| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 08/27/2002 | US6439853 Water circulation apparatus and method |
| 08/23/2002 | CA2337568A1 Method of anaerobic activated sludge contact treatment of sewage and organic wastewater |
| 08/22/2002 | WO2002064515A1 Method for biological nutrient control |
| 08/22/2002 | WO2002064514A1 Self-adaptive method for regulating an effluent treating plant, in particular for waste water |
| 08/22/2002 | WO2002064508A2 Wastewater treatment system and method of control |
| 08/22/2002 | WO2002064273A1 Method and system for treating organic matter utilizing substance circulation system |
| 08/22/2002 | WO2002044309A3 Detergent |
| 08/22/2002 | US20020113013 Aeration system for wastewater |
| 08/22/2002 | US20020113011 Waste treatment method and apparatus with denitrification chamber |
| 08/22/2002 | US20020113010 Waste treatment method and apparatus with integral clarifier |
| 08/22/2002 | CA2438579A1 Method and system for treating organic matter utilizing substance circulation system |
| 08/22/2002 | CA2437637A1 Self-adaptive method for regulating an effluent treating plant, in particular for waste water |
| 08/21/2002 | EP1232123A1 A biofuel cell using wastewater and active sludge for wastewater treatment |
| 08/21/2002 | CN2506633Y Combined high-efficient biological septic tank |
| 08/21/2002 | CN2506627Y All plastics automatic sewage treating machine |
| 08/21/2002 | CN1365595A Method and apparatus for manufacturing organic EL display |
| 08/21/2002 | CN1364731A Jet aeration reactor used in active sludge method and its jet aeration process |
| 08/21/2002 | CN1089317C Multiple air layer liquid processing system |
| 08/21/2002 | CN1089267C Improving mixing and aerating apparatus |
| 08/20/2002 | US6436289 Vertical membrane storage system and method of storing liquids using the same |
| 08/20/2002 | US6436288 Reservoirs, pumps, filters, and ventillators having natural fibers and microorganisms, used for waste water treatment; pollution control |
| 08/20/2002 | CA2238729C Secondary sewage treatment system |
| 08/15/2002 | WO2002063024A2 Sustained totipotent culture of selected monocot genera |
| 08/15/2002 | WO2002063023A2 Sustained totipotent regenerable tissue culture of arundo donax (giant reed) and totipotent tissue and plants produced therefrom |
| 08/15/2002 | WO2002062710A1 Filter equipment and process for the treatment of waste water containing inorganic, organic pollution and/or pathogens |
| 08/15/2002 | WO2002062707A1 Device for treatment and cleansing of liquids |
| 08/14/2002 | EP1231267A1 Trace element-containing carrier for growing microorganism |
| 08/14/2002 | EP1230175A1 Method for treating waste water in a biological sewage plant and device appropriate therefor |
| 08/14/2002 | EP1230174A1 Method for treating aqueous effluents containing peroxidized compounds |
| 08/14/2002 | EP1230173A1 Apparatus for processing fluids |
| 08/14/2002 | EP1230172A1 Method and device for biologically purifying waste water |
| 08/14/2002 | EP1230171A1 Electrolytic water treatment with rotating radial electrodes |
| 08/14/2002 | EP1230169A1 Process for the purification of industrial waste water from a propylene oxide production process |
| 08/14/2002 | EP1027292B1 A process for biological purification of waste water under sludge retention |
| 08/14/2002 | DE10116708A1 Gepreßte Festbettfilter zur Wasserreiningung Pressed fixed-bed filter for Water Purifiers |
| 08/14/2002 | CN1364146A Biofuel cell using wastewater and active sludge for wastewater treatment |
| 08/14/2002 | CN1363526A Process and equipment for filtering liquid mixture of bioreactor by dynamic membrane |
| 08/14/2002 | CN1363525A Process for bio-denitrifying sewage |
| 08/13/2002 | US6432693 Iron and manganese |
| 08/13/2002 | US6432302 Water circulation apparatus system and method |
| 08/13/2002 | CA2158426C Process for regulating the aeration of a waste water biological treatment tank |
| 08/08/2002 | WO2002060552A2 Method for recovering a disposal trench with a biomat slime, and method for operating a waste treatment vessel |
| 08/08/2002 | US20020105100 Gas dissolving apparatus and method |
| 08/08/2002 | US20020104798 For removing phosphorus and/or nitrogen from wastewater, a settling tank, an anaerobic tank, and an aerobic tank; crushing at least a portion of sediment in the settling tank; and supplying the sediment to the anaerobic tank |
| 08/08/2002 | DE10104720A1 Verfahren zur biologischen Reinigung von Abwässern Process for the biological purification of waste water |
| 08/07/2002 | EP1229003A1 A method of treating sewage |
| 08/07/2002 | EP1228007A1 Fluid treatment apparatus |
| 08/07/2002 | EP1199909A9 Method and apparatus for manufacturing organic el display |
| 08/07/2002 | EP0931767B1 Carrier-separating and water-collecting mechanism of wastewater treatment equipment |
| 08/07/2002 | CN1088687C Device for in-tube gad dilation and dissolving |
