| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 09/17/2003 | EP1343729A1 Microbiological composition |
| 09/17/2003 | EP1343728A2 Low oxygen organic waste bioconversion system |
| 09/17/2003 | EP1343370A2 Bacterial strain, processed plant extracts, compositions containing same, processes for their preparation and their therapeutic and industrial applications |
| 09/17/2003 | EP0906247B1 Wastewater treatment |
| 09/17/2003 | EP0728122B1 System and method for treatment of polluted water |
| 09/17/2003 | CN2573486Y Microbe symbiotic cylindrical carrier |
| 09/17/2003 | CN2573485Y Microbe symbiotic carrier |
| 09/17/2003 | CN1443141A Method for processing lignocellulosic material |
| 09/17/2003 | CN1443139A Effluent purifying device |
| 09/17/2003 | CN1442396A Amino acid organic and inorganic fertilizer producted by product of sodium glutamate and its production method |
| 09/17/2003 | CN1121351C Small scale efficient sewage treatment installation |
| 09/16/2003 | US6620611 Solid-chemical composition for sustained release of organic substrates and complex inorganic phosphates for bioremediation |
| 09/16/2003 | US6620323 Apparatus and process for biological wastewater purification |
| 09/16/2003 | US6620322 Apparatus and methods for purifying a waste influent material |
| 09/16/2003 | US6620321 Biofilter system and method for treating wastewater |
| 09/12/2003 | WO2003074429A1 An apparatus for circulation of a fluid |
| 09/12/2003 | WO2003074428A2 Pre- and post-treatment system and method for periphyton filtration using ozone |
| 09/12/2003 | WO2003029152A3 Method and device for purifying wastewaters |
| 09/11/2003 | US20030170877 Using gene from Ralstonia eutropha strain TB64; bioremediation |
| 09/11/2003 | US20030168411 Treating a nitrogen compound and a phosphorus compound in for-treatment water by electrochemical procedure, adding calcium chloride to the for-treatment water and a step of immersing an iron material in the for-treatment water |
| 09/11/2003 | US20030168403 For treatment of water contaminated with at least one alkoxy compound selected from branched alkyl ethers and branched alkyl alcohols which |
| 09/11/2003 | DE20310555U1 Static mixer for gas and liquid has upright pipe holding liquid with base pipe feed of gas to upright helical corrugated full-width strip |
| 09/11/2003 | DE10221824C1 Turbulent hydrodynamic mixer for solid - liquid systems in wastewater treatment, employs rotor on vertical shaft, whirlpool breaker and bed of fluidization spheres |
| 09/10/2003 | EP1343063A2 Wastewater treatment control system, terminal, computer program and accounting method |
| 09/10/2003 | EP1342802A1 Process for the recovery of elemental sulphur from slurries containing metal sulphides and elemental sulphur |
| 09/10/2003 | EP1342698A1 Proccess and installation for the biological treatment of industrial wastewaters |
| 09/10/2003 | EP1341597A1 Multistage immersion type membrane separator and high-concentration wastewater treatment facility using same |
| 09/10/2003 | EP1246778B1 Treatment of aqueous media containing electrically charged compounds |
| 09/10/2003 | CN2571746Y Pretreatment device for suspension filler primary aquatic creature |
| 09/10/2003 | CN1441751A Formation of composite materials with expandable matter |
| 09/10/2003 | CN1440938A Bamboo planting method for treating sewage |
| 09/10/2003 | CN1440932A Membrane bioreactor |
| 09/10/2003 | CN1120809C Waste water treating apparatus |
| 09/09/2003 | US6617155 Vertically elongate central manifold having a plurality of openings; filtrate is ejected horizontally from the openings |
| 09/09/2003 | US6617150 Solid-chemical composition for biodegradation comprising plant fiber-containing material and enzymes |
| 09/09/2003 | US6616845 Method and apparatus for biological wastewater treatment |
| 09/09/2003 | US6616844 Anaerobic ammonium oxidization; denitrification via activated microorganisms within soil/livestock wastewater |
| 09/09/2003 | US6616843 Submerged membrane bioreactor for treatment of nitrogen containing water |
| 09/09/2003 | US6616832 Multi-layer recirculating filter wastewater treatment apparatus |
| 09/09/2003 | CA2314689C Biofiltering system for treating wastewater effluent |
| 09/09/2003 | CA2135897C System and process for purifying waste water which contains nitrogenous compounds |
| 09/04/2003 | WO2003072513A1 Membrane bioreactor |
| 09/04/2003 | WO2003072512A1 Wastewater treatment apparatus and method for removing nitrogen and phosphorus |
| 09/04/2003 | WO2003072507A1 Microbubbles of oxygen |
| 09/04/2003 | WO2002038508A8 Low oxygen organic waste bioconversion system |
| 09/04/2003 | US20030164331 Wastewater is introduced into an aerated activated sludge tank and then sedimentation and recirculation tanks; after separation activated sludge is returned; clear waters is drawn off |
