Entries |
Document | Title | Date |
20080203030 | Method of Extracting Organic Chemicals from Water or Air Using Polar Polyurethane as a Solid Extraction Medium - A method of extracting sparingly soluble organic contaminants from a water or gas stream is provided. Contaminants are removed from a contaminant stream by passing the stream through hydrophilic polyurethane or a composite comprising an open cell hydrophobic polyurethane foam having a plurality of surfaces defining a plurality of pores which have disposed thereon a coating of a substantially open cell hydrophilic polyurethane foam. The hydrophilic polyurethane or composite may then be regenerated when saturated with contaminant. | 08-28-2008 |
20080245739 | TREATMENT METHOD OF ORGANIC COMPOUNDS INCLUDED IN WASTE WATER, A TREATMENT APPARATUS OF ORGANIC COMPOUNDS INCLUDED IN WASTE WATER, A TREATMENT SYSTEM OF ORGANIC COMPOUNDS INCLUDED IN WASTE WATER, AND A BITUMEN COLLECTING SYSTEM - A treatment method of organic compounds included in waste water, comprising the steps of: | 10-09-2008 |
20090057230 | Method and system for removing inpurities from a urea solution - A method of removing impurities from a urea solution comprising contacting the aqueous solution with an ion exchange resin and adsorbing the impurities from the urea solution, and the system therefore. | 03-05-2009 |
20090255875 | IMPROVEMENTS IN REGENERATION OF SULFUR SORBENTS - Exemplary embodiments of the present invention relate to a fuel filter, system, and method for reduction, manipulation and/or distribution of sulfur containing compounds in a fuel stream of an internal combustion engine. In one exemplary embodiment of the present invention, a method of removing sulfur containing compounds from a fuel stream of an internal combustion engine is provided. The method includes removing sulfur containing compounds from a fuel stream by passing fuel through a fuel filter capable of removing sulfur containing compounds. The method also includes storing the sulfur containing compounds in the fuel filter and releasing portions of the stored sulfur containing compounds into the fuel stream at predetermined intervals of a regeneration cycle of an emission control device. | 10-15-2009 |
20090266765 | Methods for Recharging Nanoparticle-Treated Beds - Nanoparticle-treated particle packs, such as sand beds, may effectively filter and purify liquids such as waste water. Proppant beds treated with nanoparticles may fixate or reduce fines migration therethrough. When tiny contaminant particles or fines in these fluids flow through the nanoparticle-treated bed or pack, the nanoparticles will capture and hold the tiny contaminant or fines particles within the pack due to the nanoparticles' surface forces, including, but not necessarily limited to van der Waals and electrostatic forces. Nanoparticle-treated beds or packs may be recharged by contacting the bed with an inorganic acid (but not hydrofluoric acid) or an organic acid, and optionally followed by subsequent treatment with hydrofluoric acid. This treating substantially removes the nanoparticles and the fine particulates that have been removed from a fluid (e.g. wastewater being treated, produced fluids in a formation, etc.). The particle pack may then be re-treated or recharged with nanoparticles. | 10-29-2009 |
20090289012 | SYSTEM AND METHOD FOR RECYCLING USING NANOCERAMICS - Systems and methods are disclosed that promote the remediation of contaminated materials that are produced during industrial processes. These systems and methods include heating a material, transferring heat from the material to an industrial process. During this transfer, contaminants may be introduced into the material. These methods may remove the contaminant by treating the material with a surface modified nanoceramic through nanofiltration and/or active sites adsorption/reaction. The surface modified nanoceramic may remove at least part of the contaminant in the material. No cooling required prior to removing the contaminant from the material, which can lead to great energy saving and pollution reduction. | 11-26-2009 |
20100108610 | Method for Treating a Diamine Absorbent Stream - A diamine absorbent that contains heat stable salts is regenerated using an ion exchange process wherein the concentration of heat stable salts in the feed stream provided to the cation exchange unit is limited. | 05-06-2010 |
20100140178 | BLENDED SALT COMPOSITION AND METHOD OF USING - Novel water softening compositions and methods of treating hard water are provided. The compositions comprise a blend of sodium chloride and potassium chloride. The compositions are useful for regenerating ion exchange material in a water softening system and providing softened water containing both sodium and potassium ions. | 06-10-2010 |
