| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 06/17/2004 | US20040113293 Cyclic aeration system for submerged membrane modules |
| 06/17/2004 | US20040113288 Air aspirator-mixer |
| 06/17/2004 | US20040112846 Filtration particles from fluid flow using meshes; rotating member,pumps; water pollution control |
| 06/17/2004 | US20040112831 immersed membrane in tank; connecting to air blower, valves and controllers; alternating air flow, uniform speed |
| 06/17/2004 | US20040112829 Continous processing; automatic; aeration |
| 06/17/2004 | US20040112813 Purifying device |
| 06/17/2004 | US20040112809 a reactor with aerobic, anoxic and immersed membrane tanks or zones with conduits for circulating tank water or mixed liquor from the membrane tank/zone to the anoxic tank/zone to the aerobic tank/zone and back to the membrane tank/zone; for waste water treatment |
| 06/17/2004 | DE10255064A1 Verfahren zum Behandeln von radioaktivem Abwasser A method of treating radioactive waste water |
| 06/17/2004 | CA2507384A1 Aquarium-cleaning device utilizing formed charcoal |
| 06/17/2004 | CA2414476A1 Treatment system for biopollution contained in industrial water |
| 06/16/2004 | EP1428800A1 Process and device for controlling and regulating a waste water treatment process |
| 06/16/2004 | EP1428564A1 Water treatment apparatus such as a biofilter comprising ejector for gas-water mixtures for washing the apparatus |
| 06/16/2004 | EP1427675A2 Sustainable process for the treatment and detoxification of liquid waste |
| 06/16/2004 | EP1084084B1 Biological purification of water to any degree up to and drinking water |
| 06/16/2004 | EP1007481B1 Integrated wastewater treatment system with induced sludge velocity |
| 06/16/2004 | EP0977713B1 Air charged backwashing bioclarifier |
| 06/16/2004 | CN2620580Y Pipe flow micromixing structure |
| 06/16/2004 | CN1505595A Disintegration of anaerobically digested sewage sludge |
| 06/16/2004 | CN1504425A Livestock sewage disposal method of stock farm |
| 06/16/2004 | CN1153967C Method for measuring nitration/denitrification rate and Nox in liquid |
| 06/16/2004 | CN1153966C Apparatus and method for measuring ammonia in liquid |
| 06/16/2004 | CN1153738C Sewage treating plant with double-area gravity-elution membrane bioreactor |
| 06/15/2004 | US6749745 In-pipe wastewater treatment system |
| 06/15/2004 | US6749743 Fuel diverter for a recirculating wastewater treatment system |
| 06/12/2004 | CA2453089A1 Method and system for the treatment of wastewater |
| 06/10/2004 | WO2004049352A1 Method for treating radioactive waste water |
| 06/10/2004 | WO2004048282A1 Biological treatment method and biological treatment device |
| 06/10/2004 | WO2004048281A1 A method for supplying oxygen to a water purification process |
| 06/10/2004 | US20040110271 Treating animal waste with innoculums containing sulfide, phosphorous and nitrogen utilizing bacteria generating waste fraction comprising reduced fraction of phosphorous, nitrogen and sulfides; bioremediation |
| 06/10/2004 | US20040108268 Sealed membrane tank; pressurization; air lifting, circulation |
| 06/10/2004 | US20040108267 Method and device for the anaerobic purification of a slurry which contains organic constituents |
| 06/09/2004 | EP1426337A1 Process and plant for biological treatment of waste water |
| 06/09/2004 | DE10253334A1 Purification of sewage or other substances laden with harmful organic matter and detergent or clarifying agent also useful laundry and cleaning surfaces involve introduction of photosensitizer releasing singlet oxygen when stimulated |
| 06/09/2004 | CN2620104Y Sewage treatment electric generator |
| 06/09/2004 | CN1503765A Periphyton filtration pre- and post-treatment system and method |
| 06/09/2004 | CN1503689A Device for stirring and aerating a liguid in a treatment vessel |
| 06/09/2004 | CN1502573A Liquid aeration dispenser |
| 06/09/2004 | CN1502572A Corrosion-resisting light aeratino rotary disk and its preparation method |
| 06/09/2004 | CN1502571A Rotary disk type sewage treatment aerating apparatus |
| 06/09/2004 | CN1502570A Aerobic process waste water or sewage treatment aeration tank |
| 06/09/2004 | CN1502569A Trickling filter for biological treatment of waste water or sewage |
| 06/09/2004 | CN1502568A Liquid deflection type reactor |
| 06/09/2004 | CN1502423A Method for repairing arsenium contaminated environment |
| 06/09/2004 | CN1152958C Porous polymeric biosupports and their use in biotreatment of aqueous waste streams |
| 06/09/2004 | CN1152834C Processing system for drain off water |
| 06/09/2004 | CN1152833C Sewage purifier |
| 06/09/2004 | CN1152735C Equipment for agitating liquid in reactor and at same time jetting gas into said liquid |
| 06/03/2004 | WO2004046367A1 Process for anaerobic oxidation of methane |
| 06/03/2004 | WO2004046049A1 Waste activated sludge anaerobic contact waste stream treatment process |
| 06/03/2004 | WO2004046048A1 Purification block |
| 06/03/2004 | WO2004046037A2 Purification of contaminated water |
| 06/03/2004 | US20040106133 Method for detecting ammonia-oxidizing bacteria |
