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Utilizing contact surfaces supporting microorganism (e.g., trickling filter, etc.)

Subclass of:

210 - Liquid purification or separation

210600000 - PROCESSES

210601000 - Treatment by living organism

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
210616000 Particulate media 29
210619000 Rotating contactor 5
20090211971METHOD AND DEVICE FOR PURIFICATION OF EFFLUENT - The invention relates to a method for the purification of effluent, in particular, effluent from the paper industry, comprising the following method steps: a) aerobic purification of the effluent using activated sludge in an activated sludge tank (08-27-2009
20110068057SYSTEMS, APPARATUSES AND METHODS FOR TREATING WASTEWATER - Systems, apparatuses, and methods of treating wastewater are provided. In some aspects, a container may be provided and may include a first member, a second member spaced apart from the first member, and media supported by and extending between the first and second members. An organism may be introduced into the container and wastewater may be introduced into the container for treatment. The media may be loop cord media. In other aspects, two containers may be provided and wastewater may be initially introduced into a first container for treatment, removed from the first container, and subsequently introduced into the second container for further treatment. A first species of organism may be present in the first container and a second species of organism may be present in the second container. Methods of using these containers are also provided.03-24-2011
20120152834ROTATING BIOLOGICAL CONTACTOR APPARATUS & METHOD - A wastewater treatment facility with a rotating biological contactor (“RBC”) that has a control system. The RBC sits in a tank that receives wastewater to be purified over which a reversible rotatable shaft is supported. One or more stages of rotating disk assembles progressively purify incoming wastewater. Each stage is oriented transversely to the shaft and has a plurality of disk assemblies. Each disk assembly has a number of disks that are sandwiched between end plates. Each of the disks comprises multiple concentric truncated pie-shaped segments. Posts extend from the front and back faces of the disks for stirring wastewater and for offering numerous sites to which biomass may adhere and be suspended in the wastewater or exposed to ambient atmosphere during rotation06-21-2012
20120152833ROTATING BIOLOGICAL CONTACTOR APPARATUS & METHOD - A wastewater treatment facility with a rotating biological contactor (“RBC”) system. The RBC sits in a tank that receives wastewater to be purified. The tank supports a rotatable shaft. One or more stages of rotating disk assembles progressively purify incoming wastewater. Each stage is oriented transversely to the shaft and has a plurality of disk assemblies. Each disk assembly has a number of disks. Each of the disks comprises multiple concentric arcuate segments. The segments are provided with two generally radially extending edges, two circumferential edges that extend between the two radially extending legs, and a front face and a back face. Posts extend from the front and back faces of the disks for stirring wastewater and for offering a site for adherence of biomass suspended in the wastewater. Connecting members interconnect adjacent disks and optionally define a flow channel therebetween. First and second engagement features also extend from one of the front and back surfaces of a disk that enable adjacent segments of a disk to be joined.06-21-2012
20100116734BIOLOGICAL WASTEWATER TREATMENT APPARATUS AND METHODS USING MOVING BELT CONTRACTOR - A compact biological treatment assembly, apparatus and methods are disclosed, the apparatus including a movable belt biological contactor having selected microbial cultures established thereon. The apparatus further includes a tank having a volume for receipt of wastewater to be treated, first and second drums positioned at the tank each connected to an end of the belt contactor, and a motor or motors together with a controller for rotating the drums cooperatively to move the belt contactor between the drums thereby coiling and uncoiling the belt contactor on the drums.05-13-2010
Entries
DocumentTitleDate
20090095675Water treatment bioreactor using hollow filaments - Apparatus, systems, and methods for removal of contaminants in water are described. In particular, apparatus, systems, and methods for the treatment of potable water, for removal of oxidized contaminants, using hollow polyester filaments for sustaining a biofilm are described.04-16-2009
20130032532WATER TREATMENT METHOD AND METHOD FOR PRODUCING ULTRAPURE WATER - A water treatment method and a method for producing ultrapure water are provided in which urea in raw water is sufficiently decomposed, and an organism (bacterial cells) in biological treatment is prevented from flowing downstream. In a water treatment method for performing biological treatment of raw water containing urea, a carbon source is added to the raw water, and the raw water is then supplied to biological treatment means 02-07-2013
20090032459Colored wastewater discoloration method - Colored wastewater from industries, agriculture and the like is discolored by adjusting pH of the wastewater and filtering the wastewater through a mixture of acid-treated sawdust produced from sawdust which has been disposed of after being used for fungi production and charcoal thereby to remove a color component fraction from the wastewater and through a filter material, for example acid-treated rice husk charcoal, in which autochthonous microorganisms are embedded thereby to absorb color components remaining in the wastewater.02-05-2009
