| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 04/02/2008 | CN100377968C Process and assembly for the treatment of waste water on ships |
| 04/02/2008 | CN100377640C Method of improving ecological environment of enclosed seawater pond |
| 04/01/2008 | CA2387777C Potable water treatment plant and method of maintaining same |
| 03/27/2008 | WO2008035860A1 The high efficiency aerator apparatus |
| 03/27/2008 | WO2008035710A1 Method of wastewater disposal |
| 03/27/2008 | WO2008035594A1 Apparatus for biologically treating organic waste liquid |
| 03/27/2008 | WO2008034337A1 Excrement and urine treatment apparatus for an ecological flush-free toilet |
| 03/27/2008 | US20080073275 Bio degradation of oxyanions such as perchlorate on ion exchange resins |
| 03/27/2008 | US20080073270 Method and apparatus for treatment of wastewater |
| 03/27/2008 | US20080073269 Method and Apparatus for Treatment of Wastewater |
| 03/27/2008 | US20080073268 Biologically nitrifying the water to convert ammonia to nitrates followed by anaerobic denitrification to from nitrogen;forming magnetic floc in the water, the floc comprising magnetic bed media and the suspended solids which are removed magnetically; efficient continuous processing; durability |
| 03/27/2008 | US20080073267 Method and System for Retrofitting An Existing Water Treatment System |
| 03/27/2008 | US20080073266 Continuous multistage thermophilic aerobic and aerobic-anaerobic sludge treatment process |
| 03/27/2008 | US20080073265 Feeding a liquid also containing magnesium compounds and BOD to one reactor containing a BOD-oxidizing biomass;aerobically oxidizing while controlling the concentration, basicity and stripping of carbon dioxide to form struvite (Mg NH4PO4); efficiency; <5% nitrification |
| 03/27/2008 | US20080073259 Dosing pipe diffuser |
| 03/27/2008 | US20080073256 Water treatment apparatus |
| 03/27/2008 | DE202006020262U1 Fäkalienabwasserbehandlungsanlage durch Biofiltration (BFBA) Sewage treatment system biofiltration (BFBA) |
| 03/27/2008 | CA2663986A1 Wastewater treatment method |
| 03/26/2008 | EP1903010A1 Method for wastewater treatment in continuously charged activated sludge plants comprising upstream denitrification |
| 03/26/2008 | EP1901998A1 Process reactor with layered packed bed |
| 03/26/2008 | CN201040737Y Domestic sewage treatment equipment |
| 03/26/2008 | CN201040726Y Drift type multifunctional water purifying apparatus |
| 03/26/2008 | CN101148307A Anaerobic-aerobic-film processing technique for urban domestic refuse percolate |
| 03/26/2008 | CN101148306A Method for treating and utilizing human fecaluria |
| 03/26/2008 | CN101148305A Method for treating waste water of 1,4-butanediol production |
| 03/26/2008 | CN101148304A Highly effective double-element nitration reactor |
| 03/26/2008 | CN101148303A Oil field re-injection water microbiological treatment |
| 03/26/2008 | CN101148302A Method for treating waste water of livestock and fowl cultivation |
| 03/26/2008 | CN101148294A Method for increasing sulfate reduction bacterium activity |
| 03/26/2008 | CN101148293A Microorganism advanced treatment for oil refining waste water |
| 03/26/2008 | CN101148292A Method for treating eutrophication water body by waterborne cultivated plant |
| 03/26/2008 | CN101148291A Anaerobic small-spacing multilayer three-phase mud-water-gas separating device |
| 03/26/2008 | CN101148290A Modified micro-pore film biological reaction sewage treatment device and treatment method thereof |
| 03/26/2008 | CN101148289A Suspending porous biological carrier and preparation |
| 03/26/2008 | CN101148288A Method for river sewage treatment and special purifying system for the same |
| 03/26/2008 | CN100376496C Integrated process for treating sewage by suspended bio-carrier |
| 03/26/2008 | CN100376494C Screening method for heavy metal enriched / accumulated plant |
| 03/26/2008 | CN100376493C Sequencing batch type combined biofilm integrated apparatus for treating high concentration organic wastewater |
| 03/26/2008 | CN100376492C Waste water treatment apparatus for generating firedamp and self-circulating anaerobic reactor thereby |
| 03/26/2008 | CN100376491C Small-scale treatment unit for waste water |
| 03/26/2008 | CN100376490C Integrated film biological reactor |
| 03/26/2008 | CN100376486C Use of solar energy in water treatment and solar energy collecting and conducting device |
| 03/25/2008 | US7347942 Cyclic aeration system for submerged membrane modules |
| 03/25/2008 | US7347941 treating recirculating water passing through air-conditioning systems, heat-exchangers, cooling towers; boron conditioned enzyme retains activity 40% of activity of unconditioned enzyme for two hours after contacting biofilm with biocide or corrosion inhibitor which would normally deactivate the enzyme |
| 03/25/2008 | US7347940 retaining wastewater in a first vessel so as to maintain a persistent anoxic/anaerobic state and to permit suspended solids to settle to adjacent a bottom thereof, leaving a clearer water zone above the suspended solids |
| 03/25/2008 | US7347647 Composite material for a permeable reactive barrier |
| 03/25/2008 | CA2469382C Processing waste using boiling water temperature and vacuum |