| 06/03/2004 | US20040104168 Irradiating coating material waste water with microwaves to decompose impurities; coagulation using flocculant or electrolysis; fluid flow to bath for anaerobic or aerobic processing |
| 06/03/2004 | DE19961195B4 Kleinkläranlage mit wenigstens einem Vorklärbecken und mit wenigstens einem Nachklärbecken Domestic wastewater treatment plant with at least one primary clarifiers and at least one secondary clarifier |
| 06/03/2004 | DE10245959A1 Biofilm reactor, for the treatment of waste water and sewage, combines nitrification and denitrification and sludge separation in a continuous process |
| 06/03/2004 | CA2506730A1 Process for anaerobic oxidation of methane |
| 06/03/2004 | CA2505047A1 Waste activated sludge anaerobic contact waste stream treatment process |
| 06/02/2004 | EP1423340A1 A method of biologically purifying waste water and a plant preferably a mini purification plant to be used by the method |
| 06/02/2004 | EP1423338A2 Membrane module for gas transfer and membrane supported biofilm process |
| 06/02/2004 | EP1423337A2 Biofilm reduction in crossflow filtration systems |
| 06/02/2004 | CN2618918Y 侧向流曝气生物滤池 Lateral flow BAF |
| 06/02/2004 | CN1500874A Method for producing immobilized microorganism carrier using treble tubes |
| 06/02/2004 | CN1500862A Microorganism solid leaven and preparing method thereof |
| 06/02/2004 | CN1500751A Decentralizing treating and utilizing technology for zero discharging sewage |
| 06/02/2004 | CN1500749A Modifying agent for microorganism breeding water and preparing method thereof |
| 06/02/2004 | CN1500543A Nonwoven fabric filtering-membrane pipe, its manufacture method and application |
| 06/02/2004 | CN1151985C Highly efficient micro-power consumption domestic sewage treater |
| 06/02/2004 | CN1151984C Bow shape penetrating flow type separator and bow shape penetrating flow type film biological reactor |
| 06/02/2004 | CN1151983C Integral type film biological reactor |
| 06/02/2004 | CN1151863C Membrane assembly for solid-liquid separation |
| 06/01/2004 | US6743362 With nitrification and denitrification achieved in single tank and with membrane separators in same tank to eliminate need for separate clarification |
| 06/01/2004 | US6743361 Method for bacterially treating tank toilet systems and apparatus for using same |
| 06/01/2004 | US6743357 Using diffusers to force circulation and aerate a digesting lagoon. several lagoons may be used in series to treat raw animal waste and different variations may be employed to successively digest raw waste. |
| 06/01/2004 | US6743353 Method and apparatus for neutralizing alkaline wastewater without using mineral acids |
| 06/01/2004 | CA2085217C Rotating biological aquarium filter system |
| 05/27/2004 | WO2004044102A1 Slurry production and storage system utilizing waste heat |
| 05/27/2004 | WO2004043868A1 Method for purifying waste water |
| 05/27/2004 | WO2004043867A2 Anaerobic fermenter |
| 05/27/2004 | WO2004043866A1 Apparatus for the biological treatment of wastewater |
| 05/27/2004 | US20040101946 Method of using ammonia-oxidizing bacteria |
| 05/27/2004 | US20040101944 Microbiological culture for triggering microbiological processes in water |
| 05/27/2004 | US20040099589 System and method for treating wastewater using coir filter |
| 05/27/2004 | US20040099588 System for treating wastewater |
| 05/27/2004 | DE10253302A1 Biological purification of garden pond water to break down nitrites, nitrates and phosphates, employs pump and water turbine for aeration, followed by filtration |
| 05/27/2004 | DE10252634A1 Purification of sewage or other substances laden with harmful organic matter and detergent or clarifying agent also useful laundry and cleaning surfaces involve introduction of photosensitizer releasing singlet oxygen when stimulated |
| 05/27/2004 | CA2505860A1 Anaerobic fermenter |
| 05/26/2004 | EP1421034A2 Method for biologically treating waste water containing dye from the textile and leather industry |
| 05/26/2004 | EP1185168B1 Method for improving conditions in closed circuit fish farming and installation therefore |
| 05/26/2004 | EP0938377B1 Light expanded clay aggregates for phosphorus removal |
| 05/26/2004 | CN2617762Y Double running mode biological dephosphorizing and denitrifying sewage treater |
| 05/26/2004 | CN2617761Y Sewage treating lifting helical flow biological reactor |
| 05/26/2004 | CN1500135A Black water recycle circulation loop use with gasifier |
| 05/26/2004 | CN1498865A Micro ecological agent for supporting water in fishing use and its prepn. method |
| 05/26/2004 | CN1498864A Ecotypic purifying water plant thereof |
| 05/26/2004 | CN1498863A Appts. and method for treatment of sewage, waste water, organics, nitrogen and phosphous by utilizing powerless internal/external circulating plant |
| 05/26/2004 | CN1498862A Power generation system based on sewerage treatment |
| 05/26/2004 | CN1151085C Process for treating sewage with zeolite filler in aerated biologic filter pool |
| 05/26/2004 | CN1150975C Spherical porous light haydite for treating waste water and its production method |
| 05/25/2004 | US6740232 Constructed wetlands system, treatment apparatus and method |
| 05/21/2004 | WO2004041733A1 Apparatus, system and mehtod for treating waste material |