | METHOD TO IMPROVE THE SELECTIVITY OF POLYBENZOXAZOLE MEMBRANES - The present invention discloses a novel method to improve the selectivities of polybenzoxazole (PBO) membranes prepared from aromatic polyimide membranes for gas, vapor, and liquid separations. The PBO membranes that were prepared by thermal treating aromatic polyimide membranes containing between 0.05 and 20 wt-% of a poly(styrene sulfonic acid) polymer. These polymers showed up to 95% improvement in selectivity for CO | 06-03-2010 |
20100133191 | SUPPORT FOR TANGENTIAL FLOW FILTRATION AND METHOD FOR THE PREPARATION THEREOF - The disclosure relates to a porous support for tangential flow filtration with a covering surrounding the outer surface of the support, the covering having one or more holes for the evacuation of fluid through the outer surface. The disclosure also relates to a method for preparing such a support. | 06-03-2010 |
20100155334 | HOLLOW FIBER MEMBRANE MODULE, PROCESS FOR MANUFACTURING THE SAME, HOLLOW FIBER MEMBRANE MODULE ASSEMBLY AND METHOD OF PURIFYING SUSPENDED WATER WITH USE - A hollow fiber membrane module characterized by having a tubular module case; a bundle of a multiplicity of hollow fiber membranes housed in the module case; adhesively fixing parts for fixing both side edge portions of the bundle in the module case in such a fashion that raw fluid can pass through the interior of the hollow fiber membranes; a permeated fluid communication part adapted for passable connection between both end faces outside the adhesively fixing parts by a pipe of diameter significantly larger than that of the hollow fiber membranes; and a raw fluid distribution supply part capable of feeding the raw fluid into the module case at one of the adhesively fixing parts, wherein the raw fluid distribution supply part has multiple raw fluid introduction holes made in hollow fiber membrane interspaces so as to be able to supply the raw fluid along the longitudinal direction of the hollow fiber membranes. | 06-24-2010 |
20100181253 | CROSS-LINKED POLYIMIDE MEMBRANES - The present invention provides a method for improving the performance of polyimide membranes as used in solvent-resistant nanofiltration. More specifically the method of the present invention allows to improve the solvent stability of the polyimide membranes to solvents or solvent mixtures that would dissolve polyimide under the conditions applied during the filtration, such as dimethylforrnamide (DMF), N-methylpyrrolidinone (NMP), dimethylacetamide (DMAC), tetrahydrofuran (THF), y-butyrolacton (GBL), dimethylsulphoxide (DMSO) and chlorinated solvents. | 07-22-2010 |
20100193437 | FLUID TREATMENT ELEMENTS AND FLUID TREATMENT ARRANGEMENTS WITH FLUID TREATMENT ELEMENTS HAVING DIFFERENT FLUID TREATEMENT CHARACTERISTICS AND METHODS FOR MAKING AND USING THEM - Fluid treatment arrangements and elements and methods for making and using fluid treatment arrangements and elements are disclosed. A ribbon including a permeable fluid treatment medium may be spirally wound in a plurality of windings to form a fluid treatment element having a disk-shaped body. At least two and as many as many as fifty or more fluid treatment elements may be positioned along a core assembly with spaces between at least some of the adjacent fluid treatment elements to form a fluid treatment arrangement. For some embodiments, fluid flowing between the exterior of the fluid treatment arrangement and the interior of the core assembly may flow through a permeable fluid treatment medium having a first fluid treatment characteristic and a permeable fluid treatment medium having a different second fluid treatment characteristic. For some embodiments, fluid flowing between the exterior of the fluid treatment arrangement and the interior of the core assembly may flow through a fluid treatment element having a first fluid treatment characteristic and a functional material having a different second fluid treatment characteristic. | 08-05-2010 |
20100206810 | FLUID TREATMENT ELEMENTS AND FLUID TREATMENT ARRANGEMENTS WITH SPACES BETWEEN FLUID TREATMENT ELEMENTS AND METHODS FOR MAKING AND USING THEM - Fluid treatment arrangements and methods for making and using fluid treatment arrangements are disclosed. A ribbon including a permeable fluid treatment medium may be spirally wound in a plurality of windings to form a fluid treatment element having a disk-shaped body. For some embodiments, the ribbon may comprise a composite having first and second layers. At least two and as many as many as fifty or more fluid treatment elements may be positioned along a core assembly with spaces between at least some of the adjacent fluid treatment elements. Many, most, or substantially all of the spaces may be substantially free of structure. A fluid treatment arrangement may be contained in a housing to form a fluid treatment assembly. The housing may include an inlet port and an outlet port and may define a fluid flow path between the inlet port and the outlet port. The fluid treatment arrangement may be positioned in the housing across the fluid flow path. | 08-19-2010 |
20100213128 | POLYMER-CONTAINING SOLVENT PURIFYING PROCESS - Polymer-containing solution can be purified and the solvent reused by subjecting the solution to microfiltration using tubular filters having an average pore diameter of less than 1 μm and a filtration pressure of at least 0.35 MPa. This method is particularly useful for reclaiming and reusing solvents that are used in the development or chemical washout of flexographic printing plates. | 08-26-2010 |
20100219130 | System and Method of Fluid Filtration Utilizing Cross-Flow Currents - A filter system and method of filtering a feed liquid utilizing a combined plurality of filter assemblies. Each filter assembly includes a filter housing, a filter cartridge and a spiral passageway for imparting secondary flow currents, particularly Dean-Flow currents, to fluid flowing within the spiral passageways to prevent particulate build-up on filter surfaces so as to extend filter life and duration between replacement. The filter system can be operated within positive or negative pressure filtration processes. A dual-stage filtration process utilizing a cap filter and a cylindrical depth filter is also disclosed. | 09-02-2010 |
20100224562 | Ultraviolet Disinfection System and Method - Embodiments of the invention provide an ultraviolet disinfection system for use with a chamber containing fluid to be treated. The ultraviolet disinfection system includes an ultraviolet light source positioned outside of the chamber, a light manifold, and light fibers extending into the chamber. The light fibers radially disperse the ultraviolet light in order to provide a substantially uniform distribution of ultraviolet light along at least a portion of a longitudinal axis of the chamber. | 09-09-2010 |
20100230351 | Hydrophilic Membrane - The invention relates to an hydrophilic membrane comprising a membrane carrier and a hydrophilic coating with good properties. The coating may comprise covalently bound inorganic-organic hybrid material; or the coating may comprise ring-opening polymerized components like epoxy resins. The coating composition preferably is applied in a solvent, the solvent is evaporated, and the coating is cured with UV radiation. The hydrophilic membrane is very useful in water purification, and in other applications. | 09-16-2010 |
20100237014 | MEMBRANE MODULE WITH MULTIPLE BOTTOM HEADERS AND FILTRATION PROCESS - A membrane module ( | 09-23-2010 |
20100252501 | QUICK CONNECT MODULAR WATER PURIFICATION SYSTEM - Multiple water purifier modules are stacked in a rack having manifolds for each of the various water filtration functions: feed, concentrate, and filtrate. Each module connects to the rack by a quick connect for each of the filtration tubes. The quick connects are of the self-sealing type. A handle on the end of the module away from the rack has a lever for causing the quick connects to release the module from the rack while the system remains in operation. The, module can then be totally removed from the rack for testing, service, or replacement while the overall system remains in operation. Each module contains complete filtration media. The water is passed into the feed tubes under pressure where it passes into an elongated cavity filled with elongated hollow fibers. Filtrate, such as purer water, passes through the walls of the hollow fibers to an outlet, while concentrate, which is fluid with a high percent of impurities, flows from the cavity into concentrate tubes to another outlet for disposal. The tubes and concentrate tubes are small diameter tubes with small holes spaced along their lengths. The tubes lie at opposite sides of the cavity, rather than at opposite ends, and the tubes are surrounded by the fibers that are tightly packed together and that are tightly packed around the tubes, to control the flow rate of feed fluid between them. | 10-07-2010 |
20100258504 | FABRICATION OF ASYMMETRIC POLYSULFONE MEMBRANE FOR DRINKING WATER PURIFICATION - The present invention provides a bio-membrane formulation to be used to eliminate microorganism, turbidity, suspended particles and organic matters from drinking water wherein the bio-membrane includes a polysulfone with a concentration of 15%-18%, N,N-dimethylacetamide of 65%-70% and poly (vinyl-pyrolidone)-K30 at 10%-15%. | 10-14-2010 |
20100282682 | FLUID FILTRATION ARTICLES AND METHODS OF MAKING AND USING THE SAME - Fluid filtration articles, including composite nonwoven fibrous webs, and methods of making and using such articles as gas or liquid filtration elements. The articles include a population of coarse microfibers having a population median diameter of at least 1 micrometer (μm) formed as a first layer, and a population of fine fibers having a population median diameter less than 10 μm formed as a second layer adjoining the first layer. At least one of the fiber populations may be oriented. In one implementation, the coarse microfibers and fine fibers are polymeric, the coarse microfibers have a population median diameter of at least 10 μm, and the fine fibers have a population median diameter less than 10 μm. In another implementation, the population of fine fibers has a population median diameter less than 1 μm. Optionally, one or both of the first and second layers may include particulates. | 11-11-2010 |
20100307974 | PREPARATION AND USE OF NOVEL POLYANILINES FOR WATER TREATMENT - The invention relates to a polyaniline, comprising aniline units and organosulphur units, characterized in that the polyaniline is doped and has a number average degree of polymerization of approximately 5 to approximately 50. The scope of the invention also includes a process for the preparation of polyaniline, wherein aniline and at least one organosulphur unit are converted to a polyaniline derivative in an oxidative, acid-catalyzed polymerization reaction. A subject of the invention is also a coated substrate which is coated with the polyaniline according to the invention and also a process for the coating of the substrate. The scope of the invention furthermore also includes a coating composition which is suitable for the coating of the substrate. The invention thus also relates to a process for the preparation of the coating composition. A subject of the invention is also the use of polyaniline which is doped and has sulphur in the main polymer chain for water treatment and/or for the purification of air and also a purification reactor for carrying out the purification process. | 12-09-2010 |
20100314320 | DEHYDRATION SYSTEM AND DEHYDRATION METHOD - The present invention includes: a water separation membrane device | 12-16-2010 |
20110017668 | WATER PURIFICATION DEVICE - A water purification device includes an expandable water collecting device having a variable volume, wherein at least part of the surface of the water collecting device includes a filter area, the filter area being permeable to water and allowing water to enter the water collecting device when the filter area is submerged in water. The device further includes a mechanically driven expansion means for exerting a force for increasing the volume of the water collecting device and thereby drawing water through the filter area into the water collecting device. In use, the water collecting device is submerged and the expansion means is released, drawing water into the water collecting device through the filter membrane. | 01-27-2011 |
20110024355 | ANTIMICROBIAL MEMBRANES - The present invention discloses the preparation of antimicrobial membranes by inclusion of low leaching, control release silver-based antimicrobial additives as described in claim | 02-03-2011 |
20110042316 | LIQUID FILTRATION MEDIA - A liquid filter with a composite medium that has a nanoweb adjacent to and optionally bonded to a microporous membrane. The membrane is characterized by an LRV value of 3.7 at a rated particle size, and the nanoweb has a fractional filtration efficiency of greater than 0.1 at the rated particle size of the membrane. The nanoweb also has a thickness efficiency ratio of greater than 0.0002 at that efficiency. The nanoweb acts to provide depth filtration to the membrane, prefilters particles and extends the lifetime of the membrane. | 02-24-2011 |
20110108483 | FILTER UNIT WITH FILTER BANK - The invention relates to a filter unit for purification of impure water, which could be seawater intended for ballast water, pool water, waste water or the like. The purification is performed by means of filter modules comprising filter means with dead end filter elements of a sintered material, and the filter unit facilitates alternating backwashing of the filter means at the same time as the filter unit may perform filtration of the impure water. The invention likewise relates to use of a dead end filter element in a de-gassing version, the filter element comprising a top end, a bottom end and a plurality of substantially parallel arranged channels with blockings in different ends. | 05-12-2011 |
20110114560 | SPIRAL TYPE MEMBRANE ELEMENT AND SPIRAL TYPE MEMBRANE FILTERING DEVICE HAVING THE MEMBRANE ELEMENT, AND MEMBRANE FILTERING DEVICE MANAGING SYSTEM AND MEMBRANE FILTERING DEVICE MANAGING METHOD USING THE DEVICE - Provided are a spiral type membrane element that can ensure a larger amount of electric power without performing a cumbersome work and a spiral type membrane filtering device having the element, as well as a membrane filtering device managing system and a membrane filtering device managing method using the device. The spiral type membrane element comprises a sensor for detecting a property of liquid, a power generating section that generates electric power by using said liquid, and a wireless transmitting section that receives the electric power supplied from said power generating section and wirelessly transmits a detection signal from said sensor. By generating electric power in the power generating section with use of the liquid detected by the sensor, a larger amount of electric power can be ensured without performing a cumbersome work. | 05-19-2011 |
20110114561 | SPIRAL TYPE MEMBRANE FILTERING DEVICE AND MOUNTING MEMBER, AND MEMBRANE FILTERING DEVICE MANAGING SYSTEM AND MEMBRANE FILTERING DEVICE MANAGING METHOD USING THE SAME - Provided are a spiral type membrane filtering device by which an electric component can be re-used and a mounting member, as well as a membrane filtering device managing system and a membrane filtering device managing method using the same. An interconnector ( | 05-19-2011 |