20100147767 | Method for purifying waste saline waters without reagent waste - Waste saline waters are purified by contacting with a cation exchange resin in hydrogen form, then with a WBA resin and, if desired, with a SBA resin. The cation exchange resin is regenerated with a strong acid reagent. The WBA resin is regenerated with ammonium hydroxide reagent. The SBA resin is regenerated with an alkali metal hydroxide. The residual reagent values in the spent regenerants are applied to the soil as amendments, fertilizer, for pH control, wind erosion control, deicing roadways and in Enhanced Oil Recovery. | 06-17-2010 |
20100147768 | RENEWABLE SORBENT MATERIAL AND METHOD OF USE - Sorbent materials include a support, a base material comprising a first compound covalently bound to the support, and an active material reversibly bound to the base material, wherein the active material comprises a second compound with at least one functional group selected for binding a target species. The active material with the bound target species can be removed by washing the sorbent material with a solvent in which the second compound is soluble. The sorbent material can be regenerated by reversibly binding one or more second compounds having a selected functional group to the washed base material. | 06-17-2010 |
20100200509 | METHOD AND DEVICE FOR SAMPLE PREPARATION - The invention provides pipette tip extraction columns for the purification of a DNA vector from un-clarified cell lysate containing cell debris as well as methods for making and using such columns. The columns typically include a bed of extraction media positioned in the pipette tip column, above a bottom frit and with an optional top frit. | 08-12-2010 |
20100224565 | MULTIPLE BED TEMPERATURE CONTROLLED ADSORPTION - The systems and processes disclosed herein relate generally to multi bed temperature controlled adsorption for use in the recovery of sorbates that are removed from process streams by adsorption. Multi bed temperature controlled adsorber systems can include three or more temperature controlled adosrbers that operate in parallel. Each temperature controlled adsorber through a series of steps including an adsorption step, a first bed to bed interchange, a regeneration step, and a second bed to bed interchange. | 09-09-2010 |
20100237019 | PROCESS FOR SEPARATING A CHARGED SPECIES FROM AN AQUEOUS SYSTEM - The present invention relates to a process for separating a charged species from an aqueous system, wherein the process comprises the following steps: (a) a first aqueous system comprising the charged species is contacted at a first temperature with an ampholytic polymeric 5 system comprising cationic and anionic domains, wherein the charged species is bonded to the ampholytic polymeric system; and (b) the ampholytic polymeric system is contacted with a second aqueous system at a second temperature, wherein the charged species is released to the second aqueous system, wherein the second temperature is higher than the first temperature and wherein the second temperature is higher than the first temperature and wherein the second 10 temperature is less than 60° C. | 09-23-2010 |
20100252505 | HIGH EFFICIENCY ION EXCHANGE SYSTEM FOR REMOVING ARSENIC CONTAMINANTS FROM WATER - The disclosed invention is a fixed bed ion exchange water purification system. It employs a combination of electronically controlled process steps and specific systems configurations to duplicate the effects of moving resin beds from one operating position to another as is required in moving bed ion exchange water purification systems. The invention combines features of single fixed bed ion exchange systems with those of a moving bed system. The invention applies to the treatment of water having typical industrial and drinking water concentrations of various ions. | 10-07-2010 |
20100300976 | APPARATUS FOR PRODUCING REGENERATIVE WATER AND METHOD OF PRODUCING REGENERATIVE WATER USING THE SAME - Disclosed herein is an apparatus and method of producing regenerative water. The apparatus includes a main body, a basket, a regenerative substance block and an on/off valve. The main body has a water inlet port through which raw water is supplied into the main body, a water outlet port through which regenerative water is discharged out of the main body, and a drain port which drains an excess of raw water or regenerative water. The basket is provided in the main body. The regenerative substance block is contained in the basket and dissolved by the raw water. The on/off valve is provided on the water outlet port. The raw water dissolves the regenerative substance block for a predetermined duration. When the on/off valve is opened, the produced regenerative water is supplied through the water outlet port into a soft water tank. | 12-02-2010 |