20130068688METHOD FOR THE TREATMENT OF INDUSTRIAL WASTE - There is provided a method for treating spent metal working fluid (MWF), comprising the steps of: (a) providing a biofilm of microorganisms on a solid support matrix in a first bioreactor; (b) transferring at least a portion of the solid support matrix comprising the biofilm of microorganisms from the first bioreactor into a second bioreactor; and (c) incubating the microorganisms in the second bioreactor to reduce the chemical oxygen demand of the spent MWF contained therein.03-21-2013
20120234753COOLING SYSTEM AND METHOD FOR THE OPERATION THEREOF - The invention relates to a cooling method and cooling system comprising a cooling device (09-20-2012
20120234752METHOD OF IMPROVING NITRIFICATION IN A TRICKLING FILTER - A method of improving nitrification in a wastewater treatment plant is provided. The method comprises the steps of a) providing a trickling filter effluent water basin having biological filter media placed on a support platform positioned at least three feet above a bottom of the basin; and (b) contacting the filter media with the wastewater. Nitrification (removal of ammonia by conversion to nitrate) can be improved at least 30% as compared to a trickling filter without the invention.09-20-2012
20120132587WASTEWATER TREATMENT SYSTEM - Disclosed is a system for treating wastewater. The system includes a microorganism clad structure positioned in a body of wastewater such that the microorganism clad structure is at least partially submerged in the body of wastewater. The apparatus also includes an aeration device, such as a propeller-type, surface mounted aeration device, supplying a horizontal flow of oxygenated water to the microorganisms attached to the microorganism clad structure such that the microorganisms may carry out a biological process.05-31-2012
20090206032Solid Digesting Waste Treatment Unit - The wastewater treatment tank results in high quality effluent meeting what is referred to as “Secondary Treatment Standard. The tank deploys in combination an Facultative Aerobic Bacterial Generators (FABG) that includes a plurality of surrounding horizontally extending bacteria supporting filters disposed in a vertical array along with a second vertical filter media disposed between the FABG and the outlet port. A facultative bacteria generator and additional bacteria supporting filters are also deployed adjacent the FABG and between the second vertical filter media.08-20-2009
20090206030Filter assembly, bioreactor catch basin and method of using the same - Provided is a filter assembly for a bioremediating catch basin. The filter assembly comprises a container having at least one inlet and at least one outlet; a carrier substance, such as a foam, which carries a microorganism capable of digesting hydrocarbons; and optionally an adsorbent material. The filter assembly also optionally has structures for overflow conditions which allow the exit of water, but not floating contaminants from the catch basin. Also provided is a replaceable cartridge for the filter assembly. Also provided is a method for bioremediation of polluted water.08-20-2009
20100170846WASTEWATER TREATMENT SYSTEM - Disclosed is a system for treating wastewater. The system includes a microorganism clad structure positioned in a body of wastewater such that the microorganism clad structure is at least partially submerged in the body of wastewater. The apparatus also includes an aeration device, such as a propeller-type, surface mounted aeration device, supplying a horizontal flow of oxygenated water to the microorganisms attached to the microorganism clad structure such that the microorganisms may carry out a biological process.07-08-2010
20100089827MEMBRANE BIOFILM REACTOR FOR REMOVING CONTAMINANTS FROM GROUND WATER - Apparatus and methods for water treatment are described, particularly for the simultaneous removal of nitrate, perchlorate, and other organic contaminates from contaminated water using a membrane biofilm reactor (MBfR).04-15-2010
20080264859Method for Initiating Microbiological Processes in Artificial Waters - In a method for initiating microbiological processes in stagnant and flowing bodies of water heterotrophic microorganisms in immobilized form are added to the water. The heterotrophic microorganisms are selected from heterotrophic nitrifying microorganisms. The heterotrophic microorganisms are present in dried form and are immobilized on a material that is suitable as a water filter or can be pressed into a tablet.10-30-2008
20090283472Wastewater Treatment Apparatus - A wastewater treatment apparatus having a fixed film media apparatus having insertable high surface area polymer cartridges providing growth surfaces for autotrophic or heterotrophic bacteria and a protective shielding surface which isolates the biofilm from turbulence within the wastewater treatment system. A method of placement of said media apparatus within the aeration and/or clarifier section of the wastewater treatment apparatus.11-19-2009