20110120949 | HOLLOW FIBER MEMBRANE MODULE, HOLLOW FIBER MEMBRANE MODULE UNIT, AND WATER TREATMENT METHOD - A hollow fiber membrane module, a hollow fiber membrane module unit using the hollow fiber membrane module, and a water treatment method using the module or the module unit enable the efficient contact of microorganisms on the surface of a membrane with a gas, the module and the unit having excellent durability. The hollow fiber membrane module is formed in such a manner that the end parts of sheet-form hollow fiber membranes are formed in a substantially rectangular shape and the end face of the anchoring member on a side where the hollow fiber membranes open is formed in a substantially circular shape. The hollow fiber membrane module unit is formed in such a manner that a plurality of modules is disposed. The water treatment method is used to purify treated water with the microorganisms adhered onto the outer surfaces of the hollow fiber membranes by using the module or the unit. | 05-26-2011 |
20110127219 | POROUS MEMBRANES MADE UP OF ORGANOPOLYSILOXANE COPOLYMERS - The object of the invention is porous membranes (M) comprising organopolysiloxane/polyurea/polyurethane/polyamide/polyoxalyl diamine copolymers of the general formula (1), where R, X, Y, D, E, F, B, B′, m, n, a, b, c and d have the meanings indicated in claim | 06-02-2011 |
20110147308 | Charged Porous Polymeric Membranes and Their Preparation - A charged porous polymeric membrane comprises a porous polymeric membrane substrate comprising a polymeric membrane material and a first polymer having a first functional group, the first polymer is compatible with the membrane material, and a charged polymer has a second functional group, the charged polymer can react with the first polymer to bond the charged polymer to the first polymer, forming a charged coating on the membrane outer and inner surfaces. The membrane may be a microporous or an ultrafiltration membrane. The membrane may be a hollow fiber, flat sheet, or tubular membrane. Methods of manufacturing the membranes and method of using of the membranes to remove viral particles from contaminated water are further described. | 06-23-2011 |
20110163035 | NANOFIBER-CONTAINING MEMBRANE, A COMPOSITE MEMBRANE, A PROCESS FOR PRODUCING THEM AND THEIR USE - A nanofiber-containing membrane has a specific surface area of 0.1 to 1000 m | 07-07-2011 |
20110168630 | GRAFT COPOLYMERS, METHODS FOR GRAFTING HYDROPHILIC CHAINS ONTO HYDROPHOBIC POLYMERS, AND ARTICLES THEREOF - The present invention relates to synthetic methods for grafting hydrophilic chains onto polymers, particularly hydrophobic polymers such as poly(vinyl chloride) (PVC), poly(vinylidene fluoride) (PVDF), and chlorinated polypropylene (cPP). Resulting polymers include comb polymers which can have a microphase-separated structure of hydrophilic domains provided by the hydrophilic chains. Articles prepared from these comb polymers, particularly derived from PVDF, include membranes for water filtration in which the hydrophilic domains provide a pathway for water transport. PVC can be plasticized by grafting the PVC with hydrophilic chains. In addition, such articles, particularly articles having biomedical applications, can display anti-thrombogenic properties. | 07-14-2011 |
20110174734 | Non-Dispersive Process for Insoluble Oil Recovery From Aqueous Slurries - The development and application of a novel non-polar oil recovery process utilizing a non-dispersive solvent extraction method to coalesce and recover oil from a bio-cellular aqueous slurry is described herein. The process could apply to recovery of algal oil from a lysed algae slurry, recovery of Omega fatty acids from a bio-cellular aqueous feed, recovery of Beta-carotene from a bio-cellular aqueous feed and for the removal from produced water in oil production and similar type applications. The technique of the present invention utilizes a microporous hollow fiber (MHF) membrane contactor. The novel non-polar oil recovery process described herein can be coupled to a collecting fluid (a non-polar solvent such as heptane, a biodiesel mixture or the previously extracted oil) that is circulated through the hollow fiber membrane. In cases where the biodiesel mixture or the previously extracted oil is used the solvent recovery step (e.g. distillation) can be eliminated. | 07-21-2011 |
20110174735 | Unit And Method For Preparing A Sample For The Microbiological Analysis Of A Liquid - The unit comprises a filter membrane ( | 07-21-2011 |
20110198288 | Fouling Resistant Membranes Formed with Polyacrylonitrile Graft Copolymers - The present application is generally directed towards polyacrylonitrile— (PAN—) based, amphophilic graft copolymers, for example, for the production of membranes for liquid filtration. In one aspect, the present invention provides systems and methods for preparing high flux, fouling resistant nanofiltration membranes whose pore size can be readily tuned. In some cases, microphase separation of a graft copolymer comprising a backbone comprising polyacrylonitrile (PAN) and hydrophilic side-chains is used. In some cases, nanochannels of tunable width are formed, which may give the membrane permselective properties and/or anti-fouling character. In some cases, a copoylmer may be used as an additive in the immersion precipitation casting of ultrafiltration or microfiltration membranes. In certain instances, the additive can segregate to the membrane exterior and/or pore surfaces, e.g., due to favorable interactions between the hydrophilic side chains and the surrounding environment, which may create a surface that resists fouling, e.g., by biological molecules. | 08-18-2011 |
20110198289 | HEAT EXCHANGER AND METHOD FOR HEAT EXCHANGING - A method for exchanging heat between an effluent fluid and a treatment fluid and a heat exchanger for heat exchange as well as an arrangement and a kit comprising a heat exchanger. The heat exchanger comprises a first and a second fluid circuit extending through the heat exchanger. The heat exchanger further comprises a stack of fluid plates and a membrane arranged between each of the fluid plates where one interspace is formed between each fluid plate and membrane. The first and the second fluid circuit is each constituted by a passage extending through the fluid plates and membranes and along the fluid plates and membranes in at least two interspaces. According to the method for heat exchanging an effluent fluid is passed through the first fluid circuit and a treatment fluid is passed through the second fluid circuit such that the effluent fluid is passed along one side of a membrane and simultaneously the treatment fluid is passed along the other side of the membrane. Heat is thus exchanged between the effluent fluid and the treatment fluid over the membrane. | 08-18-2011 |
20110203994 | Forward Osmosis Separation Processes - Separation processes using engineered osmosis are disclosed generally involving the extraction of solvent from a first solution to concentrate solute by using a second concentrated solution to draw the solvent from the first solution across a semi-permeable membrane. One or both of the solute and solvent may be a desired product. Enhanced efficiency may result from using low grade waste heat from industrial or commercial sources. | 08-25-2011 |
20110210070 | HOLLOW FIBER MEMBRANE MODULE, HOLLOW FIBER MEMBRANE MODULE UNIT, AND WATER TREATMENT METHOD - A hollow fiber membrane module, a hollow fiber membrane module unit using the hollow fiber membrane module, and a water treatment method using the module or the module unit enable the efficient contact of microorganisms on the surface of a membrane with a gas, the module and the unit having excellent durability. The hollow fiber membrane module is formed in such a manner that the end parts of sheet-form hollow fiber membranes are formed in a substantially rectangular shape and the end face of the anchoring member on a side where the hollow fiber membranes open is formed in a substantially circular shape. The hollow fiber membrane module unit is formed in such a manner that a plurality of modules is disposed. The water treatment method is used to purify treated water with the microorganisms adhered onto the outer surfaces of the hollow fiber membranes by using the module or the unit. | 09-01-2011 |
20110215051 | METHOD AND APPARATUS FOR THE FILTRATION OF BIOLOGICAL SOLUTIONS - A system, method and device are disclosed for bio-processing a feed stream and providing a constant output by operating a continuous single-pass tangential-flow process. The single-pass process provides high conversion concentration while operating at relatively low feed flow rates, and the process can also be used to provide constant output diafiltration. | 09-08-2011 |
20110220574 | Membranes With Functionalized Carbon Nanotube Pores For Selective Transport - Provided herein composition and methods for nanoporous membranes comprising single walled, double walled, or multi-walled carbon nanotubes embedded in a matrix material. Average pore size of the carbon nanotube can be 6 nm or less. These membranes are a robust platform for the study of confined molecular transport, with applications in liquid and gas separations and chemical sensing including desalination, dialysis, and fabric formation. | 09-15-2011 |
20110240556 | MEMBRANE COMPOSITIONS AND METHODS FOR MAKING AND USING THEM - By modifying existing methods for synthesizing polyaniline, a polyaniline polymer having a new constellation of material properties has been produced. The material properties of the polymeric compositions disclosed herein enhance the use of polyanilines in a wide variety of processes that use such materials, for example processes used in the formation of filtration membranes. | 10-06-2011 |
20110266222 | POLYBENZIMIDAZOLE-BASED MEMBRANES FOR THE DEHYDRATION OF ORGANIC LIQUIDS VIA PERVAPORATION - A hollow fiber membrane has an outer layer of polybenzimidazole (PBI) and an inner support layer, e.g., polyetherimide (PEI). The hollow fiber membrane is made by a co-extrusion (spinning) process. The hollow fiber membrane may be used in a pervaporation process, such as a pervaporation dehydration of an organic liquid, e.g., ethylene glycol (EG). A contactor is made with the hollow fiber membrane. | 11-03-2011 |
20110272355 | SOLVENT REMOVAL AND RECOVERY FROM INORGANIC AND ORGANIC SOLUTIONS - A process for recovering solvents from inorganic and organic solutions is disclosed. The process utilizes a polymer capable of selectively extracting the solvent from the inorganic or organic solution. Introduction of the polymer into the solvent solution creates formation of a polymer-rich phase and a solute-rich phase. The recovered solvent may be separated from the polymer-rich phase by heating the polymer-rich phase to at least the cloud point of the polymer. The polymer and/or solute may be re-cycled for further use in the solvent recovery process. | 11-10-2011 |
20110278227 | POLYMER MEMBRANES PREPARED FROM AROMATIC POLYIMIDE MEMBRANES BY THERMAL TREATING AND UV CROSSLINKING - The present invention discloses a new type of high performance polymer membranes prepared from aromatic polyimide membranes by thermal treating and crosslinking and methods for making and using these membranes. The polymer membranes were prepared from aromatic polyimide membranes by thermal treating under inert atmosphere followed by crosslinking preferably by using a UV radiation source. The aromatic polyimide membranes were made from aromatic polyimide polymers comprising both pendent hydroxy functional groups ortho to the heterocyclic imide nitrogen and cross-linkable functional groups in the polymer backbone. The membranes showed significantly improved selectivity and permeability for gas separations compared to the aromatic polyimide membranes without any treatment. The membranes can be fabricated into any convenient geometry and are not only suitable for a variety of liquid, gas, and vapor separations, but also can be used for other applications such as for catalysis and fuel cell applications. | 11-17-2011 |
20110290727 | Process for Preparing Membranes - A process for preparing a composite membrane comprising the steps of:
| 12-01-2011 |
20120000853 | SUPERHYDROPHILIC AND OLEOPHOBIC POROUS MATERIALS AND METHODS FOR MAKING AND USING THE SAME - The present disclosure provides a porous material having a surface that is concurrently both superhydrophilic (having a first apparent advancing dynamic contact angle of less than or equal to about 5° for water) and oleophobic (having a second apparent advancing dynamic contact angle of greater than or equal to about 90°) or superoleophobic (a second apparent advancing dynamic contact angle of greater than or equal to about 150° for oil). Such materials can be used in a separator device to separate a liquid-liquid mixture of immiscible components (e.g., oil and water) or miscible components (e.g., alcohols). Separation apparatus incorporating such materials and methods of making and using these materials are also provided. | 01-05-2012 |
20120024787 | Novel Coated Membranes and Other Articles - The present invention provides porous media or membranes having a surface coating that includes a cross-linked terpolymer which has a superior combination of properties, including heat stable biomolecule resistant adsorptive properties, resistance to strong alkaline solutions, and low levels of extractable matter. In some preferred embodiments, the porous media is a porous membrane. | 02-02-2012 |
20120031842 | METHOD FOR MODIFYING COMPOSITE MEMBRANES FOR LIQUID SEPARATIONS - A method for modifying the surface of nanofiltration (NF) and reverse osmosis (RO) composite membranes, comprising placing said composite membrane in a suitable vessel having a feed inlet opening and a permeate outlet opening, feeding an aqueous solution of one or more monomer(s) and free radical initiator into said vessel through said inlet opening, generating transmembrane pressure, thereby creating a flux across said membrane into said permeate outlet opening and causing said monomer(s) graft polymerize in the presence of said free radical initiator onto one face of said composite membrane. | 02-09-2012 |
20120031843 | Membranes based on polyvinyl alcohol - The invention relates to the use of silane-modified polyvinyl alcohols for producing membranes, characterized in that the silane-modified polyvinyl alcohols can be obtained by a) radically initiated copolymerization of one or more vinyl esters from unbranched or branched carboxylic acids having 1 to 15 C-atoms and one or more ethylenically unsaturated silane compounds selected from the group comprising compounds of the general formulae CR | 02-09-2012 |
20120080379 | METHOD AND PRODUCTION PLANT FOR PRODUCING STERILE WATER - A method of producing sterile water from raw water during a production cycle in a production plant P, including adding a disinfectant to the produced sterile water during the production cycle to permanently monitor the condition of the sterile water and/or the production plant, and determining and evaluating a reduction of concentration of the disinfectant directly in the production stream. In a production plant suited for carrying out the method, a sterile sensor is provided directly in the production stream through which the reduction of concentration of the disinfectant added to the produced sterile water can be permanently measured and evaluated to provide a sterility evidence. | 04-05-2012 |