20100300977 | OPERATIONS OF SELENIUM REMOVAL SORBENT BEDS - Methods and apparatus relate to removing selenium from a fluid. The fluid includes non-selenium constituents that are insoluble at a pH in which the fluid is passed through a sorbent bed in order to remove the selenium. Fouling of the sorbent bed can thereby result due to accumulation of the non-selenium constituents, which are precipitated solid materials. Intermittent washing of the sorbent bed with a heated and alkaline wash dissolves and removes the non-selenium constituents to maintain efficient operation and sustain selenium removal performance. | 12-02-2010 |
20100326920 | CARBON RETENTION SCREEN WITH VARIABLE DISCHARGE HEAD - A carbon adsorption vessel for use in a CIP (carbon in pulp) or CIL (carbon in leach) process may be constructed. A slurry is obtained having dissolved (leached) precious metals. The slurry is brought into contact with carbon particles and is passed through a retention screen in the vessel. The dissolved precious metals adhere onto the carbon particles. An air lift pump provides the pressure differential necessary to drive the slurry through the retention screen, wherein the carbon particles are retained by the retention screen and the slurry passes through the retention screen. After passing through the retention screen, the slurry is received in to a receiving vessel that may be situated at, below or above the level of source vessel. | 12-30-2010 |
20110006010 | Interlayer Ion Replacing Method for Hydrotalcite-Like Substance, Regenerating Method, and Interlayer Ion Replacing Apparatus - There are provided an interlayer ion replacing method and an interlayer ion replacing apparatus which can efficiently replace the interlayer negative ions of hydrotalcite-like substances. The amount of positive ions which chemically-react with at least one of the interlayer negative ions or substituent negative ions is adjusted to facilitate desorption of the interlayer negative ions adsorbed by the hydrotalcite-like substances or to make the substituent negative ions easily adsorbed by the hydrotalcite-like substances, and the interlayer negative ions are replaced with the substituent negative ions. | 01-13-2011 |
20110011803 | SORBENT FIBER COMPOSITIONS AND METHODS OF USING THE SAME - The various embodiments of the present invention relate generally to sorbent fiber compositions. More particularly, various embodiments of the present invention are directed towards sorbent fibers for pressure swing and temperature swing adsorption processes. Various embodiments of the present invention comprise a sorbent composition, comprising a fiber comprising a plurality of tortuous pathways; and a sorbent material, wherein the sorbent material is in fluid communication with at least a portion of the plurality of tortuous pathways. Aspects of the present invention comprise compositions, devices and methods of using sorbent fiber compositions. | 01-20-2011 |
20110100921 | Device for Separating Particles in and from Liquids and Use of Said Device in Biotechnology, Biological Research, Diagnostics and the Treatment of Diseases - The separation of particles in or from liquids is a necessary method in many procedures in biotechnology, biological research, diagnostic, and treatment of diseases. Commonly, methods are used which are based on differences in density (sedimentation) or size (filtration) of the particles. | 05-05-2011 |
20110147314 | WATER DESALINATION APPARATUS AND METHOD - A desalination apparatus is disclosed which uses a salt sponge unit to remove a majority of salt from water. A parallel plate capacitor can be connected after the salt sponge to remove remaining salt ions. The salt sponge is a nanoporous, high surface area carbon scaffold to which crown ethers are attached. A power supply is connected to the salt sponges for applying a bias voltage to regenerate the salt sponges. A chlorine treatment unit can be connected after the parallel plate capacitor. A method of purifying sea water using the apparatus also is disclosed. | 06-23-2011 |
