| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 10/01/2008 | CN101274802A Manufacture and application of bamboo raft type ecological floating bed |
| 10/01/2008 | CN101274801A Design and application method of glass fibre reinforced plastic wave-dissipating pot for ecology purification |
| 10/01/2008 | CN101274800A Film separated activated sludge apparatus |
| 10/01/2008 | CN101274799A Seaweed type hollow fiber membrane biological reaction apparatus |
| 10/01/2008 | CN101274798A Composite constructed wetland system and pretreatment method for drinking water source |
| 10/01/2008 | CN101274783A Method of treating at a high-temperature waste liquid from production plant for hydrocarbons or oxygen-containing compounds |
| 10/01/2008 | CN100422312C Chlorine resistant strain V430 and its screening method |
| 10/01/2008 | CN100422098C Artificial wet land plant distribution for purifying domestic sewage |
| 10/01/2008 | CN100422097C Environment protecting landscape wet land apparatus with combined submerged and floated modules |
| 10/01/2008 | CN100422096C Apparatus and method of treating city domestic refuse percolation liquid by two-stage UASB+A/O technique |
| 10/01/2008 | CN100422095C Fast percolating arched shed bed and its application in sewage treatment |
| 10/01/2008 | CN100422090C Biologic catalysis electode in use for processing nitryl aromatic compound and objects of halogenation |
| 10/01/2008 | CN100421553C Ecological energy-saving level dual-cycle water treatment system for industrialized fish culture |
| 09/30/2008 | US7429328 Mixing a portion of waste stream with activated bacteria sludge, controlled and create specialized population profiles, returning a fraction of biological population to the treatment vessel; solubilizing and precipitating phosphate to create phosphate particles; biodegration, pollution control |
| 09/30/2008 | US7429320 Wastewater treatment system |
| 09/30/2008 | CA2282326C Swirling type micro-bubble generating system |
| 09/25/2008 | WO2008115878A2 New bioremediation enhancing agent and method of use |
| 09/25/2008 | WO2008115444A2 High performance, energy efficient system and method for wastewater treatment with resource recovery and reduced residual solids generation |
| 09/25/2008 | US20080230472 Wastewater Purification System |
| 09/25/2008 | DE102007012409A1 Verfahren zur Erzeugung von Biomasse A process for the production of biomass |
| 09/25/2008 | DE10200616B4 Substrat zur Behandlung von Oberflächenwasser und dessen Verwendung Substrate for the treatment of surface water and its use |
| 09/24/2008 | EP1971555A1 Bioreactor and method for the biological purification of water |
| 09/24/2008 | CN201121157Y Sewage treatment system with sewage sludge decrement |
| 09/24/2008 | CN201121153Y Countryside sewage water ecological clarification system |
| 09/24/2008 | CN201121152Y Apparatus for reinforcing biological process with ultrasound wave in wastewater treatment |
| 09/24/2008 | CN201121151Y Ventilation reinforced drowned flow artificial wet land |
| 09/24/2008 | CN101270368A Method for preparing hydrogen with biology and with utilization of organic waste water step |
| 09/24/2008 | CN101270346A Butachlor degradation bacterium and application thereof |
| 09/24/2008 | CN101269904A Method for wastewater treatment of fermentation groove liquid and uses thereof |
| 09/24/2008 | CN101269903A Further advanced treatment technique and apparatus for sewage water of oil refining |
| 09/24/2008 | CN101269901A Comprehensive approach for process and cyclic utilization of sewage water |
| 09/24/2008 | CN101269900A Ecological system for water purification and recover |
| 09/24/2008 | CN101269898A Advanced treatment apparatus for printing and dyeing wastewater |
| 09/24/2008 | CN101269897A Method and system for processing sanitary sewage with anoxygenous-aerobic vertical current artificial wet land |
| 09/24/2008 | CN101269896A Standard quality process method for synthetic wastewater of industrial park |
| 09/24/2008 | CN101269895A Method for wastewater treatment and circulation recover zero discharge in lipoic acid preparation |
| 09/24/2008 | CN101269886A Water quality scavenging agent for high-density cultivation system for penaeus orientalis |
| 09/24/2008 | CN101269885A Processing method for biotransformation of cotton stalk high yield pulp waste liquor with bacterial N4 |
| 09/24/2008 | CN101269884A Microorganism renovation agent of water environment and preparation method thereof |
| 09/24/2008 | CN101269883A Method and apparatus for quantitatively regulating and controlling biomass of submerged plant |
| 09/24/2008 | CN101269882A Integrated oxidation ditch, construction and operation method |
| 09/24/2008 | CN101269881A Inner loop liquefaction biological reaction apparatus for wastewater treatment |
| 09/24/2008 | CN101269880A Zanjon type gas-lift stream-pull tridimensional circulation type integral co-construction oxidation ditch |
| 09/24/2008 | CN101269879A Zanjon type gas-lift stream-pull tridimensional circulation type inversion A<2>O integral co-construction oxidation ditch |
| 09/24/2008 | CN101269878A Return sludge separation technique for improving dephosphorization removing nitric efficiency factor of wastewater treatment |
| 09/24/2008 | CN101269877A Two-stage anaerobic digestion circulation blow-removing system |