| 03/25/2008 | CA2305490C Method for evaluating and controlling the biomass contained in waste water treatment biological tanks |
| 03/25/2008 | CA2292382C Biological waste treatment process and apparatus |
| 03/20/2008 | WO2008033703A2 A method of improving membrane bioreactor performance |
| 03/20/2008 | WO2008015350A3 Method and device for purifiying waste water |
| 03/20/2008 | CA2663285A1 A method of improving membrane bioreactor performance |
| 03/19/2008 | EP1900691A1 Apparatus for water treatment and method of treating water |
| 03/19/2008 | EP1899274A1 Use of sulphate-reducing thermophilic archaea for carrying out a hydrocarbon degradation process |
| 03/19/2008 | EP1899273A1 Water treatment process |
| 03/19/2008 | EP1899022A1 Method of detoxication of yperite by using haloalkane dehalogenases |
| 03/19/2008 | CN201037128Y Adjustable undercurrent artificial wet land sewage treatment system |
| 03/19/2008 | CN201037127Y Filling material for sewage treatment engineering |
| 03/19/2008 | CN201037126Y Reverse umbrella aeration impeller |
| 03/19/2008 | CN101145620A Animalcule fuel battery and its method for processing beer waste water |
| 03/19/2008 | CN101144075A Method for degrading pyrethrins pesticide by magnetic polyurethane foam plastic immobilized cell |
| 03/19/2008 | CN101143756A In situ collection and ecological processing method and device for residential area domestic garbage station percolate |
| 03/19/2008 | CN101143751A Method for in situ repairing eutrophication surface water |
| 03/19/2008 | CN101143750A Control device and method for four-section water-feeding A/O technique water-feeding flow rate distribution process |
| 03/19/2008 | CN101143749A Method and system for treating domestic sewage by artificial sloping fields landscape |
| 03/19/2008 | CN101143748A Waterborne artificial wetland and water purification method |
| 03/19/2008 | CN100375726C Mambrane method of recovery and utilization of refining oil and chemical polluted water and its equipment |
| 03/19/2008 | CN100375725C Method for carrying out biologic decolor for electric mother liquor of sodium glutamate |
| 03/19/2008 | CN100375724C Baffle-board reactor and method for treating sewage by using it |
| 03/19/2008 | CN100375723C Treatment method of high concentration swill |
| 03/19/2008 | CN100375648C On-line chemical cleaning method for membrane bioreactor |
| 03/19/2008 | CN100375637C Biological deodorization and purification agent, and its use |
| 03/18/2008 | US7344644 burying an underdrain in situ under a filter media bed within a natural body of water; upper surface of the particulate material bed remains substantially undisturbed by wave motion or tidal action |
| 03/18/2008 | US7344643 Process to enhance phosphorus removal for activated sludge wastewater treatment systems |
| 03/18/2008 | CA2272689C Method for improving wastewater treatment |
| 03/13/2008 | WO2008030870A2 Wastewater treatment system |
| 03/13/2008 | WO2007140441A3 Methods and systems for generating hydrogen from a biomass |
| 03/13/2008 | US20080060996 Adding a cationic polymer to activated sludge; improving flux through a membrane in the MBR; reducing fouling |
| 03/12/2008 | EP1897857A1 Water treatment system |
| 03/12/2008 | EP1897856A1 Apparatus for treating fat-containing wastewater and method of treating fat-containing wastewater |
| 03/12/2008 | EP1897814A1 Container |
| 03/12/2008 | EP1896371A1 An apparatus for treating small river water |
| 03/12/2008 | CN201033758Y Highly effective module combined sewage treatment equipment |
| 03/12/2008 | CN201033757Y Sewage water treatment system for fruit juice waste water |
| 03/12/2008 | CN201033753Y Novel methane purification pool |
| 03/12/2008 | CN201033752Y Highly-effective energy-saving aeration system |
| 03/12/2008 | CN201033751Y Novel air outlet weir |
| 03/12/2008 | CN201033750Y Perforating aeration pipe with elastomer diaphragm |
| 03/12/2008 | CN201033749Y Rapid-separating biochemistry ball for sewage water purifying installation |
| 03/12/2008 | CN201033748Y Dissolved oxygen controlling means for Orbal oxidation ditch biological denitrification process |
| 03/12/2008 | CN201033283Y Sewage processing device with membrane filtration component |
| 03/12/2008 | CN101139559A Novel bacterial strain for highly effective degradation of chrysanthemum ester and organophosphorus pesticide and uses thereof |
| 03/12/2008 | CN101139555A Applications of one strain saccharomyces cerevisiae and its compound inocula |
| 03/12/2008 | CN101139156A Textile printing and dyeing wastewater advanced treatment method |
| 03/12/2008 | CN101139155A Non-excess activated sludge discharged printing and dyeing wastewater processing equipment and operation method thereof |
| 03/12/2008 | CN101139154A Organic waste water processing method |
| 03/12/2008 | CN101139153A Combined type cultivation wastewater purification method and device |
| 03/12/2008 | CN101139146A Technique for fathering papermaking black liquor by using boiler flue vent gas |
| 03/12/2008 | CN101139140A Aerugo microcapsule algae degradation method using animalcule |
| 03/12/2008 | CN101139139A Economizing type sewage processing system for circulating biological bacterium system reduction |