20110147315 | METHOD OF WATER DISCHARGE MANAGEMENT - A method of water discharge management in a water processing system is provided. The method includes providing a supply of a first solution, providing a supply of a second solution, and selectively supplying the first solution to a water processing system and the second solution to the water processing system. The method further includes controllably and selectively directing discharge water formed in the water processing system through a first multi-way valve to a waste outlet during a period in which the discharge water satisfies a first selected criteria, and to a second multi-way valve during a period in which the discharge water satisfies a second selected criteria. The method also includes controllably and selectively directing the discharge water through the second multi-way valve to a first storage container connected to the second multi-way valve during a period in which the discharge water satisfies a third selected criteria, and to a third multi-way valve during a period in which the discharge water satisfies a fourth selected criteria. In addition, the method includes controllably and selectively directing the discharge water through the third multi-way valve to a second storage container during a period in which the discharge water satisfies a fifth selected criteria, and the discharge water as a solution to the supply of first solution during a period in which the discharge water satisfies a sixth selected criteria. | 06-23-2011 |
20110174739 | LITHIUM RECOVERY DEVICE USING SEPARATOR RESERVOIR, LITHIUM RECOVERY METHOD AND LITHIUM ADSORPTION/DESORPTION SYSTEM USING THE SAME - The present invention relates to a lithium recovery device comprising a separator reservoir and manganese oxide, a lithium recovery method using the same, and a lithium adsorption/desorption system. The separator reservoir includes a vacant space therein and an outer wall made of a polymer or a membrane of other useful materials. The manganese oxide is contained, as an adsorbent, in the vacant space inside the separator reservoir. The lithium adsorption/desorption system enables lithium recovery through adsorption and desorption of lithium dissolved in seawater using a lithium adsorbent prepared with the manganese oxide in one system, wherein the manganese oxide can be used as a lithium adsorbent with high lithium selectivity. The invention uses a separator reservoir including an outer wall made of a porous polymer or a membrane of other useful materials. As a result, the invention can be directly applied to seawater by enabling free movement of the solution, especially seawater, without additional pressure from the outside. The invention ensures strong stability in seawater and the acidic solution using a polymer with high chemical resistance and mechanical strength, or other useful materials. Therefore, the invention can be widely used in technical fields requiring lithium recovery. | 07-21-2011 |
20110180483 | FILTRATION METHOD, METHOD FOR PURIFYING POLISHING COMPOSITION USING IT, METHOD FOR REGENERATING FILTER TO BE USED FOR FILTRATION, AND FILTER REGENERATING APPARATUS - According to the present invention, a filtration method capable of prolonging the life of a filter and regenerating it without impairing the efficiency can be provided. Further, a filter regenerating method and a regenerating apparatus, for efficiently regenerating a filter, are provided. The filtration method of the present invention is a method of subjecting a liquid to filtration by using a resin media filter, wherein ultrasonic waves at a frequency of at least 30 kHz are applied to the filter while the filtration is carried out, during the temporary stop of the filtration or after completion of the filtration. Efficient purification is possible by subjecting a polishing composition to filtration by such a filtration method. Further, the filter regenerating method of the present invention comprises applying ultrasonic waves at a frequency of at least 30 kHz to a used resin filter. | 07-28-2011 |
20110259829 | METHOD FOR REMOVING BORON IN WATER TREATMENT - The invention relates to a process for reducing boron levels in water comprising the steps of passing the water with boron through an inlet manifold, adding basic or alkaline additives, treating the water from the previous step with clays, removing the water from the previous step through an outlet manifold and washing the clays. | 10-27-2011 |
20110272360 | METHOD FOR OPERATING ION EXCHANGE EQUIPMENT, AND ION EXCHANGE EQUIPMENT - A regeneration process in the operating method of the invention includes a first regeneration process, and a second regeneration process after the end of the first regeneration process. In the first regeneration process, a regenerant ( | 11-10-2011 |
20110278230 | PROCESS FOR IN-SITU CLEANING OF DRINKING WATER FILTRATION MEDIA - The present invention provides a process to clean water filtration media in a filtration bed. The process includes applying a granular cleaner to the water filtration media and applying an activator to the water filtration media. This causes a chemical reaction between the granular cleaner, activator and water filtration media resulting in the cleaning of the water filtration media. The residual granular cleaner and activator, along with suspended and dissolved contamination from the water filtration media, are removed by rinsing with water. | 11-17-2011 |