20120097610 | METHOD AND APPARATUS FOR MICROFILTRATION TO PERFORM CELL SEPARATION - A microfiltration apparatus and method for separating cells, such as circulating tumor cells, from a sample using a microfiltration device having a top porous membrane and a bottom porous membrane. The porous membranes are formed from parylene and assembled using microfabrication techniques. The porous membranes are arranged so that the pores in the top membrane are offset from the pores in the bottom membrane. | 04-26-2012 |
20120097611 | COMPOSITE ADSORBENT FROM NATURAL RAW MATERIAL AND USING THE SAME TO REMOVE HEAVY METAL FROM INDUSTRIAL WASTE WATER - An adsorbent composition and method of cleaning the industrial waste water using the composite is described. The method for removing heavy metals from contaminated water is done by mixing contaminated water having a concentration of one or more heavy metals with an adsorbent composite comprising granules of a mixture of 50.363 wt % kaolin clay, a 4.477 wt % roasted date pits powder, a 5.54 wt % silica powder a 14.99 wt % magnesite powder and a 24.623 wt % water. After reacting the contaminated water and adsorbent composite together for a specific time the water is filtered and was found to contain reduced amount of heavy metals. The cleaned water can further be used for industrial cooling systems or watering gardens. | 04-26-2012 |
20120103904 | SEPARATION MEMBRANE MODULE FOR OIL-CONTAINING WASTEWATER TREATMENT, OIL-CONTAINING WASTEWATER TREATMENT METHOD, AND OIL-CONTAINING WASTEWATER TREATMENT APPARATUS - Provided is a separation membrane module which is suitable for filtration of oil-containing wastewater. The separation membrane module for oil-containing wastewater treatment separates water-insoluble oil from oil-containing wastewater that has high turbidity and/or high temperature. The separation membrane module for oil-containing wastewater treatment is characterized by using a hollow fiber membrane which is composed of an alkali-resistant porous membrane selected from polytetrafluoroethylene (PTFE), polysulfone (PSF), and polyether sulfone (PES) and which has a tensile strength of 30 N or more, and characterized in that each of the hollow fiber membrane and an end-sealing member of the hollow fiber membrane has a heat distortion temperature of 100° C. or higher. | 05-03-2012 |
20120118827 | METHOD OF CONCENTRATING LOW TITER FERMENTATION BROTHS USING FORWARD OSMOSIS - The present invention relates to a method for concentrating law titer fermentation broth, and more particularly to a method for concentrating a fermentation broth using forward osmosis. The method comprises: introducing the fermentation broth and an osmolyte into a feed chamber and a draw chamber, respectively, which are included in a concentration system and are divided from each other by a forward osmosis membrane, and subjecting the introduced fermentation broth to forward osmosis, thereby concentrating the fermentation broth in the feed chamber. The method can maximize the concentration of the low titer fermentation broth while minimizing energy consumption and operating cost, and thus can contribute to the industrialization of new technology. | 05-17-2012 |
20120125848 | PARTICLE FILTER AND MANUFACTURING METHOD THEREFOR - A mechanical particle filter comprises a membrane having a plurality of pores. At least one partial region of the surface of the membrane, that is accessible for the medium to be filtered, includes a carbon material having a diamond structure. | 05-24-2012 |
20120125849 | METHOD AND ARRANGEMENT FOR CLARIFYING GREEN LIQUOR - Green liquor clarification comprising filtering of a flowing suspension containing solids, wherein the suspension is brought into contact with a first filter unit ( | 05-24-2012 |
20120125850 | DEFORMED POROUS HOLLOW FIBER MEMBRANE, PRODUCTION METHOD OF DEFORMED POROUS HOLLOW FIBER MEMBRANE, AND MODULE, FILTRATION DEVICE, AND WATER TREATMENT METHOD IN WHICH DEFORMED POROUS HOLLOW FIBER MEMBRANE IS USED - A porous hollow fiber membrane that is suitable for treatment of liquid containing an inorganic substance and/or an organic substance, is obtained at a low cost performance, and has high water permeability performance, fretting resistance, and drying resistance. A deformed porous hollow fiber membrane according to the present invention is composed of a thermoplastic resin and includes a continuous asperity provided on the periphery in the longitudinal direction of the membrane, in which the periphery of the hollow fiber membrane in the circumferential direction includes continuous projected and depressed parts. | 05-24-2012 |
20120132590 | Method for fabrication of elastomeric asymmetric membranes from hydrophobic polymers - Hydrophobic, asymmetric membranes are formed integrally from elastomeric polymers. The membranes have a dense, discriminating layer and a thick, porous support layer and require not other support. The membranes of the invention provide an economic advantage over prior art composite membranes used for separating target organics from a mixture. | 05-31-2012 |
20120138535 | PERFORATED MEMBRANES - The present invention relates to a membrane comprising at least one molecular monolayer composed of low-molecular aromatics and cross-linked in the lateral direction, wherein the membrane has a thickness in the range from 1 to 200 nm and a perforation in the form of openings having a diameter in the range from 0.1 nm to 1 μm, to a method for the production thereof, and to a use thereof. | 06-07-2012 |
20120145632 | ELECTROSPINNING OF POLYAMIDE NANOFIBERS - The invention relates to a process for the preparation of polyamide nanofibers by electrospinning, wherein the process is a multi-nozzle electrospinning process with the use of a multi-nozzle device or a nozzle-free electrospinning with the use of nozzle free device, comprising steps wherein a high voltage is applied, a polymer solution comprising a polymer and a solvent is fed to the multi-nozzle device or the nozzle free device and transformed under the influence of the high voltage into charged jet streams the jet streams are deposited on a substrate or taken up by a collector, and the polymer in the jet streams solidifies thereby forming nanofibres, and wherein the polymer comprises a semi-crystalline polyamide having a C/N ratio of at most 5.5 and a weight average molecular weight (Mw) of at most 35,000. The invention also relates polyamide nanofibers made by the electrospinning process, as well as to products made thereof and use thereof. | 06-14-2012 |
20120152843 | CERAMIC MEMBRANES - Processes for fabricating ceramic membranes include providing a porous substrate having at least one inner channel extending therethrough and having surfaces defined by porous walls, depositing a coating slurry on surfaces of the inner channel(s), and sintering. Sintering temperatures for the processes range from about 400° C. to 800° C. Coating slurries for use in the processes include a boehmite sol and a colloidal suspension of porous alumina particles. | 06-21-2012 |
20120152844 | LIQUID EXTRACTION METHOD EMPLOYING DIP TUBE - A container for liquids is provided, in which pressurisation of the container is used to force the liquid through one or more membranes to an output. The membranes are disposed across substantially an entire length of the container, and pass liquid in preference to the air. As a result, the liquid may be extracted from the container in any orientation. A particular use for this kind of container is as a portable water bottle containing a filter. | 06-21-2012 |
20120168378 | METHOD FOR PRODUCING PURE WATER AND PURE WATER PRODUCTION APPARATUS - A pure water production apparatus and method are provided that effectively use an isobaric type energy recovery unit that can efficiently recover energy against feed water variation. In a pure water producing method supplying and having a plurality of kinds of feed water with different water qualities permeated through a semi-permeable membrane to produce the pure water, a portion (referred to as first feed water) of the plurality of kinds of feed water supplied to a semi-permeable membrane unit comprising the semi-permeable membrane is boosted by utilizing an isobaric type energy recovery unit that recovers pressure energy of concentrate discharged from the semi-permeable membrane unit, the rest (referred to as second feed water) of the plurality of kinds of feed water is boosted by a high pressure pump, and the boosted first and second feed water are supplied together to the semi-permeable membrane unit. | 07-05-2012 |
20120168379 | WAFER-SHAPED HOLLOW FIBER MODULE FOR IN-LINE USE IN A PIPING SYSTEM - A wafer-shaped hollow fiber module adapted for in-line use in a piping system. The piping system may include two standard bolted flange connections, and at least one wafer-shaped hollow fiber module sealed between the two standard bolted flange connections. The wafer shaped hollow fiber module includes: a cylindrical housing having an open end and a closed end having a first sealing surface and an inlet port; at least one side port through the cylindrical housing; an end cap united to the open end having a second sealing surface and an outlet port. | 07-05-2012 |
20120223017 | OIL PURIFICATION METHOD AND APPARATUS WITH POROUS MEMBRANE - Provided is a method of purifying oil by which nano particles are effectively removed from the oil. According to the oil purifying method, oil is effectively purified at a high temperature using a carbon nanostructure-metal or -metal oxide composite nano porous membrane composed of a carbon nanostructure-metal composite | 09-06-2012 |
20120234757 | INTRAVENOUS FILTER - Intravenous fluid filter devices including a filter comprising spaced apart first and second filter elements comprising hydrophilic membranes and providing inside-out flow, and methods of using the devices, are disclosed. | 09-20-2012 |
20120255907 | WATER PRODUCING SYSTEM AND OPERATION METHOD THEREFOR - A water producing system which is provided with a semi-permeable membrane treatment process A | 10-11-2012 |
20120261342 | PROCESS FOR IMPROVING THE PRECIPITATION OF CALCIUM AND/OR MAGNESIUM SALTS IN THE REGENERATION OF USED ALKALINE CLEANING SOLUTION - A process for improving the precipitation of calcium and/or magnesium salts in the regeneration of a used alkaline cleaning solution includes the steps of providing a spent alkaline or acidic cleaning solution, adding sodium bentonite and sodium carbonate to the spent alkaline or acidic cleaning solution in a mixing zone so as to provide an interactive solution, adding only one of an anionic polymeric flocculating agent or a cationic polymer flocculating agent to the interactive solution, and precipitating in soluble calcium and magnesium salts as flocs. The solution containing the flocs is subjected to a filtration process so as to bring the precipitated solids to a solids content of greater than 25%. | 10-18-2012 |
20120279922 | COMPOSITE SILICONE MEMBRANES OF HIGH SEPARATION EFFICIENCY - Composite membrane having a separating membrane layer characterized in that a separating membrane layer is produced by curing laterally modified silicone acrylates of the general Formula I | 11-08-2012 |
20120292255 | FILTRATION AND USE OF METAL NANOPARTICLES AS NON-OPTICAL TAGS IN CHEMICAL-, BIO-CHEMICAL SENSORS AND MICRO-ELECTROMECHANICAL DEVICES - This disclosure provides methods to use nanoparticles as non-optical tags for detecting a change in mass. chemical sensing or bio-sensing events or reaction upon conjugation of nanoparticles onto a thermoresistor heat sensor. Particularly described is the use of metal nanoparticles in thermal sensors, thermal bio-sensors, and sensing pixel arrays for multiple analyte sensing. In addition, an asymmetric filter is disclosed that allows size separation of molecules from nanoparticles. The asymmetric filter is a porous membrane that is designed to have a small pore size in one size and a large pore size on the other side. | 11-22-2012 |
20120298582 | Layered Tubular Membranes for Chromatography, and Methods of Use Thereof - Described are wrapped fluid treatment elements, comprising: a composite material; an interleaf; and an inner core; wherein the composite material and the interleaf form layers wrapped around the inner core. The composite material and interleaf may be wrapped in a spiral configuration around the inner core. The invention also relates to a method of separating a substance from a fluid, comprising the step of placing the fluid in contact with an inventive device or element, thereby adsorbing or absorbing the substance to the composite material contained therein. | 11-29-2012 |
20120298583 | Drinking straw with Hollow Fibre Liquid Filter - A liquid filtration method and device, for example a drinking straw with a mouthpiece, and a bundle of hollow fibres. The open ends of the fibres are embedded in a base and provided in a compartment between the base and a liquid outlet. Water or other liquid flows into the inner volume of the hollow fibres and from there through their filtering membrane walls and into the compartment before the liquid flows out through the liquid outlet, for example the mouthpiece. | 11-29-2012 |
20120318741 | Self-Assembled Block Copolymer Membrane - Embodiments of the invention include methods for the production of porous membranes. In certain aspects the methods are directed to producing polymeric porous membranes having a narrow pore size distribution. | 12-20-2012 |
20120325746 | POLYMER MEMBRANE FOR WATER TREATMENT AND METHOD FOR MANUFACTURE OF SAME, AND WATER TREATMENT METHOD - A polymer membrane for water treatment, characterized in comprising a hollow fiber membrane having a self-supporting design composed of the substantially single principal structural material, with an outer diameter of 3.6 mm to 10 mm and a ratio of outer diameter to thickness, SDR, of 3.6 to 34. | 12-27-2012 |
20130015135 | METHOD AND SYSTEM FOR WATER TREATMENT - Water treatment systems including electrically-driven and pressure-driven separation apparatus configured to produce a first treated water suitable for use as irrigation water and a second treated water suitable for use as potable water from one of brackish water and seawater and methods of operation of same. | 01-17-2013 |
20130020260 | Device for the Continuous Electrochemical Deionisation with Integrated Membrane Unit - A device for the electrodeionisation of an aqueous electrolyte solution, comprising an electrodeionisation module ( | 01-24-2013 |
20130020261 | FILTERING METHOD OF WATER TO BE TREATED - A filtering method of water to be treated including: performing air diffusion from air diffusing units, while the water to be treated is processed with a filtering process using a membrane unit, wherein the filtering process is an intermittently performing filtering process, the membrane unit has two or more separation membrane modules, a membrane surface of the separation membrane modules has a flat shape and extends along a vertical direction, two or more air diffusing units are arranged in a lower-side direction of the membrane unit, the air diffusing units each has one or more air diffusing pipes, and when air is ejected from the air diffusing units, the air diffusing unit which ejects air is switched per a constant air diffusing time t | 01-24-2013 |