| 09/04/2003 | US20030164330 Bioreactor carrier, process for producing the carrier and method for using the same |
| 09/04/2003 | US20030164329 Continuous flow reactor wastewater treatment plant |
| 09/04/2003 | US20030164306 Microbubbles of oxygen |
| 09/04/2003 | CA2476576A1 Microbubbles of oxygen |
| 09/03/2003 | EP1340720A1 Method for biological purification of water and wastewater |
| 09/03/2003 | EP1339823A2 Detergent |
| 09/03/2003 | EP1265819B1 Method and device for effluent treatment |
| 09/03/2003 | EP1124763B1 Treatment of water containing carbonaceous solids |
| 09/03/2003 | EP0968138B1 A method for treating sludge from wastewater treatment |
| 09/03/2003 | CN2570286Y Film-bioreactor with flow passage |
| 09/03/2003 | CN2570264Y Microporous flexible sheet hose aeration equipment |
| 09/03/2003 | CN2570263Y Anaerobic and aerobic integrated sewage treating device |
| 09/03/2003 | CN2570262Y Separation and aeration dual-purpose film-bioreactor sewage treatment facilities |
| 09/03/2003 | CN2570261Y Suspension type deep purifying ball |
| 09/03/2003 | CN2570260Y Sewage treatment combination fixture |
| 09/03/2003 | CN2570259Y Reinforced water distribution type underground diffusion sewage treating apparatus |
| 09/03/2003 | CN2570258Y Control device of film-bioreactor |
| 09/03/2003 | CN2570253Y Multi-process integrated waste water treatment facilities |
| 09/03/2003 | CN1440368A Three-phase separation device for treating waste water and sludge |
| 09/03/2003 | CN1439710A Environment protecting bacteria for stool fermentation and its preparation |
| 09/03/2003 | CN1439611A Urban sewage treatment |
| 09/03/2003 | CN1439610A Energy-saving oxygenation system in sewage treatment |
| 09/03/2003 | CN1439609A Bio-oxidation of ammonia-nitrogen in waste water from circuit board production |
| 09/03/2003 | CN1120131C Purifying treatment method for diffusion water of garbage burying ground |
| 09/03/2003 | CN1120042C Filler with position limitation |
| 09/02/2003 | US6613559 Simultaneous decolorization and detoxification of molasses spent wash using novel white rot-lignin-modifying fungus Flavodon flavus |
| 09/02/2003 | US6613229 Denitrification where the amount of oxygen is severely limited; new waste containing little oxygen, enters the denitrification chamber where it is mixed with sludge returned from the aerator; activated sludge and fixed film processes |
| 09/02/2003 | US6613222 Apparatus for the treatment of waste water |
| 09/02/2003 | CA2306553C A method of preparing a microbial culture for wastewater treatment |
| 08/28/2003 | WO2003070873A2 Cultivation method for micro-organisms and bioreactor |
| 08/28/2003 | WO2003070649A1 Aerobic biomass granules for waste water treatment |
| 08/28/2003 | WO2003045848A3 Microbiological energy source for operating a consumer |
| 08/28/2003 | WO2003043939A3 Method and apparatus for the treatment of particulate biodegradable organic waste |
| 08/28/2003 | US20030159991 Aerobic biomass granules for waste water treatment |
| 08/28/2003 | US20030159990 Method of using water soluble polymers in a membrane biological reactor |
| 08/28/2003 | US20030159989 Method and apparatus for in-situ microbial seeding |
| 08/28/2003 | US20030159988 Method and apparatus for treating wastewater using membrane filters |
| 08/28/2003 | US20030159987 Water pollution control using plants |
| 08/27/2003 | EP1338571A1 Waste water treatment unit |
| 08/27/2003 | EP1338570A1 Anchorable, modular and stackable plastic tank for a water treatment plant |
| 08/27/2003 | EP1338566A1 Device for waste water purification by the activated sludge process |
| 08/27/2003 | EP1337628A1 Production process and composition of an enzymatic preparation, and its use for the treatment of domestic and industrial effluents of high fat, protein and/or carbohydrate content |
| 08/27/2003 | EP1337478A2 Process and apparatus for treating wastewater |
| 08/27/2003 | EP1337477A1 Improved aerator and mixer |
| 08/27/2003 | EP1337476A1 Method for separating gas, water and biomass and three-phase separating system |
| 08/27/2003 | EP1337475A2 Polyhydroxyalkanoate levels as an indicator of bioreactor health |
| 08/27/2003 | EP1337474A2 Processes and systems for treating wastewater |
| 08/27/2003 | EP1121330A4 Wastewater treatment system |
| 08/27/2003 | EP1044168B1 Polylactate release compounds and methods of using same |
| 08/27/2003 | CN2568636Y Contact oxidation biological filter cell adapting suspension filtering material |
| 08/27/2003 | CN2568635Y Easy-to-move membrane bioreator |
| 08/27/2003 | CN2568634Y Urban sewage treatment system using oxygen rotary organism |
| 08/27/2003 | CN1119299C House refuse and sewage source head comprehensive zero tendency treatment method and its system |
| 08/27/2003 | CN1119296C Anerobic sewage treatment technology using a vertical deflecting biochemical reactor |