| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 09/22/2004 | CN1530433A Biological membrane carrier for improving specific surface area, and biological affinity and fluidity |
| 09/22/2004 | CN1530351A Alcohol liquid waste treating method for sugar refinery |
| 09/22/2004 | CN1530337A Treating method for increasing concentration of easily resolutive organics in denitrifying and deoxygenating reaction |
| 09/22/2004 | CN1530336A Biological recovery of small eutrophic water body |
| 09/22/2004 | CN1167635C Automatic hydraulic inflating stirrer and method of utilizing it in purifying water |
| 09/22/2004 | CN1167632C Waste water treatment method for removing organic matter and nitrogen |
| 09/22/2004 | CN1167631C Ball butterfly magnetic biological filling material |
| 09/22/2004 | CN1167517C Microbiological parts washing system, washing apparatus, controller and conversion reagent box |
| 09/21/2004 | US6793823 Employs reintroduction of return activated sludge as natural flocculent prior to tertiary filtration; eliminates chemical coagulants |
| 09/21/2004 | US6793822 Aerobic biomass granules for waste water treatment |
| 09/21/2004 | US6793813 Sealed filtration system |
| 09/21/2004 | US6793810 Waste water treatment apparatus |
| 09/16/2004 | WO2004079030A2 Composite material for a permeable reactive barrier |
| 09/16/2004 | WO2004078660A1 Device for mixing and feeding negative ion oxygen and magnetization water |
| 09/16/2004 | WO2004078655A2 A system for treating wastewater |
| 09/16/2004 | US20040180424 Using sulfur oxidizing bacteria to reduce odor from wastewater and sewer treatment facilities; bioremediation; biodegradation |
| 09/16/2004 | US20040178144 Airlift membrane device and membrane bioreactor and bioreactor process containing same |
| 09/16/2004 | US20040178132 Liquid-solid circulating fluidized bed waste water treatment system for simultaneous carbon, nitrogen and phosphorus removal |
| 09/16/2004 | DE19930544B4 Verfahren zum enzymatischen Abbau von halogenorganischen Schadstoffen in festen und wäßrigen Systemen A method for the enzymatic degradation of halogenated organic pollutants in solid and aqueous systems |
| 09/16/2004 | CA2526414A1 A system for treating wastewater |
| 09/16/2004 | CA2519793A1 Composite material for a permeable reactive barrier |
| 09/15/2004 | EP1457566A1 Method of producing hydrogen gas by using hydrogen bacteria |
| 09/15/2004 | EP1457463A1 Method of breaking down organic compounds present in industrial effluents using enzymatic reactors and the application thereof in the discoloration of industrial dyes |
| 09/15/2004 | EP1456343A1 A process for the anaerobic treatment of flowable and nonflowable organic waste |
| 09/15/2004 | EP1456157A1 System and method for extracting energy from agricultural waste |
| 09/15/2004 | EP1456137A1 Clarification basin membrane |
| 09/15/2004 | EP1456136A1 Method and device for biological treatment of effluents with high ammonium content |
| 09/15/2004 | EP1456135A2 Process for recovering and recycling compounds contained in effluents of the delignification and bleaching in pulp mills |
| 09/15/2004 | EP1234049A4 Process for production of biopolymers from nitrogen deficient wastewater |
| 09/15/2004 | EP1137602B1 Method for treating sludge derived from biological purification plants |
| 09/15/2004 | CN2641039Y Continuous plant material sewage filter |
| 09/15/2004 | CN2641038Y Flush eddy biological reactor |
| 09/15/2004 | CN2641037Y Small life sewage treatment plant |
| 09/15/2004 | CN2641036Y Multipolar active sludge sewage treatment plant with counterflow aeration |
| 09/15/2004 | CN2641035Y Air supply low pressure jet aerator |
| 09/15/2004 | CN2641034Y Multipolar composite biochemical sewage treatment plant with counterflow aeration |
| 09/15/2004 | CN2641033Y Multipolar biofilm sewage treatment plant with counterflow aeration |
| 09/15/2004 | CN1528681A Live bacterial microorganism water modifier equipped with activating culture medium and manufacturing process thereof |
| 09/15/2004 | CN1528680A Municipal sewage composite artificial wet land denitrifying and dephosphorizing method |
| 09/15/2004 | CN1166575C Water treatment system based on denitrificaton |
| 09/15/2004 | CN1166571C Integrated process for removing S,N and phenol from waste water containing S,N and phenol |
| 09/14/2004 | US6790360 Immersed membrane element and module |
| 09/14/2004 | US6790359 Vertical phase separation in anaerobic digestion |
| 09/14/2004 | US6790355 Apparatus and method for biological treatment of environmental contaminants and waste |
| 09/14/2004 | US6790347 Batch style wastewater treatment apparatus using biological filtering process and wastewater treatment method using the same |
| 09/10/2004 | WO2004076365A1 Apparatus and method for treating wastewater using contact media |
| 09/10/2004 | WO2004076356A2 Wastewater trickle tower biomedia with casing |
| 09/10/2004 | WO2003018199A3 Process for producing energy, feed material and fertilizer products from manure |
| 09/09/2004 | US20040173698 Pressure differential material transport and disposal system |