20130032539 | Centrifugal Filter - Filtration device suited for concentration of liquid samples, particularly biomolecules, and a method of concentrating, desalting, purifying and/or fractionating liquid samples. In certain embodiments the device includes a housing having a sample reservoir, and two substantially vertically oriented and spaced apart membranes disposed in the housing. An underdrain is associated with each membrane such that fluid passing through each membrane flows through a respective underdrain into a filtrate collection chamber. The fluid that does not pass through the membrane is collected in the retentate collection chamber, and can be recovered such as by a reverse spinning step, achieving recoveries greater than about 90%. The substantially vertical orientation of the membranes increases the available membrane area by at least 2.7 times the area available in a conventional filter device. The two-panel configuration also maintains more available membrane area in use during the last stages of filtration than a one-panel configuration. | 02-07-2013 |
20130037486 | FLUID TREATMENT ASSEMBLIES, MANIFOLDS FOR FLUID TREATMENT ASSEMBLIES, AND METHODS FOR TREATING FLUIDS - A fluid treatment assembly comprises one or more cross flow fluid treatment units positioned between opposite end pieces. The fluid treatment unit includes a permeable fluid treatment medium having a feed side and a permeate side. The fluid treatment assembly further comprises a feed inlet and feed passage, a permeate outlet and a permeate passage, and a retentate outlet and a retentate passage. The feed passage directs feed fluid from the feed inlet to the permeable medium and tangentially along the feed side of the permeable medium. The permeate passage directs permeate from the permeate side of the permeable medium to the permeate outlet. The retentate passage directs retentate from the feed side of the permeable medium to the retentate outlet. A flow restrictor is positioned in the retentate passage. | 02-14-2013 |
20130043188 | CONTROL OF IMMERSED MEMBRANE SYSTEM CONSIDERING ENERGY COST FLUCTUATIONS - An immersed membrane filtration system is operated in view of an electricity pricing programs in which the price of electricity varies over time. Examples of such programs include time of use pricing, critical peak pricing and critical peak rebate programs. Alternatively, the filtration system may be operated, for example as part of a smart grid, in view of requests or demands by an electrical utility for time limited reductions in energy use. During a high energy cost period of time, one or more membrane units are shut down. Preferably, aeration of the still operating membrane units is not increased. The flux of the still operating trains may be increased towards a pre-determined maximum permitted flux, or towards a maximum flux that is calculated in view of operational parameters such as water temperature or viscosity. Optionally, during a low energy cost period of time, one or more additional membrane units may be turned on. Optionally, the transfer of water from an equalization tank may also be controlled in view of the energy pricing program. | 02-21-2013 |
20130043189 | Filtration Device Having Internal Recirculation - A device for micro-, ultra-, or nanofiltration that includes one or more flat filter modules having flat filter elements arranged in parallel and at a distance from each other and gas injectors of one or more gas lifting systems for producing a circulating cross flow directed tangentially to the surface of the flat filter elements and having at least one rising area, in which the cross flow flows substantially vertically upward, and at least one falling area, in which the cross flow flows substantially vertically downward, in which the rising area flows through 10 to 100% and the falling area flows through 10 to 100% of an inlet-flow volume of the at least one flat filter module. | 02-21-2013 |
20130056420 | MULTILAYER MICROFILTRATION MEMBRANE - A microfiltration membrane comprising (a) an asymmetric layer, (b) an isometric layer, and (c) an interface layer between the asymmetric layer and the isometric layer, the interface layer having a first portion contacting the asymmetric layer and a second portion contacting the isometric layer; wherein, (i) the asymmetric layer has a region contacting the first portion of the interface layer, the region including cells having a first porous structure; (ii) the isometric layer has a region contacting the second portion of the interface layer, the region including cells having a second porous structure; the first porous structure being larger than the second porous structure; and the first portion of the interface layer comprises cells having the first porous structure, and the second portion of the interface layer comprises cells having the second porous structure, and methods of making and using the membrane, are disclosed. Also disclosed is a microfiltration membrane comprising (a) a first asymmetric layer, (b) a second asymmetric layer, and (c) an interface layer between the first asymmetric layer and the second asymmetric layer, the interface layer having a first portion contacting the first asymmetric layer and a second portion contacting the second asymmetric layer; wherein, (i) the first asymmetric layer has a region contacting the first portion of the interface layer, the region including cells having a first porous structure; (ii) the second asymmetric layer has a region contacting the second portion of the interface layer, the region including cells having a second porous structure; the first porous structure being larger than the second porous structure; and the first portion of the interface layer comprises cells having the first porous structure, and the second portion of the interface layer comprises cells having the second porous structure, as well as methods of making and using the membrane. | 03-07-2013 |
20130062284 | DRAINAGE SYSTEM - A system for draining sludge is provided using water-permeable hoses which are closed at both ends and filled with sludge. A first, lower row of sludge-filled hoses located parallel to one another, and one beside the other, has arranged on it at least a second row of sludge-filled hoses located parallel to one another, and one beside the other. The second row can have arranged on it a third, fourth or further row of sludge-filled hoses. On the upper side of each row which bears at least one further row of sludge-filled hoses, drainage pipes, which extend over the length of the hoses, are arranged in the upwardly open channels, which are formed by in each case two sludge-filled hoses located one beside the other. The hoses have a diameter of 0.4 to 1.6 m and a length of at least 10 m. | 03-14-2013 |
20130062285 | Oil-Tolerant Polymer Membranes for Oil-Water Separations - The invention relates to oil-tolerant water-filtration membranes comprising a microporous hydrogel coated on a porous polymeric support membrane, useful in separating hydrocarbons and hydrocarbon emulsions from a water sample. The oil-tolerant water-filtration membranes comprising a hydrophilic microporous crosslinked polymeric hydrogel coated on at least one side of a porous polymeric support membrane. The water-filtration membrane having a first face corresponding to the discrimination layer and a second face corresponding to the porous support, applying pressure to a water solution, having at least one solute, at the first face of the water-filtration membrane, and collecting purified water at the second face of water-filtration membrane. Polymeric membranes have many advantages over ceramics, including inexpensive manufacture and the ability to be manufactured into very compact (high surface area) elements. | 03-14-2013 |
20130075336 | METHOD AND SYSTEM FOR CONTINUOUS SEPARATION AND PURIFICATION OF GANODERIC ACIDS AND POLYSACCHARIDES - The present invention provides a method and system for continuous separation and purification of ganoderic acids and polysaccharides, which, via the help of supercritical fluid technology, could feed continuously | 03-28-2013 |
20130081999 | Bridged Macrocyclic Module Compositions - This invention is related to the fields of organic chemistry and nanotechnology. In particular, it relates to materials and methods for the preparation of organic synthons and bridged macrocyclic module components. The bridge macrocyclic module compounds may be used to prepare macrocyclic module compositions such as nanofilms, which may be useful for filtration. | 04-04-2013 |
20130098839 | DEVICE ALLOWING SERIAL USE OF CLEAN AND ALTERNATIVE BLOOD FILTERS DURING BLOOD FILTRATION - A device that allows for serial (time) use of clean blood filters during the use of a heart lung machine. The device is comprised of a series of filters and a switching mechanism that allows the new filter to be placed in the blood flow pathway while at the same time removing the old (previous) filter. A clean filter is always available, and filters for specific components of blood or those able to bind and remove specific biochemicals can be used. | 04-25-2013 |
20130112621 | Water filtration article and related methods - A water filtration article has a filtration layer of thickness no larger than 10 microns including porous polytetrafluoroethylene coated with a hydrophilic coating comprising uncrosslinked ethylene-vinyl alcohol copolymer. Methods include water filtration using and manufacture of such a water filtration article. | 05-09-2013 |
20130118980 | POLYMERIC MATERIAL, PRODUCTION AND USE THEREOF - The present invention relates to a polymeric material obtainable by reaction of
| 05-16-2013 |
20130118981 | POROUS HOLLOW FIBER - Porous hollow fibers comprising first pores having an average length in the range from 0.045 μm to 120 μm and an average width in the range from 0.030 μm to 20 μm, measured in a fiber direction, wherein the ratio of the average length of the first pores to the average width of the first pores is at least 1.5:1, second pores having an average length in the range from 0.1 nm to 99 nm and an average width in the range from 1 nm to 20000 nm, measured in the direction of the fiber in each case, wherein the ratio of the average length of the second pores to the average width of the second pores is not more than 1:1.5. Preferred application areas include use in fillings, in selectively permeable membranes, for the immobilization of enzymes and/or cells, for hemodialysis, and for storage of hydrogen. | 05-16-2013 |
20130126433 | Water Treatment Apparatus, System and Process - Water treatment apparatus, including: a ceramic filter; and a flow apparatus operable to pass water through the ceramic filter in a forward direction so as to filter the water, the flow apparatus also operable to pass water through the ceramic filter in a reverse direction so as to remove material from the ceramic filter, whereby material having been deposited by filtration of the water is removed. | 05-23-2013 |
20130146538 | BLEND POLYMERIC MEMBRANES COMPRISING TETRAZOLE-FUNCTIONALIZED POLYMER OF INTRINSIC MICROPOROSITY AND POLYETHYLENE GLYCOL - The present invention is for high permeance and high selectivity blend polymeric membranes comprising poly(ethylene glycol) (PEG) and a highly permeable polymer selected from the group consisting of polymers of intrinsic microporosity (PIMs), tetrazole-functionalized polymers of intrinsic microporosity (TZPIMs), or mixtures thereof. The present invention also involves the use of such membranes for separations of liquids and gases. | 06-13-2013 |
20130146539 | MEMBRANE WITH LOCALIZED ASYMMETRIES - Membranes with localized asymmetries, devices including the membranes, and methods of making and using the membranes, are disclosed. | 06-13-2013 |
20130161257 | AXIAL BYPASS SLEEVE - The present disclosure describes an axial bypass sleeve for use with a spiral wound membrane element. The axial bypass sleeve has a protrusion and an opening that defines a flow path to provide fluid flow communication through the axial bypass sleeve. In use, the axial bypass sleeve is wrapped around a spiral wound membrane element and both are placed in a pressure housing. A pressurized feedstock is introduced into the pressure housing. A portion of the pressurized feedstock flows through the spiral wound membrane element to produce a permeate stream and a retentate stream. A portion of the pressurized feed stock flows around the spiral wound membrane element, called bypass flow. The protrusion extends into the annular space to restrict the bypass flow. A portion of the bypass flow passes through the opening and enters into the spiral wound membrane element to increase permeate production. | 06-27-2013 |
20130161258 | SANITARY BRINE SEAL - The present disclosure describes a brine seal for use with a spiral wound membrane element. The brine seal has an elongate body with a flexible wing. The brine seal is wrapped around the spiral membrane element with a space between each turn of the brine seal. The wrapped spiral wound membrane unit is placed inside a pressure housing. Between the wrapped spiral wound membrane element and an inner surface of the pressure housing is an annular space. The brine seal, the spiral wound membrane element and the pressure housing establish a bypass flow channel that spirals around the spiral wound membrane element, through the annular space. Feedstock can enter the bypass flow channel to provide sanitary flushing of the annular space. Some of the feedstock in the bypass flow channel enters the spiral wound membrane to improve the efficiency of the spiral wound membrane element. | 06-27-2013 |
20130180920 | NANOPOROUS MATERIALS, MANUFACTURE OF NANOPOROUS MATERIALS AND APPLICATIONS OF NANOPOROUS MATERIALS - A nanoporous material is disclosed having a plurality of lamellae. Through each lamella is an array of penetrating pores. Adjacent lamellae are spaced apart by an intervening spacing layer. The spacing layer comprises an array of spacing elements integrally formed with and extending between the adjacent lamellae. The spacing layer has interconnected porosity extending within the spacing layer. Such a nanoporous material can be manufactured using block copolymer materials. First, a morphology is formed comprising a three dimensional array of isolated islands in a continuous matrix. The islands are formed of at least one island component of the block copolymer and the matrix is formed of at least one matrix component of the block copolymer. Next, channels are formed in the matrix between at least some of the islands. The island component is then selectively removed to leave the matrix with an array of interconnected pores. | 07-18-2013 |
20130186830 | Centrifugal Filter - Filtration device suited for concentration of liquid samples, particularly biomolecules, and a method of concentrating, desalting, purifying and/or fractionating liquid samples. In certain embodiments the device includes a housing having a sample reservoir, and two substantially vertically oriented and spaced apart membranes disposed in the housing. An underdrain is associated with each membrane such that fluid passing through each membrane flows through a respective underdrain into a filtrate collection chamber. The fluid that does not pass through the membrane is collected in the retentate collection chamber, and can be recovered such as by a reverse spinning step, achieving recoveries greater than about 90%. The substantially vertical orientation of the membranes increases the available membrane area by at least 2.7 times the area available in a conventional filter device. The two-panel configuration also maintains more available membrane area in use during the last stages of filtration than a one-panel configuration. | 07-25-2013 |
20130193075 | ASYMMETRIC MEMBRANES - Asymmetric membranes comprising a first asymmetric porous zone including a first porous asymmetry that increases from the first exterior surface through the first porous zone of the bulk, and a second asymmetric porous zone including a second porous asymmetry that increases from the second exterior surface through the second porous zone of the bulk, wherein the first average pore size is larger than the second average pore size, as well as methods of making and using the membranes, are disclosed. | 08-01-2013 |
