| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 04/20/2011 | CN101580323B Treatment method of cellulose ethanol production wastewater |
| 04/20/2011 | CN101575159B Method of intensified denitrification and dephosphorization of urban sewage |
| 04/20/2011 | CN101559382B Multiple-effect biological solid catalyst used for reclaimed water treatment and the preparation method thereof |
| 04/20/2011 | CN101555084B Treatment method for rural sewage based on three-grid septic tank |
| 04/20/2011 | CN101555047B Dynamic membrane support body and component for realizing water supply/sewage water treatment |
| 04/20/2011 | CN101554545B Micro-net component with continuous mobile line-shaped backwash and distributed with shock absorption and application method thereof |
| 04/20/2011 | CN101549905B Organic waste water anaerobic treatment method |
| 04/20/2011 | CN101549904B Refuse leachate ammonia nitrogen handling arrangement |
| 04/20/2011 | CN101503268B Zero discharge processing EBM method for dyeing waste water |
| 04/20/2011 | CN101492206B Method for in situ restoring groundwater azotate pollution with corn stalk |
| 04/20/2011 | CN101484394B A method for removing the contamination of c, n utilizing heterotrophic ammonia-oxidizing bacteria |
| 04/20/2011 | CN101428936B Treatment process for suspended matter-containing wastewater |
| 04/20/2011 | CN101391842B Control and protection device of aeration aerating machine with wind and solar mutual-complementing power supply |
| 04/20/2011 | CN101312915B Bioreactor and method for the biological purification of water |
| 04/20/2011 | CN101306906B Method for treating micro-polluted water |
| 04/20/2011 | CN101254976B Preparation method of magnetic bio-carrier for treating sewage water |
| 04/19/2011 | US7927848 Method and apparatus for production of biogas from an organic material |
| 04/19/2011 | US7927493 Low phosphorus water treatment methods |
| 04/19/2011 | US7927491 Integrated bio-digestion facility |
| 04/19/2011 | US7927484 Passive underground drainfield for septic tank nutrient removal using functionalized green filtration media |
| 04/19/2011 | CA2410216C Ammonia-oxidizing bacteria |
| 04/19/2011 | CA2372337C In-pipe wastewater treatment system |
| 04/19/2011 | CA2309842C Polylactate release compounds and methods of using same |
| 04/14/2011 | WO2011043232A1 Additive used in a membrane-separation activated sludge process |
| 04/14/2011 | WO2011043144A1 Method and system for treating plant wastewater |
| 04/14/2011 | WO2011042476A1 Device for cleaning wastewater comprising contaminants and that can be or is installed in a watercraft |
| 04/14/2011 | WO2011022644A3 Fermentation and chemical treatment of pulp and paper mill sludge |
| 04/14/2011 | US20110084416 Mixing systems and methods of mixing |
| 04/14/2011 | US20110084022 Process for treating nitrogenous wastewater with simultaneous autotrophic denitrification, hetertrophic denitrification and COD removal |
| 04/14/2011 | US20110084021 Method of ecological restoration of water bodies containing excess nutrient |
| 04/14/2011 | US20110084020 Novel systems and methods for converting gaseous byproducts of wastewater treatment into energy |
| 04/14/2011 | DE202011002463U1 Vorrichtung zum Ausbau von Belüftern für Kläranlagen ohne Ausbau des Festbettes Apparatus for expanding aerators for wastewater treatment without removal of the fixed bed |
| 04/14/2011 | CA2774695A1 Method of treating a plant wastewater and treatment system therefor |
| 04/13/2011 | EP2308583A1 Scrubbing ammonia from air |
| 04/13/2011 | EP2307624A2 Automatic and rapid opening flush system for full-tank discharge |
| 04/13/2011 | EP2307323A1 Plant and process for the purification of wastewaters |
| 04/13/2011 | CN201793462U Trimethylolpropane industrial waste water treatment system |
| 04/13/2011 | CN201793460U Small-sized sewage treatment station |
| 04/13/2011 | CN201793459U Oxidation ditch used for sewage treatment |
| 04/13/2011 | CN201793431U Biological on-line automatic feeding system |
| 04/13/2011 | CN201793430U Circular combined floating bed made of foam concrete and used for cultivating plants on water surface |
| 04/13/2011 | CN201793429U Polyphenyl particle-added concrete combined floating bed for cultivating plants on water surface |
| 04/13/2011 | CN201793428U Ecological medium type constructed wetland |
| 04/13/2011 | CN201793427U Assembly for biologic purification of water body |
| 04/13/2011 | CN201793426U Elastic three-dimensional filler |
| 04/13/2011 | CN201793425U Programmable-controlled water distributor |
| 04/13/2011 | CN201793424U Printing and dyeing wastewater anaerobic treatment bacterium cultivation and inoculation device |
| 04/13/2011 | CN201793423U Hydrolysis acidification tank |
| 04/13/2011 | CN201793422U Oxygen-increasing aeration device |
| 04/13/2011 | CN201793421U Water fall aeration-type biofilter |
| 04/13/2011 | CN201793420U Self-flowing biological rotating disk |
| 04/13/2011 | CN201791407U Quick mud-water separation device |
| 04/13/2011 | CN102015553A Method for treating and/or pretreating liquid manure or biogas plant reject for the elimination of harmful substances, particularly nitrogen, phosphorus, and odor molecules |