| 08/06/2002 | US6428701 Suspending self-powered feeder in manhole, placing solid microbe-containing wastewater treatment substance into feeder, automatically dispensing predetermined quantity of substance from feeder into waste water flowing in sewer |
| 08/06/2002 | US6428691 Biological waste water treatment system |
| 08/06/2002 | US6428239 Vadose zone for a leaching field |
| 08/06/2002 | CA2175762C Water aerator |
| 08/06/2002 | CA2172067C Rotating biological filter system |
| 08/01/2002 | WO2002059044A2 Activated sludge wastewater treatment process |
| 08/01/2002 | WO2002036499A3 Treatment of waste water and apparatus therefor |
| 08/01/2002 | US20020103347 Purifying t0oxin from water; obtain water sample, incubate with microorganism, recover purified water |
| 08/01/2002 | US20020100730 System and method for waste water treatment capable of saving energy and reducing suspended solids |
| 08/01/2002 | US20020100718 Introducing waste water into anaerobic tank and aerobic tank, comprising calcium carbonate mineral placed in anaerobic tank; biologically treated water of another system introduced into aerobic tank; calcium carbonate mineral placed in aerobic tank |
| 07/31/2002 | EP1227066A2 Method and Apparatus for the biological treatment of municipal, industrial or commercial waste water |
| 07/31/2002 | EP1227065A2 Method of removing exogenous endocrine-disrupting chemical in water |
| 07/31/2002 | EP1226882A1 Method for decomposing refractory hazardous substance and decomposing agent |
| 07/31/2002 | EP1226096A1 Method and device for biologically purifying waste water |
| 07/31/2002 | EP1226095A1 Method for eliminating organic material resistant to biological treatment |
| 07/31/2002 | EP1156871A4 Diffuser assembly |
| 07/31/2002 | EP1089808A4 Dual diffuser assembly |
| 07/30/2002 | US6426004 Continuous flow completely mixed waste water treatment method |
| 07/30/2002 | US6425975 Process for concentrating soluble and colloidal substances in process waters |
| 07/25/2002 | WO2002057189A1 An anaerobic bioreactor for the wastewater-treatment plant |
| 07/25/2002 | WO2002056996A1 Filter |
| 07/25/2002 | WO2002056995A1 Water filter |
| 07/25/2002 | US20020096477 Process for treating liquid manure |
| 07/25/2002 | US20020096472 Adjusting pH of wastewater to near neutral pH, initiating bioactivity by addition of bioreactor waste-activated sludge to create a reaction with selected microorganisms in wastewater, aerating, aerobically reacting residue |
| 07/25/2002 | US20020096471 Enclosed space containing liquefied digestible biomass, space above liquor filled with vapor and gaseous products of digestion, means for creating vacuum to produce liquid vapor, means for removing gaseous products; self powered |
| 07/25/2002 | DE10102467A1 Method for treating effluent containing water-soluble lacquer components comprises acidifying it to precipitate out material which is impossible to biodegrade, product then being neutralized and treated in bioreactor |
| 07/25/2002 | CA2434358A1 Water filter |
| 07/24/2002 | EP1224965A1 Device and method for separating a permeate |
| 07/24/2002 | EP1224269A1 A method for treating biofilm and other slime products with endo-beta-1,2-galactanase |
| 07/24/2002 | CN2501566Y Nonmetallic integrated gas and liquid distributor |
| 07/24/2002 | CN1360677A Electrochemical method for enrichment of microorganism, biosensor for analyzing organic substance and BOD |
| 07/24/2002 | CN1360560A Process and apparatus for treating waste water |
| 07/24/2002 | CN1360023A Pseudomonads GT 241-1 for degradating chloro-aromatic compound and aromatic compound and its application |
| 07/24/2002 | CN1359861A Multi-stage circulating aerating tower |
| 07/24/2002 | CN1359859A Improved process for primary treatment of sewage in urban area |
| 07/23/2002 | US6423533 Isolation and use of perchlorate and nitrate reducing bacteria |
| 07/23/2002 | US6423236 Method for treating waste water |
| 07/23/2002 | US6423229 Bioreactor systems for biological nutrient removal |
| 07/23/2002 | US6423228 Using calcium carbonate |
| 07/23/2002 | US6423216 Biological oxidation filter system |
| 07/23/2002 | US6423214 Device for decanting supernatant |
| 07/18/2002 | WO2002055442A1 A process and apparatus for submerged biodepuration of effluents disposed of in the sea |
| 07/18/2002 | WO2002055441A1 Apparatus and method for biological treatment of environmental contaminants and waste |
| 07/18/2002 | WO2001097958A9 Fine air bubble generator and fine air bubble generating device with the generator |
| 07/18/2002 | CA2434032A1 Apparatus and method for biological treatment of environmental contaminants and waste |
| 07/17/2002 | EP1223148A1 Device for the injection and dissolution of oxygen in water effluents |
| 07/17/2002 | CN2500677Y Ribbed anti-tearing porous aerator diaphragm |
| 07/17/2002 | CN2500676Y Sewage bio-treater |
| 07/17/2002 | CN2500675Y Multi-pipe aerobic internal circulation three-phase biological fluidized bed |
| 07/17/2002 | CN1358677A Method for purifying sewage by microbe |