20130193076 | DRIVE DEVICE FOR A MEMBRANE FILTRATION ARRANGEMENT - The invention relates to a membrane filtration device comprising a plurality of planar membrane filter elements which are combined to form a membrane package and are disposed within the membrane package parallel to and spaced apart from one another. A wall encloses the membrane package on all sides, and within which at least one inlet chamber which is connected to at least one inlet, and at least one outlet chamber which is connected to at least one outlet. An oscillation unit is connected to the membrane package and the wall to induce oscillation in a direction parallel to the membrane filter elements. The oscillation unit is connected to a frame which encloses the membrane package and which is connected to the wall of the membrane package by means of least one spring, whose main direction of spring action extends parallel to the plane of the membrane filter. | 08-01-2013 |
20130206694 | MEMBRANE FOR WATER PURIFICATION - A porous membrane can include a polyazole. | 08-15-2013 |
20130206695 | Combination Unit and Combination Method of Multiple Membrane Shells - The present invention discloses a combination unit and method of multiple membrane shells. The combination unit of multiple membrane shells is formed by bundling multiple membrane shells in parallel, wherein the raw water port and the concentrated water port of each of the membrane shells are respectively connected and sealed with the raw water port and the concentrated water port of the adjacent membrane shells to form the shared raw water port and the shared concentrated water port which are respectively connected with the raw water pipeline and the concentrated water pipeline. Since each of the combination units of multiple membrane shells is provided with the shared raw water port and the shared concentrated water port, it is adequate to finish the assembly of the shared raw water port with the pipeline and the assembly of the shared concentrated water port with the pipeline in the engineering installation. The combination unit of multiple membrane shells can be placed horizontally or vertically. By adopting the technology of the combination unit of multiple membrane shells, there does not need a large number of clamps, the number of sealed points is decreased, the engineering cost is reduced, the hidden seepage danger is lowered, the engineering installation workload is lessened, the occupied area of the apparatus is saved, and the maintenance and the service are convenient. | 08-15-2013 |
20130213892 | METHOD AND CONTROL DEVICES FOR PRODUCTION OF CONSISTENT WATER QUALITY FROM MEMBRANE-BASED WATER TREATMENT FOR USE IN IMPROVED HYDROCARBON RECOVERY OPERATIONS - A method for treating water including intaking a first amount of water from a first source into a plurality of treatment blocks, treating the first amount of water, outputting aqueous treated water streams from each of the plurality of treatment blocks, separating the aqueous treated water streams from each of the plurality of treatment blocks into aqueous permeate streams and concentrate reject streams, monitoring each of the aqueous permeate streams, controlling the operation of at least one of the plurality of treatment blocks based on predefined water-characteristic tolerances that fall within a predetermined concentration range based on the different qualities of the aqueous permeate streams, outputting a product water stream into an injection water reservoir or blend point, the product water stream including the aqueous permeate stream, intaking a second amount of water from a second source, treating the second amount of water, and discharging the dischargeable water stream. | 08-22-2013 |
20130228518 | SEPARATION MEMBRANE MODULE AND FLUID SEPARATION METHOD - A separation membrane module and fluid separation method are disclosed. A plurality of tubes are arranged in a body. A first chamber on a first fixed plate at an opposite side where the tubes are attached, comprising a plurality of rooms divided by at least one divider. A second chamber on a second fixed plate at an opposite side where the tubes are attached, comprising a plurality of rooms divided by at least one divider. The tubes are connected in series in terms of fluid path. A operation in which mixed fluid containing two or more types of fluid that flows into one of the rooms within one of chambers flows within one of the tubes, flows into one of the rooms within another chamber, and flows into another of the tubes by way of one of the rooms within the another chamber is repeatedly carried out. | 09-05-2013 |
20130228519 | MICROPOROUS MATERIAL HAVING FILTRATION AND ADSORPTION PROPERTIES AND THEIR USE IN FLUID PURIFICATION PROCESSES - The present invention is directed to ultrafiltration membranes comprising a microporous material, said microporous material comprising:
| 09-05-2013 |
20130228520 | POLYMER COATINGS THAT RESIST ADSORPTION OF PROTEINS - The invention provides membranes useful for filtration of water and other liquids. The membrane may be a composite membrane having a polymer layer incorporating quaternary phosphonium or ammonium groups. The polymer layer may be resistant to protein adsorption in an aqueous environment. The membrane may also be a surface-modified membrane in which a polymer having quaternary phosphonium or ammonium groups is covalently attached to the membrane surface. Methods for making and using the membranes of the invention are also provided. | 09-05-2013 |
20130233799 | FILTRATION MODULE - The present invention provides a filtration module having at least one membrane layer and a spacer layer, wherein the spacer includes: a polymeric matrix; and a biocide physically embedded into or attached to the polymeric matrix. Moreover, the invention provides a method for reducing the concentration of bacteria in water, by contacting water with the filtration module. | 09-12-2013 |
20130233800 | LOW CONCENTRATION WASTEWATER TREATMENT SYSTEM AND PROCESS - A low concentration wastewater treatment system is provided that includes a high flux adsorbent material treatment system integrated with a low flux adsorbent material biological regeneration reactor. The high flux adsorbent material treatment system includes one or more unit operations for mixing low concentration wastewater with adsorbent material that is fresh, recycled, or a combination of both, and for decanting a liquid effluent having a reduced level of contaminants. The adsorbent material with adsorbed contaminants is regenerated in a low flux adsorbent material biological regeneration reactor in which a biological reaction occurs, such as biological oxidation, wherein organic contaminants in the wastewater are metabolized generally into carbon dioxide and water. Excess biomass is removed from the adsorbent material, and the thus-regenerated adsorbent material is recycled to the high flux adsorbent material treatment system. | 09-12-2013 |
20130240445 | POLYPHENOL-TYPE POLYMER COATING OF FILTRATION MEMBRANES - A filtration membrane is coated with a polymer made from a compound comprising a benzenediol or a substituted phenol, such as catechol. The polymer deposition process comprises exposing the membrane to the compound in an aqueous alkaline solution. A membrane module may be immersed in the solution. Optionally, the solution is aerated. The polymer coating is reasonably durable in aqueous environments but may be removable. In an example, a module of PVDF based outside-in hollow fiber membranes was coated with poly(catechol). The membranes had a reduced fouling rate and could be maintenance cleaned with water or a dilute oxidant solution. The polycatechol coating could be oxidized by cleaning the membrane with a hypochlorite solution and re-coated. The modified membranes may be used, for example, in water or wastewater treatment. A filtration process includes steps of oxidizing and re-applying the coating after the membrane has been in use. | 09-19-2013 |
20130240446 | METHODS OF OPERATING A MEMBRANE SEPARATION DEVICE, CONTROL DEVICES FOR A MEMBRANE SEPARATION DEVICE AND DEVICES THAT OPERATE A MEMBRANE SEPARATION DEVICE - A method of operating a membrane separation device in a continuous flow process includes in the membrane separation device, separating a supply liquid into a first partial stream and a second partial stream, wherein flow rate of the second partial stream and/or recovery rate of the second partial stream is influenced by at least one influencing variable that varies during operation, and varying the flow rate of the first partial stream to compensate for a change of the at least one influencing variable to control flow rate and/or recovery rate of the second partial stream to a preset value. | 09-19-2013 |
20130248450 | RECIRCULATING FLUID FILTRATION SYSTEM - A fluid filtration system comprising a cross-flow filter is arranged to permit a first pump to recirculate part of the retentate of the filter to the inlet of the cross-flow filter and a second pump to return part of the permeate to the inlet of the cross-flow filter. A third pump is configured supply source fluid to the inlet of the filter. The flow path between the second pump and the cross-flow filter inlet may include an adsorption filter that may selectively remove contaminants, toxins, or pathogens in the permeate. A controller may control the first, second and third pumps to provide predetermined flow ratios among the fluid flow paths of the system in order to achieve a desired filtration level. This system may be applicable to the removal of harmful substances from blood, by first separating the plasma from the blood and then removing harmful substances from the plasma. | 09-26-2013 |
20130256229 | LARGE PORE POLYMERIC MEMBRANE - Porous membranes including a first microporous skin surface having a pore density of at least about 20 pores/50,000 μm | 10-03-2013 |
20130256230 | MEMBRANE SUITABLE FOR BLOOD FILTRATION - The invention relates to a membrane construction comprising multiple layers wherein at least one of the layers is a nanoweb made of polymeric nanofibers, wherein the mean flow pore size of the nanoweb is in the range from 50 nm to 5 μm, wherein the number average diameter of the nanofibers is in the range from 100 to 600 nm, wherein the basis weight of the nanoweb is in the range from 1 to 20 g/m | 10-03-2013 |
20130264288 | System and Method For Collecting And Treating Plasma Protein Fractions - Method and apparatus for separating plasma from blood in a separation vessel, separating the separated plasma into desired plasma proteins in a plasma separator fluidly connected to the separation vessel to receive the separated plasma, and adding photosensitizer to the desired plasma proteins for viral inactivation treatment of such proteins. | 10-10-2013 |
20130270188 | GRAPHENE BASED FILTER - Two-dimensional material based filters, their method of manufacture, and their use are disclosed. The filters may include at least one active layer disposed on a porous substrate. The at least one active layer may include intrinsic and/or intentional formed pores. In some embodiments, the flow resistance of the porous substrate may be selected to limit flow through defects and intrinsic pores in the at least one active layer. | 10-17-2013 |
20130277309 | MEMBRANE FILTRATION DEVICE AND OPERATING METHOD FOR MEMBRANE FILTRATION DEVICE - The purpose of the present invention is to provide a membrane filtration device able to supply electric power to a sensor under various conditions, including situations in which a plant is not operating. The membrane filtration device of the present invention comprises a membrane element for generating a permeate by filtering a liquid to be filtered through a filtration membrane, and includes a pressure-resistant container for containing the membrane element, a sensor for sensing the properties of the liquid flowing through the membrane filtration device, an electric-power-generating unit for generating electric power, and a primary battery. The sensor, the electric-power-generating unit, and the primary battery are provided inside the pressure-resistant container. | 10-24-2013 |
20130284672 | CROSS-LINKING METHOD AND ARTICLES PRODUCED THEREBY - A method for cross-linking a styrenic polymer, the method comprising providing a partly sulphonated styrenic polymer and cross-linking the partly sulphonated styrenic polymer in the presence of a polyphosphoric acid. | 10-31-2013 |
20130292332 | Device and Method for Filtering a Suspension - Method for filtering a suspension consisting of a fluid and cell or solid particles, wherein the suspension is guided at least through a curved capillary tube of a filter and passes at least partially through a porous filter wall of the curved capillary tube in order to separate the fluid from the cell or solid particles, wherein the curvature of the capillary tube has a predetermined radius of curvature which is suitable for specifically preventing an accumulation of cell or solid particles of the suspension on an inner curvature edge of the capillary tube. | 11-07-2013 |
20130299428 | ANTIMICROBIAL MEMBRANE CONTAINING SILVER NANOPARTICLES - The invention is directed to an antimicrobial membrane, to a method for preparing said antimicrobial membrane, to a process of operating said antimicrobial membrane, and to uses of said antimicrobial membrane. | 11-14-2013 |
20130306560 | PVDF MEMBRANES HAVING A SUPERHYDROPHOBIC SURFACE - The present invention relates to the field of hydrophobic solid surfaces, and more particularly to polyvinylidene fluoride (PIMP) membranes having a superhydrophobic surface. The invention also relates to the process for preparing these membranes and also to the industrial applications thereof. The PVDF membranes according to the invention comprise a superhydrophobic surface comprising a structure that is porous on the nanometer scale and interconnected crystalline nodules of micrometer size.” | 11-21-2013 |
20130313193 | METAL-ORGANIC FRAMEWORK SUPPORTED ON POROUS POLYMER - The growth of continuous MOF membranes on porous polymeric supports is reported, wherein a dip-coating procedure is used to deposit a layer of seed MOF nanocrystals on the surfaces of porous polymers, preferably in the form of hollow fibers, and polycrystalline MOF membranes are subsequently grown at temperatures as low as 65° C. from precursor solutions. The present work opens the road to inexpensive and scalable fabrication of MOF membranes for large-scale separation applications. | 11-28-2013 |
20130313194 | METHOD OF OPTIMIZING CLEARANCE FOR PROTEIN-BOUND MOLECULES USING CASCADE FILTRATION THERAPY - A method of removing unwanted molecules from blood includes (i) directing a flow of blood from a patient through a first hemofilter, (ii) removing a volume of fluid from the blood using the first hemofilter, (iii) combining a volume of first substitution fluid with an outflow from the first hemofilter, the volume of first substitution fluid being substantially equal to the volume of fluid removed from the blood using the first hemofilter, (iv) directing the combined first hemofilter outflow and the first substitution fluid volume from the first hemofilter through a second hemofilter, (v) combining a second substitution fluid with outflow from the second hemofilter, and (vi) returning the combined second hemofilter outflow and the second substitution fluid volume from the second hemofilter to the patient. | 11-28-2013 |