20090277832Method for biological disposal of organic wastewater and biological disposal apparatus - A biological treatment method and device for organic wastewater, whereby the amount of minute organisms which reduce the amount of excess sludge and held within an activated sludge tank can be stabilized so that the treatment can be stabilized, are provided. Substrates for growing dispersed bacteria and/or dispersed bacteria are supplied to a sludge treatment tank 11-12-2009
20120067818METHOD AND REACTOR FOR BIOLOGICAL PURIFICATION OF WASTE WATER. - Present invention relates to a method and apparatus for purification of water, said method comprises the steps of feeding the water into a reactor (03-22-2012
20090250394SEWAGE TREATMENT - The present invention discloses a membrane, optionally for use in sewage treatment. The membrane comprises a support membrane having a gas face biolayer on a gas face of the membrane and/or in the support membrane near the gas face, and a liquid face biolayer on a liquid face of the membrane and/or in the support membrane near the liquid face.10-08-2009
20090255871Method and apparatus for on-site treatment of waste water - A method and apparatus is provided for continuous microbial seeding of waste-laden water directly within septic tanks and similar treatment facilities in order to improve quality of effluent discharge, thereby reducing or eliminating problems commonly associated with such effluent (including, but necessarily limited to, clogging of conventional drain fields). Waste water to be treated flows into a multi-chambered treatment tank. At least one bio-reactor is installed in such tank, and provides for in-situ growth of desired microbial populations within said tank. The present invention allows for demand growth and improved mineralization of wastes both inside the tank, as well as downstream of the treatment tank.10-15-2009
20100163485SYSTEM FOR TREATING WASTEWATER AND A CONTROLLED REACTION-VOLUME MODULE USABLE THEREIN - A wastewater treatment system including a biological reactor is disclosed. At least one controlled-reaction-volume module is provided to the biological reactor. The at least one controlled-reaction-volume module includes a fixed-film media for supporting a biological growth. At least one mixer, such as, for example, a high momentum mixer, for communicate a fluid to the at least one controlled-reaction-volume module so that wastewater and the biological growth communicate to thereby treat the wastewater.07-01-2010
20090314710PURIFICATION METHOD FOR EFFLUENT - A description is given of a sewage treatment plant, in particular a small sewage treatment plant, having at least one activation tank for wastewater and/or having at least one secondary clarification tank for wastewater, wherein the activation tank and/or the secondary clarification tank are charged with shaped bodies which are freely floating in the wastewater, which is distinguished in that it has at least one filtration appliance for wastewater purification, which filtration appliance comprises at least one ceramic-based membrane for separating off microorganisms. In addition a method of purifying wastewater is described, comprising a biological purification of the wastewater by microorganisms in at least one activation tank and/or comprising a secondary clarification of the wastewater in at least one clarification tank, wherein the at least one activation tank and/or the at least one secondary clarification tank, for cleaning, is charged with shaped bodies, characterized in that the microorganisms situated in the wastewater are separated off by means of at least one ceramic-based membrane.12-24-2009
20110210066WASTE FLUID TREATMENT USING FILAMENTOUS FUNGUS OR ACTINOMYCETE - The present application provides a higher grade purification method of waste fulid in decomposition of organic substances than the conventional active sludge method using monocellular microorganisms. The method includes a first step of growing a filamentous fungus and/or actinomycete on a porous or fibrous carrier made of polypropylene or polyethylene by solid fermentation. Then the carrier including the grown filamentous fungus and/or actinomycete is loaded into waste fluid for purification of the waste fluid. The carrier is preferably first soaked with a nourishing starch solution and then a filamentous fungus and/or actinomycete is grown by solid fermentation such that a hyphal membrane covers the surface of the carrier.09-01-2011
20130126426METHOD FOR THE REMEDIATION OF WATER GENERATED FROM NATURAL RESOURCE PRODUCTION OPERATIONS - In some embodiments, a wastewater treatment system may reduce contaminants in water. A system may include one or more bioreactors which include a substrate that supports a biofilm. The bacteria used to form the biofilm may be selected to maximize the reduction of contaminants in water. Various components of the wastewater treatment system may be optimized to improve the efficiency and energy consumption of the wastewater system.05-23-2013
20130126428BIOREMEDIATION REACTOR SYSTEMS - In some embodiments, a wastewater treatment system may reduce contaminants in water. A system may include one or more bioreactors which include a substrate that supports a biofilm. The bacteria used to form the biofilm may be selected to maximize the reduction of contaminants in water. Various components of the wastewater treatment system may be optimized to improve the efficiency and energy consumption of the wastewater system.05-23-2013