| 04/13/2011 | CN102015551A Biofilm reactor containing spiral structure and water treatment device using the same |
| 04/13/2011 | CN102015546A Fresh water production method, fresh water production apparatus, method for desalinating sea water into fresh water, and apparatus for desalinating sea water into fresh water |
| 04/13/2011 | CN102015084A Device for inserting gas bubbles into a liquid |
| 04/13/2011 | CN102015077A Method for cleaning filtration membrane modules and membrane bioreactor system for treating untreated water or wastewater or activated sludge |
| 04/13/2011 | CN102011379A Pollution control method of farmland drainage in plain tidal river network area |
| 04/13/2011 | CN102010112A Method for treating livestock wastes |
| 04/13/2011 | CN102010106A Integrated high-efficiency oxidation ditch and sewage treatment process thereof |
| 04/13/2011 | CN102010097A Method for recycling carbon fiber wastewater |
| 04/13/2011 | CN102010096A Three-dimensional graded aerated biological filter |
| 04/13/2011 | CN102010094A Method for treating high-calcium and high-salt industrial wastewater |
| 04/13/2011 | CN102010072A Method for inhibiting growth of algae through allelopathy of aquatic plants |
| 04/13/2011 | CN102010071A Combined high-efficiency river water quality purification process |
| 04/13/2011 | CN102010070A Spiral floated water treatment packing (SFWP), preparation method of SFWP and application of SFWP in water treatment |
| 04/13/2011 | CN102010069A Method for treating methyl orange dye waste water |
| 04/13/2011 | CN102010068A Double-layered composite artificial floating island |
| 04/13/2011 | CN102010067A Unpowered reoxygenation water inflow system of subsurface flow artificial wetland in northern cold region |
| 04/13/2011 | CN102010066A Method for purifying sewage in vertical-flow artificial wetland |
| 04/13/2011 | CN102010065A Comprehensive treatment method of landscape water eutrophication and algae overgrowth |
| 04/13/2011 | CN102010064A Sodium removing technology for secondary processing sewage |
| 04/13/2011 | CN102010063A Water quality improver or feed and fertilizer synergist and production method thereof |
| 04/13/2011 | CN102010062A MBR wastewater treating system with double circular grooves |
| 04/13/2011 | CN102010061A Nitrification and denitrification sewage treatment device and system |
| 04/13/2011 | CN102010060A Method for pre-treating polluted river water by adopting biological semi-coke aerated filter |
| 04/13/2011 | CN102010059A Device and method for membrane separation sewage treatment and recycling as well as microporous aeration |
| 04/13/2011 | CN102010058A Aerobic granular sludge culture method suitable to low-concentration domestic sewage |
| 04/13/2011 | CN102010057A Multi-layer flat membrane of immersed-type membrane bioreactor |
| 04/13/2011 | CN102010056A Submersible biological filtration and purification device |
| 04/13/2011 | CN102008904A Method for preparing membrane material for multifunctional catalytic composite membrane bioreactor |
| 04/13/2011 | CN101708926B Method for biologically treating wastewater by simultaneously desulfurizing, denitrifying and decoloring |
| 04/13/2011 | CN101708897B Water treatment technology of inclined plane undercurrent artificial wetland |
| 04/13/2011 | CN101704576B Method for realizing synchronous denitrification in membrane bioreactor |
| 04/13/2011 | CN101691269B Method for pre-treating difficultly-degradable wastewater by catalyzed iron inner electrolysis fluidized bed |
| 04/13/2011 | CN101648767B Method and system for processing hot-rolling and emulsifying wastewater for aluminum plate |
| 04/13/2011 | CN101648764B Method for treating produced wastewater of gar carrageenan and utilizing method in ecological mariculture |
| 04/13/2011 | CN101585600B Moderate temperature UASB reactor water distribution device in diameter of more than 15 meter |
| 04/13/2011 | CN101538106B Energy-free sewage treatment plant |
| 04/13/2011 | CN101531978B Method for mixed culture of microalgae through regulation and control of lactobacillus and for synergistic purification of culture discharge water |
| 04/13/2011 | CN101519639B Paenibacillus polymyxa for preventing and treating plant fungal diseases and production method thereof |
| 04/13/2011 | CN101514330B Achromobacter capable of degrading aniline and application thereof |
| 04/13/2011 | CN101514062B Method of processing high concentration organic wastewater |
| 04/13/2011 | CN101389572B Method of treating wastewater |
| 04/13/2011 | CN101381156B Sewage disposal system combining membrane bioreactor and phosphorus recovery and processing method |
| 04/13/2011 | CN101343090B Lanthanide series water treatment agent and method of preparing the same |
| 04/13/2011 | CN101269874B Layered geology mineral filter chamber sewage treatment system |
| 04/13/2011 | CN101153271B Bacterium agent for renovation of organic pollution aquifer, producing and using method of the same |
| 04/13/2011 | CN101044099B Method for treating waste water from plant for producing hydrocarbon or oxygen-containing compound |
| 04/12/2011 | US7922910 Cyclic aeration system for submerged membrane modules |