20130319944 | PNEUMATIC ALTERNATING PRESSURE MEMBRANE CELL SEPARATION SYSTEM - Provided are filtration systems that can be referred to as Pneumatic Alternating Cell Separator (PACS), useful components thereof in the form of assemblies or kits of parts that can be used to build the system, and use of the system for filtering fluids, for instance, in cell culture perfusion systems comprising a filter-containing chamber, an expansion chamber and a gas flow controller. | 12-05-2013 |
20130334139 | MEMBRANE SEPARATION DEVICES, SYSTEMS AND METHODS EMPLOYING SAME, AND DATA MANAGEMENT SYSTEMS AND METHODS - A membrane separation device is disclosed along with systems and methods employing the device in blood processing procedures. In one embodiment, a spinning membrane separator is provided in which at least two zones or regions are created in the gap between the membrane and the shell, such that mixing of the fluid between the two regions is inhibited by a radial rib associated with the membrane that decreases the gap between the membrane and the shell to define two fluid regions, the ridge isolating the fluid in the two regions to minimize mixing between the two. Automated systems and methods are disclosed for separating a unit of previously collected whole blood into components, such as concentrated red cells and plasma, for collecting red cells and plasma directly from a donor in a single pass, and for cell washing. Data management systems and methods and priming methods are also disclosed. | 12-19-2013 |
20130341275 | MEMBRANE SEPARATION DEVICES, SYSTEMS AND METHODS EMPLOYING SAME, AND DATA MANAGEMENT SYSTEMS AND METHODS - A membrane separation device is disclosed along with systems and methods employing the device in blood processing procedures. In one embodiment, a spinning membrane separator is provided in which at least two zones or regions are created in the gap between the membrane and the shell, such that mixing of the fluid between the two regions is inhibited by a radial rib associated with the membrane that decreases the gap between the membrane and the shell to define two fluid regions, the ridge isolating the fluid in the two regions to minimize mixing between the two. Automated systems and methods are disclosed for separating a unit of previously collected whole blood into components, such as concentrated red cells and plasma, for collecting red cells and plasma directly from a donor in a single pass, and for cell washing. Data management systems and methods and priming methods are also disclosed. | 12-26-2013 |
20140021132 | WATER TREATMENT APPARATUS WITH CIRCULATING FLOW PATH AND WATER TREATMENT METHOD USING THE SAME - A water treatment apparatus and a water treatment method using the same are provided. The water treatment apparatus includes a cohesive agent input device configured to input a cohesive agent to raw water, a membrane filtering device, a raw water pump configured to transfer raw water including the cohesive agent therein to the membrane filtering device, a water supply flow path connecting a discharge side of the raw water pump to the inlet of the membrane filtering device, a circulation flow path connecting the raw water discharge opening of the membrane filtering device to the water supply flow path and a circulation pump provided in the circulation flow path to transfer discharged raw water to the water supply flow path. | 01-23-2014 |
20140021133 | APPARATUS AND METHOD FOR NANOPOROUS INORGANIC MEMBRANES AND FILMS, METHODS OF MAKING AND USAGE THEREOF - A method for fabricating isolated pores in an inorganic membrane includes the steps of patterning the inorganic membrane to selectively expose a portion of the membrane, forming a plurality of tracks of material damage in the exposed portion of the inorganic membrane by irradiation with energetic ions, and chemically etching the track damaged material to define the pores through the inorganic membrane with a predetermined geometrically defined cross sectional shape and with a controlled diameter range from less than 1 nanometer and up to micrometer scale. | 01-23-2014 |
20140042093 | ROTARY VACUUM-DRUM FILTER WITH MEMBRANE FILTER - A system for separating a penetrant from a feed steam, using a drum filter [ | 02-13-2014 |
20140042094 | Filtering Blood - An independent blood filter device depends on flow geometry to deliver blood serum or plasma free of detrimental levels of hemoglobin. It depends critically on an upstream flow rate or pressure differential limiting control element or device that limits the rate of change of pressure differential across the filter element. Pre-evacuated versions can be used to simultaneously draw blood from a living being and provide pressure differential across the filter element between an evacuated collector and a supply end open to atmosphere. A unit pressurized by hand motion employs the external shape of a partially filled blood collection tube as a piston to produce pressure in advance of the control element or device to create the pressure differential across the filter element to a collector vented to atmosphere. The control element or device is disclosed in numerous forms, including specially sized flow constrictions and compliant arrangements. | 02-13-2014 |
20140042095 | NANOSIEVE COMPOSITE MEMBRANE - The invention is directed to a nanosieve composite membrane, a method for preparing a nanosieve composite membrane, a roll-to-roll apparatus for carrying out the method, and a method for separating a feed flow with particulate matter. The nanosieve composite of the invention comprises an inorganic nanosieve layer supported on a porous polymer membrane substrate and a metallic adhesion layer or underlayer between the inorganic nanosieve layer and the polymer substrate, wherein said polymer membrane comprises an inorganic coating such that the polymeric support is sandwiched between the inorganic coating and the inorganic sieve layer, and wherein said inorganic nanosieve layer has an average pore diameter as determined by scanning electron microscopy of 200 nm or less. | 02-13-2014 |
20140048486 | MEMBRANE WITH MULTIPLE SIZE FIBERS - Membranes including at least two sets of fibers having different average diameters, as well as methods of using and methods of making the membranes are disclosed. | 02-20-2014 |
20140048487 | FILTRATION MEMBRANE - A filtration membrane ( | 02-20-2014 |
20140054226 | APPARATUS AND METHOD FOR REMOVING FINELY DIVIDED SOLIDS FROM A LIQUID FLOW - Apparatus ( | 02-27-2014 |
20140069867 | Floating Wicks For Slurry Consolidation - Systems and methods for remediating an initially liquid-like slurry pond include distributing one or more floating wicks into the slurry pond, wherein the slurry pond includes a slurry with a supernatant level above the slurry. A method also includes placing a load on the slurry, wherein the load causes an effective stress on the slurry and aids in dewatering the slurry. | 03-13-2014 |
20140069868 | Methods for Automated Blood Prime - A method is disclosed for priming a kit for use in a therapeutic apheresis procedure with previously-collected blood prior to flowing the patient's whole blood into the inlet line of the kit, as part of a procedure in which a selected blood component is separated from a patient's whole blood, and replaced with a previously-collected blood component. The operator enters into the controller of the separation device the hematocrit value of the previously-collected blood. Then, in response to prompts by the controller, the operator enters a target hematocrit value for the previously-collected blood and an identification of the portion of the kit to be primed. The identified portion of the kit is automatically primed with the previously-collected blood. The patient is then connected to the inlet line of the kit in response to a prompt from the controller and the therapeutic procedure is commenced. | 03-13-2014 |
20140069869 | CROSS FLOW FILTRATION SYSTEM USING ATMOSPHERIC BLADDER TANK - A fluid treatment system is disclosed comprising a cross flow filter ( | 03-13-2014 |
20140116944 | SUPER-SURFACE SELECTIVE NANOMEMBRANES PROVIDING SIMULTANEOUS HIGH PERMEATION FLUX AND HIGH SELECTIVITY - Superhydrophobic membrane structures having a beneficial combination of throughput and a selectivity. Methods of making and using the membrane structures. | 05-01-2014 |
20140138314 | FLUORINATED ETHYLENE-PROPYLENE POLYMERIC MEMBRANES FOR GAS SEPARATIONS - A fluorinated ethylene-propylene polymeric membrane comprising a copolymer comprising 2,3,3,3-tetrafluoropropene and vinylidene fluoride is disclosed. The fluorinated ethylene-propylene polymeric membranes of the invention are especially useful in gas separation processes in air purification, petrochemical, refinery, and natural gas industries. | 05-22-2014 |
20140138315 | METHOD OF MAKING A WATER-STERILIZING POLYMERIC MEMBRANE - A water-sterilizing polymeric membrane is made from cotton fibers, conductive polyaniline and silver nanostructures. In a first, two-step method of making the membrane, cotton is coated with a conductive polyaniline polymer, and then silver nano structures are incorporated with the polyaniline-coated cotton by conformal or dip coating. The silver nanostructures may be in the form of silver nanoparticles, silver nanowires, silver flakes, combinations thereof, or the like. In a second, one-step approach, silver nanostructures are generated or synthesized in situ during the polymerization of aniline on the cotton fibers. In use, the membrane is used for a filter electrode by passing electrical current therethrough. Then, water to be sterilized is passed through the electrified matrix membrane, producing potable drinking water. The polyaniline, silver and electrical current all contribute to antimicrobial activity in the matrix membrane. | 05-22-2014 |
20140138316 | METHOD OF MAKING AND USING AN ELECTRICALLY CONDUCTIVE COMPOSITE MEMBRANE - The method of making and using an electrically conductive composite membrane provides for manufacturing of an electrically conductive composite membrane for water sterilization. The electrically conductive composite membrane is made by first dipping cotton fiber into a graphite solution to form a cotton-graphite composite fiber. The cotton-graphite composite fiber is then coated with different silver nanostructures to form a cotton-graphite-silver composite material. The cotton-graphite-silver composite material may then be dipped into a solution containing a conducting polymer, thus forming the electrically conductive composite membrane. In use, the electrically conductive composite membrane is electrified by passing electrical current therethrough. Then, water to be sterilized is passed through the electrified electrically conductive composite membrane, producing potable drinking water. | 05-22-2014 |
20140151303 | PROCESS FOR THE TREATMENT OF CONTAIMINATED WATER BY MEANS OF ADSORPTION AND NANOFILTRATION - A process for the treatment of water contaminated by polar and/or apolar organic compounds, and/or by heavy metal salts, and/or by oil dispersed or in emulsion, comprising sending said contaminated water to a system comprising: at least one adsorption ( | 06-05-2014 |
20140166580 | SEPARATION MATERIAL - A separation material includes a matrix that is bound to a saccharide, enabling the separation from a liquid of substances that selectively bind the saccharide. A method for preparing the separation material and a method for separating substances from a liquid that selectively bind a saccharide of the separation material are also described. A device employs the separation material for separating from a liquid substances that selectively bind to the saccharide of the separation material. | 06-19-2014 |
20140175013 | NANOFILTRATION MEMBRANE - The invention relates to a nanofiltration membrane having a porous support membrane, the surface of the support membrane being coated with polymer particles which are prepared by emulsion polymerization and which have an average particle diameter of less than 70 nm, preferably between 30-60 nm, more preferably between 40-50 nm. | 06-26-2014 |
20140175014 | WATER PURIFICATION DEVICE - A water purification device includes an expandable water collecting device having a variable volume, wherein at least part of the surface of the water collecting device includes a filter area, the filter area being permeable to water and allowing water to enter the water collecting device when the filter area is submerged in water. The device further includes a mechanically driven expansion means for exerting a force for increasing the volume of the water collecting device and thereby drawing water through the filter area into the water collecting device. In use, the water collecting device is submerged and the expansion means is released, drawing water into the water collecting device through the filter membrane. | 06-26-2014 |
20140183135 | NANOSIEVE COMPOSITE MEMBRANE - The invention is directed to a nanosieve composite membrane, a method for preparing a nanosieve composite membrane, a roll-to-roll apparatus for carrying out the method, and a method for separating a feed flow with particulate matter. The nanosieve composite of the invention comprises an inorganic nanosieve layer supported on a porous polymer membrane substrate and a metallic adhesion layer or underlayer between the inorganic nanosieve layer and the polymer substrate, wherein said polymer membrane comprises an inorganic coating such that the polymeric support is sandwiched between the inorganic coating and the inorganic sieve layer, and wherein said inorganic nanosieve layer has an average pore diameter as determined by scanning electron microscopy of 200 nm or less. | 07-03-2014 |
20140209538 | METHOD FOR MANIPULATING A MEMBRANE ELEMENT WITHIN A PRESSURE VESSEL - Provided is a method for manipulating a membrane element within a pressure vessel including a central axis, a distal end, a proximal end and an inlet disposed at the proximal end. The membrane element has a membrane element front face with at least one fluid opening and a membrane element rear face. The membrane element is received within the pressure vessel such that the membrane element front face faces the proximal end, with a possibility to be moved along the central axis by an axial force applied to the membrane element front face. The method includes disposing a fluid-tight element in the pressure vessel to form a fluid chamber at the proximal end between the inlet and the fluid-tight element, and introducing fluid into the fluid chamber to displace the membrane element along the central axis in the direction towards the distal end of the pressure vessel. | 07-31-2014 |
20140231349 | Isolation valve - Systems and methods for isolating a filtration module are provided. The systems and methods may utilize a removable end cap comprising an isolation valve. In certain systems and methods, the isolation valve may be configured to selectively allow fluid communication between a port and a filtrate passageway of one filtration module in a plurality of filtration modules. | 08-21-2014 |
20140238939 | IMMOBILIZATION OF ANTIMICROBIAL POLYMERS ON RO MEMBRANE TO REDUCE BIOFILM GROWTH AND BIOFOULING - The present invention discloses antimicrobial water treatment membranes, comprising a water treatment membrane, covalently attached to one or more antimicrobial polymers or derivatives thereof, either directly or via one or more tether molecules. There are also provided a process for preparing these antimicrobial membranes, and uses thereof in water treatment applications. | 08-28-2014 |