20090272689LIQUID AERATION APPARATUS AND WASTEWATER TREATMENT METHOD - A liquid aeration apparatus includes a vessel having sidewalls, a closed bottom end and, a liquid outlet being provided at or near the upper end. The sidewalls define a cross-sectional interior open area with a vertical depth. An air diffuser is positioned within the interior open area of the vessel. A liquid intake conduit is positioned with an inlet end located at or near the upper end of the vessel and an outlet located near the bottom end of the vessel.11-05-2009
20090321351BIOREMEDIATION BLANKET AND METHOD OF USE - Bioremediation blanket including: top layer adapted to capture and remove material floating in water and to contain material removed from water on blanket and to allow hydrocarbons to flow through top layer to the interior of blanket; interior with microbes adapted to digest hydrocarbons and optionally containing support for the microbes and/or optionally containing material to absorb heavy metals present in interior layer; and bottom layer comprising monofilament woven layer adapted to release bioremediated water. Method for removing hydrocarbons from water by: providing bioremediation blanket; allowing water containing hydrocarbons to contact and penetrate the blanket; and allowing microbes within the blanket to digest the hydrocarbons. Method for pressure washing boats by: providing bioremediation blanket; placing the blanket, top side up, underneath a boat; pressure washing the boat and allowing water containing hydrocarbons generated by pressure washing to contact and penetrate the blanket; and allowing microbes within the blanket to digest the hydrocarbons.12-31-2009
20090071899WASTEWATER TREATMENT SYSTEM - Disclosed is a system for treating wastewater. The system includes a microorganism clad structure positioned in a body of wastewater such that the microorganism clad structure is at least partially submerged in the body of wastewater. The apparatus also includes an aeration device, such as a propeller-type, surface mounted aeration device, supplying a horizontal flow of oxygenated water to the microorganisms attached to the microorganism clad structure such that the microorganisms may carry out a biological process.03-19-2009
20110006001METHOD AND SYSTEM FOR SURFACE WATER TREATMENT - A method, apparatus, and system for removing contaminants from a body of surface water. The method and apparatus may include tubular members such as hollow-fiber components. The tubular members have a reactive gas diffused through wall of the member.01-13-2011
20110006000BIOFILM REMEDIATION OF METAL CONTAINING WASTEWATER - A method of in situ treatment of wastewater that is contaminated with a heavy metal may include passing a flow of contaminated wastewater through a reactor vessel. The reactor vessel may contain a plurality of biofilm retaining structures. Each of the structures may at least be partially coated with a biofilm. Additionally, the biofilm may include a plurality of bacteria retained in a matrix and the matrix may include DNA, protein and carbohydrates produced by the bacteria.01-13-2011
20090071898NOVEL MICRO-ORGANISM FOR TREATING WASTE WATER AND CORRESPONDING METHOD - The invention concerns a novel isolated microorganism characterized in that it is capable of: i) transforming Kjeldahl nitrogen, ammonia nitrogen and/or nitrogen oxides into gas nitrogen; and ii) transforming carbonaceous matter into carbon dioxide; both transformation processes being carried out in aerobic condition. The invention also concerns a method for treating wastewater using said microorganism.03-19-2009
20090206031Bioreactor system for multi-stage biological wastewater treatment - A bioreactor system for microbiological treatment of wastewater including: at least one highly-flexible substrate for providing a superficial environment conducive for supporting biomass growth, the substrate including: (a) a large plurality of threads disposed in a generally longitudinal direction and including a plurality of synthetic filaments, and (b) at least two cross-support elements disposed across and associated with the plurality of threads, so as to provide support for and loosely associate the threads, wherein openings defined by (i) adjacent threads of the threads, and (ii) adjacent cross-support elements of the elements, have an aspect ratio exceeding 50 to 1.08-20-2009
20110100907MEMBRANE CLEANING WITH PULSED ARILIFT PUMP - A method of cleaning a membrane surface immersed in a liquid medium with a fluid flow, including the steps of providing a randomly generated intermittent or pulsed fluid flow along the membrane surface to dislodge fouling materials therefrom. A membrane module is also disclosed comprising a plurality of porous membranes (05-05-2011
20110247978SUSPENDED MEDIA GRANULAR ACTIVATED CARBON MEMBRANE BIOLOGICAL REACTOR SYSTEM AND PROCESS - A system and process for treating an industrial wastewater stream is provided using a membrane biological reactor in which granular activated carbon material is introduced into an aeration portion and maintained upstream of a membrane operating system. The size of the granules of activated carbon is selected so that they can be screened or otherwise readily separated from the mixed liquor stream before the mixed liquor enters the membrane operating system tank(s) containing the submerged membranes, thereby preventing abrasion of the membrane by the carbon granules. The aeration portion includes a waste discharge port whereby a portion of spent granular activated carbon can be removed when the effluent concentration of chemical oxygen demand compounds approaches limits typically set by governmental agencies, and replaced by addition of fresh or regenerated granular activated carbon having greater adsorbent capacity.10-13-2011