20110284470 | METHOD FOR REGENERATING FILTER - [PROBLEM] There is provided a method for regenerating a filter, by which deterioration of the color tone of purified acrylic acid can be prevented. | 11-24-2011 |
20110297617 | SEPARATOR AND METHOD - A separator includes a separation arrangement having a roller; and a belt disposed about the roller. Feed material introduced to the separator such as tar sand, is separated into sand and oil so that discharge from the separator will be substantially separate material streams of sand and oil. A method and system are included. | 12-08-2011 |
20120085708 | Mesoporous Activated Carbon and Methods of Producing Same - Mesoporous activated carbon is disclosed. In at least some embodiments, virgin activated carbon to be processed may be coconut shell-based. The enhanced activated carbon may have a mesopore structure of at least about 10%. The enhanced activated carbon may be produced through a calcium-catalyzed activation process. A chelator may also be used. Catalyzed thermal activation may be carried out until a desired mass loss is achieved. | 04-12-2012 |
20120125855 | METHOD FOR TREATING LIQUID CONTAINING PERCHLORATE ION - The present invention provides a novel and practical method for treating a perchlorate ion-containing liquid. The perchlorate ion-containing liquid is brought into contact with a weak base anion exchange resin, so that perchlorate ions are adsorbed to the weak base anion exchange resin, and then an acid is brought into contact with the resin, so as to remove the perchlorate ions from the weak base anion exchange resin to which the perchlorate ions are adsorbed. This makes it possible to repeatedly use the weak base anion exchange resin. | 05-24-2012 |
20120138538 | Rechargeable Surface Active Porous Media For Removal of Organic Materials From Aqueous Fluids - Organic material may be removed from a fluid, such as an aqueous fluid, by contacting the fluid with a surface active porous medium. The surface active porous medium includes a bed of substrate particles (e.g. sand), at least a partial coating of nanoparticles on the substrate bed, and a plurality of absorbing particles fixated on the nanoparticles. The absorbing particles may include, but are not necessarily limited to, coal fines, activated carbon, activated charcoal, activated coal and combinations thereof. The surface active porous medium may be regenerated by contacting the surface active porous medium with an acid solution to substantially remove the organic materials therefrom. | 06-07-2012 |
20120234765 | METHOD OF TREATMENT OF PRODUCED WATER AND RECOVERY OF IMPORTANT DIVALENT CATIONS - Provided herein are systems and methods for use in wastewater treatment. In some examples, the systems and methods involve different combinations of ion exchange and membrane based systems and processes that can be used to remove radium and recover and purify barium and strontium salts to render the wastewater depleted of those regulated toxic metals. Treated wastewater having less than 12000 pCi/L of any of radium, barium or strontium is then subjected to tertiary treatment where it is subjected to processes in an evaporator/crystallizer which drives out water in the form of vapor, leaving behind salts of innocuous metals such as sodium, calcium, and magnesium, among others. In some examples, water vapor from the processes is condensed to produce water suitable for reuse, such as reuse in the hydro-fracturing process. | 09-20-2012 |
20120241383 | REGENERABLE FILTER UNIT FOR REMOVING METAL, REGENERABLE FILTER SYSTEM INCLUDING THE SAME, AND METHOD OF OPERATING REGENERABLE FILTER SYSTEM - A filter unit may include a water permeable first electrode, a second electrode arranged so as to be spaced apart from and opposite to the first electrode, and a non-water permeable separator that is positioned between the first electrode and the second electrode. The first electrode may include a metal adsorbent (metal-adsorbing material) and thus may adsorb a metal included in the water. At least one of the first electrode and the second electrode may induce a water hydrolysis reaction to produce H | 09-27-2012 |
20120241384 | Reduction in Flushing Volume in an Adsorptive Separation System - A process for separating a product from a multicomponent feedstream to an adsorption apparatus or system is described. The apparatus or system may comprise a moving-bed or a simulated moving-bed adsorption means. The product comprises at least one organic compound, such as an aryl compound with alkyl substitutes. In embodiments the conduits used to supply the feedstream to the apparatus or system are flushed with media of multiple grades. The improvement is a more efficient use of the desorbent. In embodiments the process achieves improvements in one or more of efficiency of adsorption separation, capacity of adsorption apparatus systems, and purity of product attainable by adsorption process. | 09-27-2012 |