20140238940 | Single Stage Filtration System and Method For Use with Blood Processing Systems - A reservoir for use with a blood collection system includes a housing defining a cavity and a single stage filter. The housing has an inlet for receiving fluid from a source and an outlet. The inlet is in fluid communication with the cavity. The single stage filter includes a filter membrane configured to filter the fluid entering the housing from the inlet, and a frame defining the structure of the single stage filter. The frame also supports the filter membrane within the housing, and has a wiper edge that seals against an inner wall of the housing. | 08-28-2014 |
20140263065 | Method Of Controlling Blood Reservoir Volume And Flow In An Extracorporeal Blood Circulation System - A method comprising recirculating a patient's blood as a fluid through an extracorporeal circuit having a venous cannula line for fluid flow from the patient to an oxygenator and an arterial cannula line for fluid flow from the oxygenator to the patient; and adjusting the volume of fluid flow from the venous cannula line to the arterial cannula line by selectively redirecting fluid flow between the venous cannula line and the arterial cannula line into or out of a closed accumulator blood bag of substantially transparent, bio-compatible material, having a selectively open and closable accumulator inlet line from the venous cannula, and a selectively open and closable accumulator outlet line to the oxygenator. | 09-18-2014 |
20140311979 | Device and Method for Producing Sterile Water by Means of a Cross-Flow Liquid Sterile Filter - The aim of the invention is to provide a device and a method for producing sterile water by means of a cross-flow liquid sterile filter without the closure of the water line during the filtration process, said closure being bacteria-tight according to the prior art of point-of-use potable-water sterile filtration, and without the negative consequences associated with said closure. Said aim is achieved according to the invention by the simultaneous, continuous discharge of the germ-containing retentate from the cross-flow liquid sterile filter during the filtration and the disinfection thereof in a disinfecting apparatus. The result of the interaction of all components according to the invention is therefore a device and a method by means of which sterile and endotoxin-poor water can be produced without bacteriological closure of the water line, without interruption of the filtration at short intervals, and with maximum hygienic safety and which thus no longer have all the stated disadvantages of the POU sterile filters described according to the prior art and used in practice. | 10-23-2014 |
20140332468 | AQUAPORIN BASED THIN FILM COMPOSITE MEMBRANES - Present invention relates to a thin film composite membrane wherein a thin selective layer, having incorporated amphiphilic vesicles, is supported by a microporous substrate. A process of preparing the thin film composite membrane and its use are also disclosed. | 11-13-2014 |
20140339164 | HIGH THROUGHPUT MEMBRANE - Membranes having first and second porous portions, wherein the first portion has a more open pore structure than the second portion, wherein the first porous portion includes pores prepared by removing introduced particles, as well as methods of making and using the membranes, are disclosed. | 11-20-2014 |
20140339165 | HIGH THROUGHPUT MEMBRANE WITH ROUGH SURFACE - Membranes having a single layer comprising first and second porous portions, wherein the first portion has a more open pore structure than the second portion, wherein the first porous portion includes a surface prepared by removing introduced particles, as well as methods of making and using the membranes, are disclosed | 11-20-2014 |
20140339166 | HIGH THROUGHPUT MEMBRANE WITH CHANNELS - Membranes having first and second porous portions, wherein the first portion has a more open pore structure than the second portion, wherein the first porous portion includes channels prepared by removing introduced fibers, as well as methods of making and using the membranes, are disclosed. | 11-20-2014 |
20140339167 | 1234YF- AND 1234ZE-BASED POLYMERIC MEMBRANE MATERIALS, MEMBRANE PREPARATIONS AND USES THEREOF - The present invention generally relates to polymeric membrane materials formed, at least in part, from monomeric material selected from 2,3,3,3-tetrafluoropropene (CF | 11-20-2014 |
20140346112 | DIATOMACEOUS EARTH PRODUCTS, PROCESSES FOR PREPARING THEM, AND METHODS OF THEIR USE - A particulate material includes agglomerated diatomaceous earth and a silicone binder. A process for preparing a diatomaceous earth product includes agglomerating at least one natural diatomaceous earth with at least one silicone material, and subjecting the agglomerated diatomaceous earth to at least one heat treatment at a temperature ranging from about 600° C. to about 1,000° C. A filter aid composition includes a diatomaceous earth product including an agglomerated diatomaceous earth and a silicone material. A method of filtering at least one liquid includes passing the at least one liquid through at least one filter membrane including a diatomaceous earth product including agglomerated diatomaceous earth and a silicone material. | 11-27-2014 |
20140353254 | HIGH-DENSITY POLYDICYCLOPENTADIENE - The invention provides highly cross-linked polydicyclopentadiene matrices and methods for using such matrices to separate components having varying cross-sectional areas. | 12-04-2014 |
20140374354 | MEMBRANE AND METHOD FOR TREATING FLUIDS INCLUDING AN ORGANIC PHASE - Coated membranes for separating a discontinuous organic phase from a fluid mixture comprising the discontinuous organic phase and a continuous aqueous phase, devices including the membranes, and methods of using the membranes, are disclosed. | 12-25-2014 |
20140374355 | PRETREATMENT DEVICE FOR MEMBRANE SEPARATION, MEMBRANE SEPARATING SYSTEM AND MEMBRANE SEPARATING METHOD - There is disclosed a pretreatment device for membrane separation including a honeycomb structure having porous partition walls with which a plurality of cells extending from one end surface to the other end surface are formed to become through channels of a fluid, and a storage container in which the honeycomb structure is stored and which has an inflow port and an outflow port of the fluid, and the partition walls include an adsorbent as a main component, a membrane-like adsorbent is disposed on the surfaces of the partition walls, or the partition walls include the adsorbent as the main component and the membrane-like adsorbent is disposed on the surfaces of the partition walls. The pretreatment device for membrane separation is disclosed in which impurities in the fluid to be treated which influence (adversely affect) a separation membrane are efficiently adsorbed, to enable suppression of deterioration of the separation membrane. | 12-25-2014 |
20150008184 | Device For A Biological Liquid Treatment Installation - The invention concerns a device comprising a base ( | 01-08-2015 |
20150041395 | MICRO FLOW FILTRATION SYSTEM AND FLOW FILTRATION METHOD - A micro flow filtration system comprises a fluid circuitry ( | 02-12-2015 |
20150060362 | APPARATUS FOR EXTRACORPOREAL TREATMENT OF BLOOD - An apparatus for extracorporeal treatment of blood ( | 03-05-2015 |
20150083665 | MICRO FLOW FILTRATION SYSTEM AND FLOW FILTRATION METHOD FOR A FLUID SAMPLE - A flow filtration system ( | 03-26-2015 |
20150101987 | STACKED PLATE-SHAPED COMPOSITE MEMBRANE CARTRIDGE - A composite filter membrane cartridge, including a housing with a raw water inlet and a filtered water outlet is disclosed. The housing may be equipped with one or more filter layers, including a prefilter assembly and a second filter portion, wherein the prefilter is connected to the membrane filer either via a water line or by direct stacking. The prefilter assembly may include multiple layers comprising a carbon filter and polypropylene cotton filter, wherein the locations of the filters are interchangeable. The prefilter may include granular activated carbon situated between two portions of polypropylene cotton filter cloth. The perimeter of the activated carbon filter and polypropylene cotton filter may be substantially sealed around the inner wall of the housing providing a snug fit. The second filter portion of the composite filter membrane cartridge may include nanomembrane spiral wound filter. | 04-16-2015 |
20150129500 | METHOD AND APPARATUS FOR FILTERING AND SEPARATING FLOW MEDIA BY MEANS OF MEMBRANES - A method and an apparatus ( | 05-14-2015 |
20150136697 | OILY WATER SEPARATOR, OIL-WATER SEPARATING METHOD AND FILTRATION MEMBRANE UNIT - An oily water separator for removing oil from oil-containing water, including a vessel, a filtration membrane unit and a discharge mechanism;
| 05-21-2015 |
20150144559 | MEMBRANE SEPARATION DEVICE AND OPERATION METHOD FOR MEMBRANE SEPARATION DEVICE - A membrane separation device includes a separation membrane unit A that has a separation membrane unit component | 05-28-2015 |
20150144560 | SEPARATION MEMBRANE UNIT AND METHOD FOR USING THE SAME TO PRODUCE FRESH WATER - There is provided a separation membrane unit wherein a plurality of separation membrane subunits ( | 05-28-2015 |
20150144561 | BLOOD SEPARATION AND CONCENTRATION SYSTEM - This invention provides an apparatus and methods to consistently separate and concentrate selected blood components. The system includes, e.g., a computerized fluid handling system to transfer blood components between a centrifugal blood separation disc, containers and a concentrator. | 05-28-2015 |
20150298995 | FILTER AND METHOD OF ULTRAFILTRATION - A filter for ultrafiltration, which filter comprises a membrane pack having partially hydrophobic membranes. | 10-22-2015 |
20150306546 | METHOD FOR OBTAINING POROUS HOLLOW FIBERS HAVING MOLECULARLY IMPRINTED SPHERES EMBEDDED THEREIN AND MODULAR DEVICE FORMED BY THE RESULTING FIBERS - The invention relates to a method for obtaining porous hollow fibers having molecularly imprinted spheres embedded therein, said method comprising the steps of: simultaneously and independently injecting a doping solution and a pore-forming solution into an extrusion die; extruding or spinning porous hollow fibers; coagulating the porous hollow fibers that leave step (b) in an aqueous solution with an aqueous solution having a temperature between 15° C.-25° C.; winding the flexible porous hollow fibers coagulated in step (c); leaving them to dry and storing same under vacuum conditions. The resulting porous hollow fibers are used to form filtrating modules in which a plurality of fibers are disposed longitudinally and in parallel. The filtrating modules can be assembled together to form filtering devices intended, in a preferred example, for gradual blood purification and the subsequent qualitative and/or quantitative identification of the molecules retained in the first filter of each filtering module. The invention also relates to the operating method of the filtering device. | 10-29-2015 |
20150328588 | FILTRATION SYSTEMS AND MEMBRANES WITH ENHANCED FLUX AND METHOD FOR THEIR PREPARATION - Filtration system comprising at least one membrane, wherein at least one component or at least one part of a component of the filtration system has been obtained by a process comprising the following steps: A) treatment of a said component or part of a component with at least one organoborane-amine complex, B) treatment of a said component or part of a component with a composition comprising at least one radically polymerizable compound, C) optional treatment with a deblocking agent. | 11-19-2015 |
20150329398 | METHOD FOR TREATING ORGANIC LADEN PRODUCED WATER - An oil recovery process which utilizes chemical precipitation and complexation reactions to remove dissolved organics and silica from waste water streams. The process produces brine suitable for deep well injection and solids suitable for Class II landfill. The treatment process can be used in combination with a concentrator and in addition to producing brine suitable for deep well injection and solids suitable for Class II landfill, the concentrator also produces a clean water stream for reuse. By including a crystallizer for the brine processing the system has zero liquid discharge. | 11-19-2015 |
20150336823 | NUTRIENT RECOVERY METHODS AND USES THEREOF - Provided herein is an efficient solid-liquid separation method for bio-waste material treatment. The method contemplates the addition of certain cationic polyelectrolytes (or “polymers” as used herein) to the bio-waste materials prior to solid-liquid separation, such as centrifugation, thus greatly facilitate the subsequent solid-liquid separation step. The liquid portion, once separated from solid portion using the subject methods, can be subjected to further downstream nutrient recovery manipulations (such as phosphate precipitation and ammonia stripping) with potentially better efficiency, or may be used directly in a number of operations, such as a liquid diluent for feedstocks in an ethanol plant. | 11-26-2015 |
20150337253 | METHOD FOR REMOVING BACTERIAL CONTAMINANTS FROM SACCHARIFIED SOLUTION AND FERMENTATION SYSTEM - A method for removing bacterial contaminants from a saccharified solution capable of suppressing proliferation of bacterial contaminants in a fermentation tank without using an antibiotic in alcoholic fermentation of a biomass saccharified solution using normal yeast, and a fermentation system suited for conducting the method are provided. The method and system include drawing out a saccharified solution from a fermentation tank, conducting rough separation for recovering yeast from the solution, and conducting fine separation for removing bacterial contaminants from the solution, thereby removing only the contaminants while recovering yeast. The rough separation is through a filtering membrane having a pore size of 0.5 μm or more and 5 μm or less or centrifugal separation at 50G or higher and 500G or lower. The fine separation is through a filtering membrane having a pore size of 0.22 μm or less, or centrifugal separation at 1000G or higher and 15000G or lower. | 11-26-2015 |
20150367289 | FILTERING ARTICLE CONTAINING TITANIA NANOTUBES - Provided in one embodiment is a filtering article, comprising: powders comprising bundles of nanotubes, each bundle comprising hollow titania nanotubes. Embodiments of the methods of making and using the filtering articles are also provided. | 12-24-2015 |
20160001235 | Filtration membranes - A porous membrane constructed of a cast polymeric film with a face located adjacent to at least a portion of the surface of a nanofiber substrate fabric. The membrane is not formed by lamination of two independent layers one layer being the film and the other being the substrate fabric. | 01-07-2016 |
20160008763 | Improved Spiral Wound Element Construction | 01-14-2016 |
20160023167 | NANOCOMPOSITE WITH NANOCHANNELS OR NANOPORES FOR FILTRATION OF WASTE EFFLUENTS - The present invention includes a treatment system and methods for removing waste or other agents from a fluid stream, the system comprising: an inlet flow path for receiving a fluid stream from a source outside the treatment system; a vessel for containing the fluid stream, the vessel comprising a permeable filter configured for biological and physical treatment of the fluid stream, the filter comprising one or more nano-thin film or polymer composite layers of carbon materials assembled in sp2 hybridized structures comprising carbon-carbon bonds, wherein the waste or agent is removed as it flows through pores in the film composite; and a drain fluidly connected to the vessel for discharging treated fluid stream from the vessel from which the waste or agents have been removed. | 01-28-2016 |