20110000850WATER TREATMENT - A process for the treatment of water comprising at least the steps of: (a) providing the water in laminar flow; and (b) providing bubblefree aeration to the water. The present invention introduces aerobic treatment into wastewater settlement without any hindrance to the settlement process. The present invention is useable for any settlement step or stage, without limitation, the commonest being primary settlement or final settling.01-06-2011
20110174731Submerged Attached Growth Reactor - Described herein is a Submerged Attached Growth Reactor (SAGR) which provides nitrification (ammonia removal) from wastewater in cold to moderate climates. The system described herein is novel in that the SAGR reactor includes more than one influent distribution point. Specifically, in addition to the first influent distribution point at the front end of the reactor, there is provided at least one additional distribution point(s) downstream of this first distribution point for introduction of influent into the reactor. As a result of this arrangement, when a second low carbonaceous biochemical oxygen demand (CBOD), high nitrogen influent is distributed into the reactor at a location downstream of the initial influent entry point, a second (or more) population of bacteria (mainly nitrifying bacteria) is established and/or maintained in a physically discrete part of the overall treatment reactor. This second (or more) population at a discrete location within the reactor is useful in the removal of ammonia from high CBOD influent when the reactor is exposed to low temperatures.07-21-2011
20090211969METHOD AND APPARATUS FOR ENHANCING AQUATIC ENVIRONMENTS - Submerged media useful with or without aeration and/or mixing to enhance an aquatic environment by promoting and retaining biogrowth. The media takes the form of a cluster of individual flexible elements having free ends. The media are submerged in a liquid such as a water or wastewater treatment basin or an aquaculture environment. The media are characterized by the ability to promote and retain microbial growth. The media clusters have substantial flow through thicknesses to provide a three dimensional effect along with baffling for increased contact with the liquid being treated. The media may be thin strips constructed to avoid sticking together to allow maximum exposed surface area. The media clusters can create oxic, anoxic and anaerobic environments for maximum treatment during flow through the media cluster. The flexibility of the media elements and their free ends automatically dislodges excessive biomass buildup to avoid clogging of the media.08-27-2009
20090152195Biofilm reactor - The present invention provides a reactor for the biological processing of fluid such as domestic or industrial waste water or the like, the reactor comprising a plurality of substantially horizontal layers of growth medium stacked one above the other, and having a colonizing biofilm thereon during use, the reactor being arranged to cause the path of flow of the fluid to reverse from one layer to the next, in order to maximize the length of the path of flow for a given footprint of the reactor.06-18-2009
20100320145METHOD FOR TREATING WASTE WATER - An apparatus and method for passively generating a current flow in a body of water is disclosed. The passive water circulating apparatus has an aeration plate having a central opening; a plurality of flotation members joined to the aeration plate, the plurality of flotation members being adapted and disposed for maintaining buoyancy of the aeration plate above a water surface; an uplift tube member having a central orifice in fluid communication with the central opening of the aeration plate; a concentrator member disposed at an end of the uplift tube opposite the aeration plate, the concentrator member having a bottom opening in fluid communication with an upper opening, the bottom opening being wider than the upper opening and the upper opening being connected to the uplift tube member; and a plurality of bio-substrates suspended from the concentrator member below the bottom opening, the plurality of bio-substrates providing a substrate for growth of microbes.12-23-2010
20110253625METHOD AND DEVICE FOR REMOVING BIOLOGICAL NITROGEN AND SUPPORT THEREFOR - Provided is a biological nitrogen removal method which includes, causing to flow a support having, on the surface portion thereof, a two-layered microbial film which holes, in the outer layer, nitrite type nitrifying bacteria or aerobic bacteria and nitrite type nitrifying bacteria as a dominant species and, in the inner layer, anaerobic ammonia oxidizing bacteria as a dominant species while being surrounded with the nitrite type nitrifying bacteria; and thereby carrying out denitrification of the water to be treated by making use of the anaerobic ammonia oxidation reaction. In the biological nitrogen removal method, a feed rate of the support (total surface area of the support per unit capacity of the reaction tank) is adjusted so that an amount of nitrous acid produced by the nitrite type nitrification reaction through the action of the nitrite type nitrifying bacteria reaches a level to inhibit a nitrate type nitrification reaction.10-20-2011