20120261346 | Raw water hardness determination in a water treatment system via the conductivity of soft or blended water - A method of operating a water treatment system ( | 10-18-2012 |
20120298586 | ALPHA-PARTICLE EMITTER REMOVAL - Methods of purifying acidic metal solutions by removing at least a portion of alpha-particle emitting materials are provided. The purified metal solutions are useful in a variety of applications requiring low levels of alpha-particle emission. | 11-29-2012 |
20130001167 | PROCESS FOR WATER SOFTENING - A method is described for removing hard water components from water wherein the removed ions are not replaced by sodium ions. The method includes the steps of passing water having dissolved hard water components through a water-softening column containing a tungsten-based sorbent. The hard water components are reacted with tungsten based sorbent to remove the hard water components. The tungsten based sorbent is regenerated for later use in the step of reacting. The resulting by-products include calcium and magnesium or ammonium nitrate, all of which may be sold and used for various purposes. | 01-03-2013 |
20130008855 | IMPREGNATED CARBON FOR WATER TREATMENT - A method for treating aqueous solutions, wherein a filtrate material is manufactured to have a polymer with ion exchange properties adhered to the surface or impregnated within a porous, granular particle such that the resultant structure does not result in any agglomeration or binding of the granular particles, thereby retaining the maximum surface area of the particle for reacting with metal impurities in solution. A filtrate material comprised of a porous granulated particle and an ion exchange polymer. A method of treating aqueous solutions by passing an aqueous solution through the filtrate material to remove metal impurities in the solution. A method of regenerating the filtrate material that is saturated with metal impurities. | 01-10-2013 |
20130098840 | Porous Composite Media for Removing Phosphorus from Water - Disclosed are nano-engineered porous ceramic composite filtration media for removal of phosphorous contaminates from wastewater and other water or liquid sources. Such porous ceramic media has high surface area and an interconnecting hierarchical pore structure containing nano-iron oxide/oxyhydroxide compounds, as well as other nano materials, surfactants, ligands or other compounds appropriate for removing higher amounts of phosphorous or phosphorous compounds. The composite media can be modified with nano-phased materials grown on the high surface area and addition of other compounds, contains hierarchical, interconnected porosity ranging from nanometer to millimeter in size that provides high permeability substrate especially suited for removal of contaminants at the interface of the water or other fluids and the nanomaterial or surfactants residing on the surfaces of the porous structure. | 04-25-2013 |
20130105398 | METHOD FOR REMOVING AMMONIUM NITROGEN FROM ORGANIC WASTE WATER COMPRISING LIQUID MANURE | 05-02-2013 |
20130118986 | High Capacity Oxoanion Chelating Media From Hyperbranched Macromolecules - A resin is provided for selectively binding to certain anions in aqueous solution. The beads are prepared by cross-linking macromolecules such as hyperbranched PEI, and functionalizing with groups containing vicinal diol moieties. | 05-16-2013 |
20130134098 | WATER TREATMENT PROCESSES FOR NORM REMOVAL - Methods for treating water to remove radium include contacting the water with a magnetic adsorbent comprising manganese oxide(s), and applying a magnetic field to separate the magnetic adsorbent from the water, whereby radium is removed from the water. The methods may additionally include regenerating the magnetic adsorbent, and contacting the water with regenerated magnetic adsorbent. Alternately, calcium and/or strontium may be precipitated as carbonate salts from lime-treated water containing radium and barium without precipitating a significant fraction of the barium or radium; and removing radium from calcium- and strontium-free water by precipitating the barium and radium as carbonate salts. The barium- and radium carbonate precipitate may be redissolved in hydrochloric acid and disposed of by deep-well injection. | 05-30-2013 |