20160023171 | MULTIBLOCK COPOLYMERS AND METHODS OF USE - The present invention relates to polymer compositions and their manufacture. Specifically, the invention relates to multiblock polymers and copolymers, their fabrication, modification and/or functionalization and use as membranes or films. | 01-28-2016 |
20160030891 | SINGLE-STAGE WATER TREATMENT SYSTEM - A single-stage water treatment system may include a fine filtration module configured for receiving process material with a high suspended and/or dissolved solids content and for producing a concentrate and a permeate. The fine filtration module may include an elongate housing member, a plurality of tubular membranes arranged within the elongate housing member and comprising elongate tubular members having membranous sidewalls with a selected permeability, a pair of end caps configured for controlling the flow of the process material within the plurality of tubular membranes, and an adjustment mechanism configured to adjust the elongation of the plurality of tubular membranes thereby adjusting the permeability thereof. | 02-04-2016 |
20160030893 | Nanocomposite Membranes - A membrane ( | 02-04-2016 |
20160030896 | COPOLYMER HAVING AMPHIPHILIC BLOCKS, AND USE THEREOF FOR MANUFACTURING POLYMER FILTRATION MEMBRANES - A copolymer having amphiphilic blocks includes at least one first hydrophilic block, obtainable from n-butyl acrylate and hydroxyethyl methacrylate monomers, and a second hydrophobic block likely to be obtained from a methyl methacrylate monomer. The copolymer is found to be particularly advantageous for use as an additive for manufacturing a polymer filtration membrane, particularly a PVDF membrane, particularly via a phase inversion method. | 02-04-2016 |
20160031726 | MEMBRANE FILTRATION SYSTEM WITH CONCENTRATE STAGING AND CONCENTRATE RECIRCULATION, SWITCHABLE STAGES, OR BOTH - A membrane filtration system with reverse osmosis (RO) or nanofiltration (NF) elements is adapted to provide high recovery from difficult wastewater. The system has a plurality of stages. The system is configured to provide concentrate staging. The last stage also has concentrate recirculation. The valves and pumps of the system are arranged such that the order of flow and a recirculation pump may be switched between the first stage and the last stage at some times. | 02-04-2016 |
20160052804 | POROUS MEMBRANE AND WATER PURIFIER - The present invention addresses the problem of providing a porous membrane for a water purification purpose, which can be used even under high water pressures and which has both virus-removing performance and water permeability. The problem can be solved as follows: a porous membrane is provided, wherein the average pore shorter-axis diameter in one surface is smaller than that in the other surface, and in a cross section of the membrane in the thickness direction, the pore diameters increase from one surface toward the other surface to have at least one maximum value and then decrease. The membrane has a layer which is provided on the side of the surface having a larger average pore shorter-axis diameter and which has pore diameters of 130 nm or less in the cross section of the membrane, wherein the layer has a thickness of 0.5 to 20 μm inclusive and the layer has pores each having a pore diameter of 100 to 130 nm inclusive. | 02-25-2016 |
20160053425 | WATER TREATMENT SYSTEM - This invention relates in general to a water treatment system and process for a continuous batch or “tunnel” washing machines. The water treatment system comprising; a continuous batch laundry system comprising a plurality of longitudinally aligned modules having inlet means at one end for receiving articles to be laundered and a discharge means at the other end, each said module including a rotatably supported drum within a housing, said drum being supported for oscillatory and rotary movement about a horizontal axis, wherein each drum includes spaced end walls, each end wall of each drum including a large opening to provide communication between adjacent drums, inlet flow lines on each module to allow chemicals and water into each module and outlet flow lines located on each module for draining each module, and a driving means for inducing rotation and oscillation in at least a selected one of said drums; a filtering apparatus connected between the outlet flow lines and the inlet flow lines of the continuous batch laundry system to filter and reclaim a mixture of water and chemicals drained from each module the filtering apparatus comprising: a filter; a flow apparatus operable to pass the mixture of water and chemicals through the filter in a forward direction so as to filter the water and chemicals: a heater operatively able to heat the mixture that pass through the filter; and a temperature controller operatively associated with the heater to control a temperature of the mixture within a preconfigured temperature range; wherein the filtered and reclaimed mixture of water and chemicals is fed from the filtering apparatus and into the inlet flow lines of each said module of the continuous batch laundry system as required. | 02-25-2016 |
20160074569 | Polymeric Whole Blood Hollow Fiber Membrane Filter Medium and Use Thereof For Separating Blood Plasma/Serum From Whole Blood - A whole blood hollow fiber membrane filter medium is made of a polymeric material having pores of a pore size that ensures permeability to blood plasma or serum but retains blood cells. The whole blood hollow fiber membrane filter medium is used for filtering a whole blood sample so that blood plasma or serum passes through the whole blood hollow fiber membrane filter medium and blood cells are retained. The obtained blood plasma shows no hemolysis. | 03-17-2016 |
20160074775 | CONTINUOUS CHROMATOGRAPHY METHOD AND SYSTEM - Continuous chromatography methods and systems are disclosed, wherein a tangential flow filtration device used in association with at least a first chromatography device and a second chromatography device, concentrate a product of interest, which improves sorbent utilization. | 03-17-2016 |
20160076353 | AN OIL FILTRATION SYSTEM FOR SUBSEA OIL-FILLED MACHINES - A subsea oil filtration system is described that forms a closed circuit with and is mounted on or connected to a subsea rotating machine. According to some embodiments, the oil filtration system enables the removal of dirt and/or water that has entered the barrier fluid/oil system whether it comes from the Hydraulic Pressure Unit (HPU), from the umbilical or from other parts of the oil contained lubrication and/or barrier fluid systems. | 03-17-2016 |
20160082174 | BLOOD FILTER AND METHOD FOR FILTERING BLOOD - The present invention relates to a method for filtering blood to produce plasma or serum and to a blood filter for the production of plasma or serum from a blood sample. The invention further relates to a kit comprising a blood filter for the production of plasma or serum from a blood sample and a syringe. | 03-24-2016 |
20160082393 | SEPARATION OF HOMOGENEOUS CATALYSTS BY MEANS OF A MEMBRANE SEPARATION UNIT UNDER CLOSED-LOOP CONTROL - The invention relates to a method for separating a homogeneous catalyst out of a reaction mixture by means of at least one membrane separation unit, in which method: the reaction mixture coming from a reaction zone and containing the homogeneous catalyst is applied as a feed to the membrane separation unit; the homogeneous catalyst is depleted in the permeate of the membrane separation unit and enriched in the retentate of the membrane separation unit; and the retentate of the membrane separation unit is recirculated into the reaction zone. The invention addresses the problem of specifying a method for separating homogeneous catalyst out of reaction mixtures that simplifies the feeding of fresh catalyst into the reaction zone and avoids disruptions to the hydrodynamics within the reaction zone when the volumetric flow of the reaction mixture output from the reaction zone varies. This problem is solved in that both the retentate volumetric flow of the membrane separation unit and the retention of the membrane separation unit are kept constant by regulation. | 03-24-2016 |
20160101994 | DEPTH EXPOSED MEMBRANE FOR WATER EXTRACTION - Systems and methods for the desalination of seawater and the purification of surface and groundwater are provided. The systems utilize the hydrostatic pressure of a natural or induced water column to filter water through a reverse osmosis, nanofiltration or other membrane, whereby a certain desired water quality or potable water is obtained. | 04-14-2016 |
20160114269 | FILTERING DEVICE, BALLAST WATER TREATMENT METHOD, AND BALLAST WATER TREATMENT APPARATUS USING THE SAME - A filtering device includes, as a filter membrane, a pleated filter formed of a filter base having folds so as to repeat peak portions and valley portions, the pleated filter having a shape of a cylinder whose axial direction is a ridge line direction of the folds. In the filtering device, the pleated filter is rotatable about a cylindrical axis of the shape of the cylinder. The filtering device includes a nozzle that is provided so as to face an outer circumferential surface of the pleated filter and that ejects a liquid toward the outer circumferential surface. The relationships 4p≦W, and h/5≦L≦h/2 are satisfied, where p represents a spacing between pleats and h represents a length in the ridge line direction, the length being effective for filtration, in the folds on the outer circumferential side of the pleated filter, and W represents an opening width in a direction perpendicular to the ridge line direction and L represents an opening length in the ridge line direction in an opening portion of the nozzle. | 04-28-2016 |
20160114293 | Device and Method For Filtering A Suspension - Method for filtering a suspension consisting of a fluid and cell or solid particles, wherein the suspension is guided at least through a curved capillary tube of a filter and passes at least partially through a porous filter wall of the curved capillary tube in order to separate the fluid from the cell or solid particles, wherein the curvature of the capillary tube has a predetermined radius of curvature which is suitable for specifically preventing an accumulation of cell or solid particles of the suspension on an inner curvature edge of the capillary tube. | 04-28-2016 |
20160114296 | IMPROVED MEMBRANES - Membrane comprising a block copolymer comprising polyarylene ether blocks and polyalkylene oxide blocks, wherein said polyalkylene oxide blocks comprise at least one polyethylene oxide segment and at least one segment of at least one polyalkylene oxide that is different from polyethylene oxide | 04-28-2016 |
20160115286 | HYDROPHILIC FLUOROPLASTIC SUBSTRATES - Hydrophilic fluoroplastic substrates and methods of making hydrophilic fluoroplastic substrates from 4-acryloylmorpholine are disclosed. | 04-28-2016 |
20160121272 | INORGANIC MEMBRANE FILTER AND METHODS THEREOF - A membrane filter article including:
| 05-05-2016 |
20160129400 | SUPERHYDROPHILIC AND OLEOPHOBIC POROUS MATERIALS AND METHODS FOR MAKING AND USING THE SAME - The present disclosure provides a porous material having a surface that is concurrently both superhydrophilic (having a first apparent advancing dynamic contact angle of less than or equal to about 5° for water) and oleophobic (having a second apparent advancing dynamic contact angle of greater than or equal to about 90°) or superoleophobic (a second apparent advancing dynamic contact angle of greater than or equal to about 150° for oil). Such materials can be used in a separator device to separate a liquid-liquid mixture of immiscible components (e.g., oil and water) or miscible components (e.g., alcohols). Separation apparatus incorporating such materials and methods of making and using these materials are also provided. | 05-12-2016 |
20160130163 | INSTALLATION FOR THE PREPARATION OF A SOLUTION OF CALCIUM HYDROGEN CARBONATE SUITABLE FOR THE REMINERALIZATION OF WATER - The invention relates to an installation for the preparation of a solution of calcium hydrogen carbonate and the use of such an installation for the continuous preparation of a solution of calcium hydrogen carbonate as well as the use of such an installation for the remineralization of water. | 05-12-2016 |
20160136582 | Ceramic Hollow Fibre Membranes with Improved Mechanical Properties - A method for the manufacture of ceramic hollow fiber membranes in a spinning process by using a spinning mass, comprising the steps: providing a spinning mass formulation; providing a secondary phase; adding the secondary phase to the spinning mass formulation; manufacturing the ceramic hollow fiber membranes in a spinning process. | 05-19-2016 |
20160144303 | PLEATED FILTER, BALLAST WATER TREATMENT APPARATUS, AND BALLAST WATER TREATMENT METHOD USING THE SAME - A pleated filter cartridge includes a pleated filter formed of a filter base having folds that repeatedly form peak portions and valley portions, the pleated filter having a shape of a cylinder whose axial direction is a ridge line direction of the folds, and lid portions disposed on an upper bottom and a lower bottom of the pleated filter. Reinforcing members whose top and bottom are fixed in the lid portions are provided in the valley portions viewed from the outside of the shape of the cylinder. | 05-26-2016 |
20160158425 | APPARATUS FOR BLOOD CONCENTRATION - A disposable blood transfer conduit is used in association with a pump drive unit, a blood collection vessel and a blood concentration device. The blood transfer conduit comprises a blood transfer tube ( | 06-09-2016 |
20160158706 | MICRO-AND/OR NANO-SCALE PATTERNED POROUS MEMBRANES, METHODS OF MAKING MEMBRANES, AND METHODS OF USING MEMBRANES - Embodiments of the present disclosure provide for materials that include a pre-designed patterned, porous membrane (e.g., micro- and/or nano-scale patterned), structures or devices that include a pre-designed patterned, porous membrane, methods of making pre-designed patterned, porous membranes, methods of separation, and the like. | 06-09-2016 |
20160250596 | MODULATION OF ION TRANSPORT IN A LIQUID BY APPLICATION OF AN ELECTRIC POTENTIAL ON A MESOPOROUS CARBON MEMBRANE | 09-01-2016 |
20160375385 | METHOD FOR PREPARING A POROUS FLUOROPOLYMER AND PREPARING AN ARTICLE OF SAME - A method of controlling a flow of fluid comprises providing a porous article, the porous article comprising a fluoropolymer and a plurality of pores formed by removing a removable additive, a portion of the pores being connected and establishing fluid flow paths through the article; flowing a fluid through the plurality of pores of the porous article; the fluid comprising a first component having a surface energy less than 40 milliNewton per meter at 25° C. and a second component having a surface energy greater than 40 mN/m at 25° C.; wherein the fluoropolymer is selected such that the first component of the fluid has a better wettability with the fluoropolymer than the second component of the fluid. | 12-29-2016 |
20160375409 | SELF-WETTING POROUS MEMBRANES (I) - Disclosed is a self-wetting porous membrane comprising an aromatic hydrophobic polymer such as polysulfone and a wetting agent comprising a copolymer of formula A-B or A-B-A, wherein A is a hydrophilic segment comprising a polymerized monomer of the formula (I): CH | 12-29-2016 |
20170232388 | OSMOTICALLY ATTAINED HIGH QUALITY BOILER MAKE-UP WATER | 08-17-2017 |
20170232399 | PROCESS FOR MANUFACTURING A FLUIDIC ELEMENT AND FLUIDIC ELEMENT MANUFACTURED USING SAID PROCESS | 08-17-2017 |