20110108479WASTEWATER TREATMENT SYSTEM - Disclosed is a system for treating wastewater. The system includes a microorganism clad structure positioned in a body of wastewater such that the microorganism clad structure is at least partially submerged in the body of wastewater. The apparatus also includes an aeration device, such as a propeller-type, surface mounted aeration device, supplying a horizontal flow of oxygenated water to the microorganisms attached to the microorganism clad structure such that the microorganisms may carry out a biological process.05-12-2011
20110042308Method for cleaning filtration membrane modules and membrane bioreactor system for treating untreated water or wastewater or activated sludge - A method of cleaning filtration modules for the treatment of raw water, or wastewater, or activated sludge, is provided by circulating particles in untreated water. The deposits located on the filter membrane outer surfaces are removed by the mechanical action of the particles, without significantly damaging the membrane. Initially, untreated water, wastewater, or activated sludge is chemically-mechanically pretreated. Then the untreated water or wastewater polluted with biologically active material is discharged into a membrane bioreactor system having a filtration unit including at least one filtration tank. At least one submerged filtration membrane module is present in the filtration tank. The untreated water or wastewater in this filtration tank is filled with particles and circulates inside the filtration tank. The particles are non-porous, biologically resistant polymer particles. Alternatively, a cleaning tank including a circulating fluid containing particles may be provided for the temporary accommodation of the filtration module.02-24-2011
20110259822APPARATUS AND PROCESS FOR DESALINATION OF BRACKISH WATER - Water from underground and other sources of water are brackish and not suitable for human consumption. Naturally present dissolved chemicals in water make it brackish. The precipitants and dissolved chemicals need to be separated from water to make it consumable. A combination of aeration systems, filtration systems, crystallizers and hydrophobic membrane carrying filter are used to desalinate the brackish water. Solar energy and ceramic filters are used as add on to existing technology. Various heat exchange apparatus are used for energy conservation and efficient processing of water in a feasible way. The disclosure enables to purify water and provide a useful technology to eradicate water scarcity.10-27-2011
20110186508MEMBRANE BIOFILM REACTOR FOR REMOVING CONTAMINANTS FROM GROUND WATER - Apparatus and methods for water treatment are described, particularly for the simultaneous removal of nitrate, perchlorate, and other organic contaminates from contaminated water using a membrane biofilm reactor (MBfR).08-04-2011
20120097608SUSPENDED MEDIA MEMBRANE BIOLOGICAL REACTOR SYSTEM AND PROCESS INCLUDING SUSPENSION SYSTEM - A wastewater treatment system is provided comprising a biological reactor having a separation subsystem, a suspension system and a membrane operating system. The separation subsystem is constructed and arranged to maintain adsorbent material in the biological reactor with a mixed liquor. The suspension system is positioned in the biological reactor and is constructed and arranged to maintain adsorbent material in suspension with mixed liquor. The membrane operating system is located downstream of the biological reactor and is constructed and arranged to receive treated mixed liquor from the biological reactor and discharge a membrane permeate.04-26-2012
20120055869WATER TREATMENT REACTOR SCREENING SYSTEM AND METHOD - A screen configuration is provided for the extraction of wastewater from a wastewater reactor, while precluding the entry of biological support media. The screen may be formed as a tubular structure, and may be drum-like or have wings in a T-shaped configuration. A flow modifier within the screen may include one or more tubes extending into the screen and forming annular sections around the tubes. Flow through the screen, then, is directed around the inner flow modifier tubes and through the tubes. The resulting pressures and flow velocities are such that slot velocities through openings in the screen are generally constant along the length of the screen, and the flow is more efficiently distributed. The screen may be reduced in length as compared to conventional wastewater treatment screens.03-08-2012
20120152832SUBMERGED SYSTEM AND METHOD FOR REMOVAL OF UNDESIRABLE SUBSTANCES FROM AQUEOUS MEDIA - A system and method are provided for removal of undesirable substances from a body of liquid. The system can include an aeration structure having a continuously inclined surface configured to provide an interaction of air bubbles against substantially an entire length of the continuously inclined surface while the air bubbles are moving toward a top of the body of liquid. The continuously inclined surface can be substantially submerged in the body of liquid. A bio-film of diverse bacteria colonies is disposed on the continuously inclined surface, and a high surface area-to-volume structure is located in proximity to the aeration structure, upon which a bio-film of bacteria colonies can be formed. An aeration system is coupled to an air supply system which releases the air bubbles toward a bottom of the continuously inclined surface, such that the air bubbles move along the continuously inclined surface as they rise so as to (i) create a variety of aerobic-anaerobic conditions at the bio-film and (ii) engage the air bubbles in a continuous mixing of a micro climate for the bio-film in response to an orientation of the continuously inclined surface and (iii) provide airlift circulation of water from bottom to top of the aeration structure.06-21-2012