| 09/09/2004 | US20040173526 Aerobic digester for bodily waste material |
| 09/09/2004 | US20040173524 decomposition of organic matter and ammonium/ammonia are carried out in two or more sections divided by a precipitation chamber, and in that said plant further includes an aerated primary settling tank; immersed aerated bio filter plant |
| 09/09/2004 | US20040173523 Constructed wetlands system, treatment apparatus and method |
| 09/09/2004 | US20040173522 Prefilter for water treatment |
| 09/09/2004 | US20040172878 Anaerobic conversion of biomass for generation of methane, electricity and heat with hydrolysis and fermentation |
| 09/09/2004 | DE202004010727U1 Reinigungssystem zur Herstellung dauerhaft naturnaher Wässer Cleaning system for producing durable semi-natural waters |
| 09/09/2004 | DE10308660A1 Small-scale effluent water aeration tank has sub-surface water pump supplying above-surface mixer section for air and water |
| 09/08/2004 | EP1454980A2 Female sex hormone degrading bacteria and use thereof |
| 09/08/2004 | EP1454019A1 Method and plant for purification of water |
| 09/08/2004 | EP1453762A1 Layered sheet for gas supply in water treatment |
| 09/08/2004 | EP1453584A1 Process and apparatus for waste water treatment |
| 09/08/2004 | EP1373147B1 Method and device for the anaerobic purification of a slurry containing organic constituents |
| 09/08/2004 | EP1217886B1 Waste-water purification in cattle-breeding systems |
| 09/08/2004 | CN2639295Y Deflection sewage treatment device |
| 09/08/2004 | CN1527740A Treated material stirring apparatus |
| 09/08/2004 | CN1526661A Intermediate water reusing technology with combined reactor system for treating domestic sewage |
| 09/08/2004 | CN1526660A Functional suspended stuffing |
| 09/08/2004 | CN1165490C Process of treamtent for organic smell by using microbe filtering material therefor method matters |
| 09/08/2004 | CN1165365C Method for desulphurization of gases |
| 09/07/2004 | US6787045 Air stripping volatile compounds from water or other solutes by distributing gas through branched pipes; ponds, rivers, lakes, sewage or effluent treatment lagoons or beds; flow control irrespective of pressure drop |
| 09/07/2004 | US6787037 Flocculation, precipitation, filtration |
| 09/07/2004 | US6787036 Oxygen depleted wastewater fluid flow through vessel with set of perforated triangular vanes arranged to rotate about vertical axis; air is drawn, mixed and entrained in mist that coalesces to form bubbles; pumping, expulsion |
| 09/07/2004 | US6787035 Internal sludge circulation; controlling microorganism circulation |
| 09/07/2004 | US6787034 Compositions for removing hydrocarbons and halogenated hydrocarbons from contaminated environments |
| 09/07/2004 | US6786789 Apparatus and method for manufacturing organic EL display device |
| 09/05/2004 | CA2420920A1 Aerobic digester for bodily waste material |
| 09/02/2004 | WO2004074191A1 Method for treating water containing ammonia nitrogen |
| 09/02/2004 | WO2004074186A2 Ammonia nitrification over a carbonate alkalinity source |
| 09/02/2004 | US20040168989 Self contained, portable; removing chemical, biological and/or radiological contaminants |
| 09/02/2004 | US20040168980 Combination polymer treatment for flux enhancement in MBR |
| 09/02/2004 | US20040168977 Method for treating waste-activated sludge using elecroporation |
| 09/02/2004 | US20040168976 Efficient degradation; separation water from sludge; using actinomycesfrom Streptomyces |
| 09/02/2004 | US20040168975 Treament of water |
| 09/02/2004 | US20040168961 Wastewater trickle tower biomedia with casing |
| 09/02/2004 | DE102004003451A1 Abwasserkläranlage Wastewater treatment plant |
| 09/01/2004 | EP1452637A1 Functional plant fiber, a water-improving material, and a soil-protective material |
| 09/01/2004 | EP1452493A1 Aeration system for submerged membrane modules |
| 09/01/2004 | EP1451115A1 Sewage treatment plant |
| 09/01/2004 | EP1451113A1 Integrated hydroponic and wetland wastewater treatment systems and associated methods |
| 09/01/2004 | EP1451112A1 Integrated hydroponic and fixed-film wastewater treatment systems and associated methods |
| 09/01/2004 | EP1296896B1 Three-phase separation device for treating waste water and sludge |
| 09/01/2004 | EP1070030B1 Treatment of waste materials |
| 09/01/2004 | EP0461166B2 A method for controlling and/or monitoring biological processes |
| 09/01/2004 | CN2637487Y Large poie carrier wandering ball used for sewage treatment |
| 09/01/2004 | CN2637486Y Circulation flushing type microorganism environmental protection public toilet sewage treatment trough |
| 09/01/2004 | CN2637485Y High efficient biological deodorization device |
| 09/01/2004 | CN1524805A Method and apparatus for improving treatment efficiency of up-flow type anaerobic sludge bed |
| 09/01/2004 | CN1524804A Method and apparatus for removing viruses |
| 09/01/2004 | CN1164513C Method for treating acrylonitrile and acrylic waste water |
| 09/01/2004 | CN1164510C Secondary underground sewage-percolating purification technology |
| 09/01/2004 | CN1164509C Biofuel cell using wastewater and active sludge for wastewater treatment |