| 09/24/2008 | CN101269876A Membrane component for membrane bioreactor |
| 09/24/2008 | CN101269875A Application of carbonatation steel scoria in wastewater treatment |
| 09/24/2008 | CN101269874A Layered geology mineral filter chamber sewage treatment system |
| 09/24/2008 | CN101269873A Method and apparatus for recycling membrane-bioreactor sewage water |
| 09/24/2008 | CN101269863A Apparatus and method for removing phosphor and organic matter in sewage water with electric flocculation membrane bioreactor |
| 09/24/2008 | CN100420642C Combined process of treating azo dye effluent with high salinity |
| 09/24/2008 | CN100420641C Floating combined and modularized artificial wetland device |
| 09/24/2008 | CN100420640C Lightweight highly effective filtering material for biology and its preparation method |
| 09/23/2008 | US7427357 Process and apparatus for anaerobic treatment of sulfur compound-containing wastewater |
| 09/23/2008 | US7427356 Fats, oil and grease interceptor |
| 09/23/2008 | US7427354 Degradation treatment process and system for organics in organically-polluted water |
| 09/18/2008 | WO2008111857A1 Treatment of organic material by digestion |
| 09/18/2008 | WO2008111643A1 Organic sewage treating plant |
| 09/18/2008 | WO2008111129A1 Organic wastewater treating apparatus |
| 09/18/2008 | WO2008109962A1 Microbial fuel cell |
| 09/18/2008 | US20080223784 ammonia oxidation, denitration, converting to nitrogen gas in a sequential bioreactor containing nitrifying bacteria; Waste water treatment; control the dissolved oxygen concentration in the reactor, avoiding the formation of nitrates |
| 09/18/2008 | US20080223783 aerobic membrane bioreactor and an anaerobic digester system; remove and recovery of phosphorus, ammonia; using organisms; using less oxygen, reduce potential generation of nitrous oxide, a greenhouse gas |
| 09/18/2008 | US20080223782 Pressurized Biological Waste Water Purification Process |
| 09/18/2008 | DE202008009515U1 Vorrichtung in Form eines Schwimmerumschaltventils Device in the form of a Schwimmerumschaltventils |
| 09/18/2008 | DE202008009011U1 Kläranlagenbelüftungseinrichtung Wastewater treatment plant aeration device |
| 09/18/2008 | DE102007037586B3 Rührvorrichtung für Belebtschlämme Stirring device for activated sludge |
| 09/17/2008 | EP1970353A1 Method and device for reduction of hydrogen sulfide |
| 09/17/2008 | EP1968900A1 Anaerobic purification of wastewater |
| 09/17/2008 | EP1968898A1 Bioremediation materials |
| 09/17/2008 | EP1968732A1 A mixer having multiple gas inlets |
| 09/17/2008 | EP1896371A4 An apparatus for treating small river water |
| 09/17/2008 | EP1868710B1 Agitating device and method for sewage treatment |
| 09/17/2008 | EP1430000B1 Biological water treatment assembly including a bacteria growth device and method associated thereto |
| 09/17/2008 | CN201116291Y Advanced wastewater treatment device |
| 09/17/2008 | CN201116287Y Sewage treating device for economy type circulating reduction biological bacterium system |
| 09/17/2008 | CN201116286Y High-efficiency oxidation ditch sewage treatment system |
| 09/17/2008 | CN201116285Y Environmental protection water closet liquid filtering device |
| 09/17/2008 | CN201115359Y Water hyacinth planting rack for treating riverway pollution |
| 09/17/2008 | CN101268019A Water treatment system |
| 09/17/2008 | CN101267880A Reactor and method for anoxia treatment of a substance in a fluid reaction medium |
| 09/17/2008 | CN101267045A A microbe fuel battery and its application |
| 09/17/2008 | CN101265458A Method for preparing strong film-forming bacterium and reinforcing sewage denitrogenation |
| 09/17/2008 | CN101265003A Method for treating high-concentration organic sewage difficult to degrade |
| 09/17/2008 | CN101265002A Method for treating beer industrial waste water |
| 09/17/2008 | CN101265000A Method for treating waste water in grape wine brewage |
| 09/17/2008 | CN101264999A Process and apparatus for treating sewage |
| 09/17/2008 | CN101264998A Low carbon source urban sewage strengthening denitrogenation dephosphorization technique and device |
| 09/17/2008 | CN101264985A Microorganism water purification slow release body and preparation method thereof |
| 09/17/2008 | CN101264984A Urban water net and water along greening ecological symbiosis method and system |
| 09/17/2008 | CN101264983A System and device for treating water pollution by biological cultivation |
| 09/17/2008 | CN101264982A Ecological restoring and maintaining method for landscape water body |
| 09/17/2008 | CN101264981A Stair device used for river water body ecological restoring |
| 09/17/2008 | CN101264980A Sea water culture environment multiple state position biological restoring method |
| 09/17/2008 | CN101264979A Method for realizing short distance deep denitrogenation under low temperature |
| 09/17/2008 | CN101264978A Method for fast realizing short distance deep denitrogenation by SBR process |
| 09/17/2008 | CN101264977A Device and method for conserving anaerobic particle sludge in beer industrial waste water treatment |
| 09/17/2008 | CN101264976A Carbon source supplement anoxic biology filter deep denitrogenation dephosphorization treatment system |
| 09/17/2008 | CN101264975A Column-type film components |
| 09/17/2008 | CN101264974A Device for increasing active sludge oxygen-consuming rate by using electrostatic field |