20120125839HOLLOW FIBER MEMBRANE MODULE, HOLLOW FIBER MEMBRANE MODULE UNIT, AND WATER TREATMENT METHOD - A hollow fiber membrane module, a hollow fiber membrane module unit, and a water treatment method. 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 have excellent durability. The hollow fiber membrane module is formed so 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.05-24-2012
20110180474RADIAL FLOW MEMBRANE BIOFILM REACTOR - A membrane biofilm reactor (MBfR) device for treatment of water avoiding biofouling comprising: a central core tube having a wall defining a lumen and one or more perforations in the wall defining a perforated region, the core tube further having a first open end and second substantially closed end; a plurality of hollow filaments, each filament having a wall that defines an inner lumen, an exterior surface, a first end, and a second end; and a case having a cavity, a first end cap, a second end cap, and at least one effluent port; wherein the first open end of the core tube is sealed in the first end cap with the perforated region extending into the central cavity of the case, and wherein the first ends of the plurality of hollow filaments are open and sealed in the first end cap and the second ends of the plurality of hollow filaments are open and sealed in the second end cap.07-28-2011
20120312744AQUARIUM FILTER MEDIA INCLUDING NANOFIBERS - A filtration device for an aquarium comprising a filtering chamber for receiving water and a filter medium therein wherein said filter medium comprises fibers having a diameter from 0.1 nm to 3000 nm and an aspect ratio of length to diameter of 5:1 to 10,000 to 1 wherein said fibers provide for colonization of nitrosomonas bacterium and/or nitrobacteria.12-13-2012
20120228216FLOATING WATER TREATMENT DEVICE - A floating water treatment device for biological treatment of water in a body of water, the device comprising: a submerged biomass-carrying system having at least one biomass-carrying element; a water aeration device adapted to aerate the water in the body of water in the vicinity of the biomass-carrying system; and at least one flotation system, having at least one floating element, the at least one flotation system adapted to float on the surface of the body of water and to support the submerged biomass-carrying system and water aeration device from totally submerging into the body of water.09-13-2012
20100326907METHOD AND DEVICE FOR REMOVING CONTAMINATES FROM FLUID-MATERIAL - A method for removing contaminants from a fluid-material comprising: providing at least one substrate comprising a three-dimensional knit in an initial configuration made of knitted polymeric fiber which substantially resumes the initial configuration after it is released from stretching or compressing force; and submerging said at least one substrate in a fluidic material for treatment of the fluidic material.12-30-2010
20100230349 UNIT, A PLANT AND A METHOD FOR TREATMENT OF POLLUTED WATER - A unit comprising the components necessary for performing waste water treatment renders it simple and cheap to establish purification of water in small scale at remote locations.09-16-2010
20120325740ORGANISM METABOLITES FOR REMOVAL OF POLLUTANTS FROM BRINE - This disclosure relates generally to methods, apparatuses, and cellular compositions and cellular products for purifying environmental liquids, such as wastewater and brine, using halophilic bacteria that produce, or can be made to produce, siderophore metal chelators.12-27-2012
20130126427METHOD FOR THE REMEDIATION OF SALT CONTAINING WASTEWATER STREAMS - In some embodiments, a wastewater treatment system may reduce contaminants in water. A system may include one or more bioreactors which include a substrate that supports a biofilm. The bacteria used to form the biofilm may be selected to maximize the reduction of contaminants in water. Various components of the wastewater treatment system may be optimized to improve the efficiency and energy consumption of the wastewater system.05-23-2013
20130134091Portable Biofilter and Degasser - The present invention relates to a portable biofilter and degasser.05-30-2013
20100300964Biological filter for oxidizing ammonia in drinking water treatment - A process for treatment of water to convert ammonia to nitrate including: feeding water containing dissolved ammonia, as an influent introducing water to be treated, into a packed column containing filter media as packing; introducing air through a diffuser at the bottom of the packed column to maintain the water saturated with oxygen throughout the packed column; establishing colonies of bacteria converting ammonia to nitrate within the column; and removing an ammonia-free and nitrite-fee effluent from the column.12-02-2010
20120273414DIFFUSION AERATION FOR WATER AND WASTEWATER TREATMENT - A system for treating wastewater including at least one water-treatment pathway having at least one wastewater inlet, at least one oxygen-permeable, water-impermeable wall, separating an interior of the pathway from outside air, and at least one treated wastewater outlet and arranged for at least aerobic treatment of the wastewater as it flows from the at least one wastewater inlet to the at least one treated wastewater outlet, at least one wastewater supply conduit, supplying the wastewater to the at least one wastewater inlet of the water-treatment pathway and at least one treated wastewater conduit, supplying treated wastewater from the at least one treated wastewater outlet of the at least one water-treatment pathway.11-01-2012