20130134099 | STEAM PURIFICATION - This invention relates to an improved process for producing weakly acidic cation exchange resins, in particular the purification of weakly acidic cation exchange resins derived from crosslinked poly(acrylonitrile) and also the use of steam for reducing the leaching of weakly acidic cation exchangers and finally a process for increasing the performance of water treatment systems, preferably of tap water treatment systems, using the weakly acidic cation exchangers produced according to the invention. | 05-30-2013 |
20130168319 | TREATMENT OF WASTE WATER CONTAINING FLUORINATED ACIDS OR THE SALTS THEREOF - The invention relates to a method of separating off fluorinated acids, in particular perfluorocarboxylic acids and perfluorosulphonic acids or salts thereof, from dilute aqueous solutions with the help of anion exchangers. | 07-04-2013 |
20130175220 | TITANIUM DIOXIDE-BASED HYBRID ION-EXCHANGE MEDIA - A titanium dioxide-based hybrid ion-exchange media including anatase titanium dioxide nanoparticles supported by an ion-exchange resin for removing strong acid ions and oxo-anions from water. The titanium dioxide-based hybrid ion-exchange media is prepared in situ by combining ion-exchange media with a TiO | 07-11-2013 |
20130299430 | METHODS OF PRODUCING IODINATED ANION EXCHANGE RESINS - Methods for producing or regenerating an iodinated anion exchange resin are presented. The methods include treating an iodide loaded anionic resin with an aqueous solution comprising an in situ formed I2 to produce the iodinated resin. The iodinated resins show reduced and stable levels of iodine elution compared to resins produced by conventional methods. Methods and systems for purifying water are also presented. | 11-14-2013 |
20130341281 | Surface Modified Ceramic Filter - A porous ceramic filter having one or more coatings of elemental or compounds of iron, manganese, aluminum, titanium, or mixtures thereof deposited on the surface of the pores. | 12-26-2013 |
20140083947 | CHITOSAN DERIVATIVE, A METHOD FOR ITS PREPARATION AND ITS USE AS AN ADSORPTION AGENT - The present invention relates to a cross-linked thiazolidinone chitosan dibenzo crown ether, a method for its preparation as well as its use as adsorbent. | 03-27-2014 |
20140116950 | Device and Method for Recovering a Recovering Material from a Recovering Fluid Containing the Recovering Material - To achieve high efficiency in regeneration of waste fluid from metal plating electrolytes for example, a device and a method for recovering a recovering material from a recovering fluid containing the recovering material are provided. | 05-01-2014 |
20140138319 | Dental Amalgam Filter Including Tungsten Disulfide Nanopowder - The present invention relates to the preparation and use of a three-dimensional polymer matrix including tungsten disulfide nanopowder coated on and embedded within a solid porous support for removing water soluble and micro-particulate mercury species from waste water including dental effluent. The solid porous support can be regenerated upon washing with an appropriate chelating ligand for reuse. | 05-22-2014 |
20140231354 | HEAVY METAL REMOVAL METHODS AND SYSTEMS - A support impregnated with selenium and capable of effectively removing a heavy metal from a process stream that is at an ambient temperature or is at an elevated temperature. | 08-21-2014 |
20140231355 | TREATMENT OF CONTAMINATED LIQUIDS - Apparatus and method for the treatment of a contaminated liquid to remove contaminants from said liquid. The apparatus comprises a bed of a carbon based adsorbent material capable of electrochemical regeneration, at least one pair of electrodes operable to pass an electric current through said bed to regenerate the adsorbent material, and means to admit contaminated liquid into said bed to contact said adsorbent material at a flow rate which is sufficiently high to pass the liquid through the bed but below the flow rate required to fluidise the bed of adsorbent material. | 08-21-2014 |
20140263074 | GE ADSORBENT FOR 68Ge-68Ga GENERATOR - The present invention provides a Ge adsorbent for a | 09-18-2014 |
20140326672 | MELAMINE ALDEHYDE POLYMERS - Described herein is a melamine-aldehyde polymer, wherein the polymer has a pore volume in the range of about 1.5 to 5 cm3/g. | 11-06-2014 |
20140374357 | METHODS FOR DECREASING AQUEOUS HALIDE AND ORGANOHALIDE LEVELS USING PLANT BIOMASS - Disclosed are processes to treat water having halide ions and organohalides. The process comprises contacting a plant biomass with an alkaline solution to give an alkaline plant biomass, and contacting the alkaline plant biomass with water to give a biomass material. An aqueous sample with organohalides or halide ions is contacted with the biomass material to provide a low halide filtrate and a spent biomass. | 12-25-2014 |
20150053620 | WATER TREATMENT - The present invention features compositions and methods for reducing the concentration of an endocrine disrupting agent in an aqueous solution. We describe compositions comprising various polymeric resins. The methods can be used to reduce the concentration of endocrine disrupting agents, including estrogens, perfluorinated compounds and bisphenol A in an aqueous solution. | 02-26-2015 |
20150114908 | SYSTEM AND METHOD FOR PURIFYING PROCESS WATER PRODUCED FROM BIOMASS CONVERSION TO FUELS - In accordance with one embodiment, a process is described for a water treatment process in which water produced from a fuel production process is treated with recycled biochar. In accordance with one aspect, process water is passed through activated carbon generated by the biomass pyrolysis and gasification. In accordance with another aspect, the process water is treated to expel gaseous compounds within the process water. In this manner both inorganics, light organics and heavy organics can be removed from the process water. No fermentation is involved. | 04-30-2015 |
20150360205 | METHODS AND APPARATUS FOR CONTROLLING METALS IN LIQUIDS - Method and apparatus for controlling metals in a liquid are described. The liquid is contacted with a hexahydrotriazine and/or a hemiaminal material, and metal is adsorbed from the liquid onto the material. The hexahydrotriazine and/or hemiaminal material may be made from a diamine and an aldehyde. | 12-17-2015 |
20150360206 | METHODS AND APPARATUS FOR CONTROLLING METALS IN LIQUIDS - Method for controlling metals in a liquid are described. The liquid is contacted with a hexahydrotriazine and/or a hemiaminal material, and metal is adsorbed from the liquid onto the material. The hexahydrotriazine and/or hemiaminal material may be made from a diamine and an aldehyde. | 12-17-2015 |
20150367060 | REPLENISHING UREASE IN DIALYSIS SYSTEMS USING UREASE POUCHES - An apparatus and method for replenishing urease in a sorbent cartridge for use in sorbent dialysis using urease pouches. The sorbent cartridge is configured to allow insertion of a urease pouch or injection of a urease solution into the sorbent cartridge containing a urease pouch. The sorbent module can also comprise other, rechargeable, sorbent materials for removing toxins other than urea from spent dialysate. | 12-24-2015 |
20160023921 | METHOD FOR MAKING ACTIVATED CARBON-SUPPORTED TRANSITION METAL-BASED NANOPARTICLES - Methods for making activated carbon-supported transition metal-based nanoparticles include (a) impregnated activated carbon with at least one transition metal-containing compound, and (b) heating the impregnated activated carbon at a temperature and for a time sufficient to carbothermally reduce the transition metal-containing compound. Also disclosed are activated carbon-supported transition metal-based nanoparticles produced by such methods. Further disclosed are methods for treating water and waste streams that include contacting the water or waste streams with the activated carbon-supported transition metal-based nanoparticles. | 01-28-2016 |
20160101990 | SYSTEM AND METHOD FOR PURIFYING PROCESS WATER - In accordance with one embodiment, a process is described for a water treatment process in which process water is treated with recycled biochar. In accordance with one aspect, process water is passed through activated carbon generated by the biomass pyrolysis and gasification. In accordance with another aspect, the process water is treated to expel gaseous compounds within the process water. In this manner both inorganics, light organics and heavy organics can be removed from the process water. No fermentation is involved. | 04-14-2016 |
20160114272 | HIGH CAPACITY COMPOSITE DEPTH FILTER MEDIA WITH LOW EXTRACTABLES - A depth filtration device for the clarification of biological fluids including a composite depth filter media having a nonwoven first layer integral with a second layer containing a polyaeryionitrile (PAN) fibers, a filter aid, and a wet-strength resin. The depth filter media exhibits increased creased binding capacity for soluble impurities such as DNA and host cells proteins from biological/cell culture feed-streams during secondary clarification and low-level impurity clearance of harvested cell culture fluids, such as those used for the manufacture of monoclonal antibodies. The depth filter media additionally exhibits significantly lower flushing requirements, resulting in lower levels of organic, inorganic and bioburden extractables released, high dirt holding capacities and good chemical and/or radiation resistance. | 04-28-2016 |
20170232421 | Method for In-Situ Regeneration of Activated Carbon Loaded with Trihalomethanes Using Alkaline Hydrolysis | 08-17-2017 |
20190144305 | ADSORPTION AND REMOVAL OF HEAVY METAL IONS FROM WATER BY TRANSITION METAL DICHALCOGENIDES | 05-16-2019 |