20130153493MOVING BED MEMBRANE BIOREACTOR - This disclosure relates to a moving bed membrane bioreactor. The moving bed membrane bioreactor package plant comprises a pre-treatment system, a moving bed membrane bioreactor, and a post-treatment system. This disclosure further relates to mechanical devices and operational processes for a moving bed membrane bioreactor package plant for greywater and wastewater reclamation and reuse. This disclosure further relates to a bioreactor for greywater reclamation that integrates biofilm carriers with a hollow fibre membrane module and dual aeration system.06-20-2013
20100314313DESALINATION SYSTEM AND METHOD OF WASTEWATER TREATMENT - Various embodiments described herein provide methods and apparatus for releasing treated wastewater into the environment by combining the treated wastewater with a concentrated salty water before discharging the combined water into the environment. The treated wastewater and concentrated salty water may be combined in a ratio that will be less toxic to at least some resident marine life than the treated wastewater alone.12-16-2010
20110303605Electrobiochemical Reactor - A method for removing a target compound from a liquid can include arranging two active surfaces so as to be separated by a distance. The active surfaces can be placed within a flow of the liquid and can be capable of supporting an electrical charge, biological growth, and/or enzymes and proteins. The method can further include developing a population of microorganisms concentrated on the active surfaces where the population of microorganisms is configured to or capable of transformation of the target compounds. The method can further include developing enzymes or proteins concentrated on the active surfaces where the enzymes or proteins are configured to or capable of transformation of the target compounds. The method can further include applying a potential difference between the two active surfaces. The microorganisms and the potential difference can be sufficient in combination and/or with specific nutrients to remove the target compound from the liquid and maintain the population of microorganisms. The enzymes and proteins and the potential difference can be sufficient in combination to remove the target compound from the liquid.12-15-2011
20110315628System and method for capturing and bioremediating hydrocarbon pollutants using dynamic filters - A dynamic filter member comprising a mass of lipophilic, hydrophobic fibers and bioremediating microbes, said filter member having a sufficient volume of interstitial areas such that water flow through said filter member is substantially unimpeded.12-29-2011
20130193069Fluid Treatment System - A system for treating an effluent includes a cap assembly and a reactor module. The cap assembly captures the effluent discharge from a source. The reaction module includes a reaction chamber housing a substrate and an illumination device. In operation, the effluent is drawn into the cap assembly and directed downstream, into the reactor module. The effluent flows over the substrate, causing adsorption of bacteria to substrate. Additionally, the illumination device is selectively activated to direct photons toward the effluent for selected periods of time. With this configuration, a biomass formed of algae develops in the reaction chamber (e.g., on the substrate). The biomass is effective to reduce the amount of contaminates within the effluent.08-01-2013
20130193068MODIFICATION OF EXISTING WASTEWATER SYSTEMS WITH SUBSTRATE SUPPORTED BIOFILMS - In some embodiments, a wastewater treatment system may reduce contaminants in water. A system may include one or more basins which include a substrate that supports a biofilm. The bacteria used to form the biofilm may be selected to maximize the reduction of contaminants in water. Various components of the wastewater treatment system may be optimized to improve the efficiency and energy consumption of the wastewater system.08-01-2013
20120055870CARRIER ELEMENT, BIOLOGICAL WATER TREATMENT SYSTEM AND THEIR USE, AND METHOD FOR BIOLOGICALLY TREATING WASTE WATER - The invention relates to a carrier element for an aerobic biological water treatment system. The carrier element has a first end and a second end at a distance from each other, the maximum diameter of the first end being larger than the maximum diameter of the second end. It also has biofilm growing surface structures that extend from the first end to the second end and from inner part of the element towards periphery of the element and at least two support structures that encircle the growing surface structures at the periphery of the element and connect the growing surface structures to each other. The support structures define the outer boundary surface of the carrier element, whereby the support structures are spaced from each other so that apertures allowing access to the biofilm growing surface structures are formed between the support structures. The invention relates also to a water treatment system employing the carrier elements.03-08-2012

Patent applications in class Utilizing contact surfaces supporting microorganism (e.g., trickling filter, etc.)

Patent applications in all subclasses Utilizing contact surfaces supporting microorganism (e.g., trickling filter, etc.)