| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 12/15/2005 | DE202005013096U1 Biomass filter for part-purified water leaving industrial oil separator, is divided by sieve into biomass filtration section and outlet section |
| 12/15/2005 | DE102004025174A1 Equipment for de-icing and clearing top of tank wall in waste water treatment plant, includes air blower and radiant heater mounted on tank scraper carriage |
| 12/15/2005 | CA2567100A1 Ethanol production from biological wastes |
| 12/14/2005 | EP1604956A1 Thermic sludge sanitation facility |
| 12/14/2005 | EP1603838A2 Two phase anaerobic organic matter treatment and system |
| 12/14/2005 | EP1603642A2 Composite material for a permeable reactive barrier |
| 12/14/2005 | EP1173389B1 Method of treating waste water |
| 12/14/2005 | CN1706758A Alternate aerobic-anaerobic completely mixing active sludge process |
| 12/14/2005 | CN1706757A Water quality modifier |
| 12/14/2005 | CN1706756A Ecological water purifying material for aquiculture |
| 12/14/2005 | CN1706755A Deep sewage treatment method and apparatus |
| 12/14/2005 | CN1706754A Two-step biological hydrogen preparing process with raised hydrogen generating efficiency of organic waste water |
| 12/14/2005 | CN1231420C Batch sewage treatment device using biofiltering method and its sewage treatment method |
| 12/13/2005 | US6974536 Wastewater treatment apparatus including dosing and recirculation chambers within a single tank |
| 12/08/2005 | WO2005115931A1 Plant-based sewage treatment system for purifying waster water |
| 12/08/2005 | WO2005115930A1 Bioelectrolytical methanogenic/methanotrophic coupling for bioremediation of ground water |
| 12/08/2005 | WO2005115929A1 Device for fixing a perforated aeration membrane |
| 12/08/2005 | WO2005115594A1 Immersed-membrane water treating filtering device comprising means preventing filterable medium backflowing to filter cleaning gas injecting means |
| 12/08/2005 | WO2005081641A3 Water purification method and purification system |
| 12/08/2005 | WO2004108610A8 Combination of compressor and permanent magnet motor for sewage aeration |
| 12/08/2005 | US20050269263 oxidation and reduction of nitrogen impurities using both nitrifying and denitrifying bacteria; contact with both hydrogen and oxygen |
| 12/08/2005 | US20050269262 Biological film support module for wastewater treatment system |
| 12/08/2005 | US20050269261 Apparatus and methods for forming microcultures within porous media |
| 12/08/2005 | US20050269260 Combined tidal vertical flow and horizontal flow wastewater treatment system and method |
| 12/08/2005 | US20050269259 Method and system for removal of contaminants from aqueous solution |
| 12/08/2005 | US20050269253 Low aspect ratio wastewater system |
| 12/08/2005 | US20050269252 Water treatment apparatus |
| 12/08/2005 | DE102004024430A1 Sequential batch reactor water effluent treatment process is regulated by reference to an upstream parameter following e.g. rainfall |
| 12/08/2005 | CA2562521A1 Immersed-membrane water treating filtering device comprising means preventing filterable medium backflowing to filter cleaning gas injecting means |
| 12/07/2005 | CN2744675Y Spiral cone |
| 12/07/2005 | CN2744674Y Real-time automatic speed-controllable brush type aerator |
| 12/07/2005 | CN2744673Y Gas-lift type hollow fiber membrane bioactive assembly |
| 12/07/2005 | CN1705618A Method for the treatment of waste water with sludge granules |
| 12/07/2005 | CN1704364A Preparation of nitrite-reducing bacterium and method for rehabilitation of aquaculture environment |
| 12/07/2005 | CN1704363A Preparation of acid-reducing bacterium and method for rehabilitation of aquaculture environment |
| 12/07/2005 | CN1704362A Preparation of probiotics bacterium and method for rehabilitation of aquaculture environment |
| 12/07/2005 | CN1704361A Preparation of antidotal bacterium and method for rehabilitation of aquaculture environment |
| 12/07/2005 | CN1704360A Preparation of alkaline-reducing bacterium and method for rehabilitation of aquaculture environment |
| 12/07/2005 | CN1704359A Method for producing liquid-phase solid film of film filtering tank for sewage treatment |
| 12/07/2005 | CN1704358A Integrated film biological reactor |
| 12/07/2005 | CN1704357A Intelligent environment-protection ecological toilet |
| 12/07/2005 | CN1704356A Sewage counteraction and sterilization system |
| 12/07/2005 | CN1704351A Integrated water treatment installation including a sedimentation basin built-in type reactor |
| 12/07/2005 | CN1230389C Method and device for treating high concentration waste water |
| 12/07/2005 | CN1230388C Method for effluent purification |
| 12/07/2005 | CN1230387C Improved biofilter |
| 12/06/2005 | CA2248103C Enzymatic detergent composition and method for degrading and removing bacterial cellulose |
| 12/01/2005 | WO2005113456A2 Methods and systems for total nitrogen removal |
| 12/01/2005 | WO2005113455A1 Waste water treatment |
| 12/01/2005 | WO2005113454A1 Variously configurable rotating biological contactor and prefabricated components therefor |
| 12/01/2005 | WO2005034613A3 Apparatus and method for controlling biomass growth in suspended carrier bioreactor |
| 12/01/2005 | US20050266540 Ethanol production from biological wastes |
| 12/01/2005 | US20050263914 Diffused gas aeration apparatus |
| 12/01/2005 | US20050263454 Halogenated solvent remediation |
| 12/01/2005 | DE10238957B4 Verfahren zur Verringerung der Uran(VI)-Konzentration in fließenden Wässern A method of reducing uranium (VI) concentration in flowing waters |
| 12/01/2005 | DE10050030B4 Verfahren und Vorrichtung zum Eintragen von Gasen in flüssige Medien Method and apparatus for introducing gases into liquid media |
| 12/01/2005 | CA2566852A1 Variously configurable rotating biological contactor and prefabricated components therefor |
| 12/01/2005 | CA2566454A1 Methods and systems for total nitrogen removal |
| 11/30/2005 | EP1600220A1 Additive for use in restoration of contaminated soil, ground water or sediment soil |
| 11/30/2005 | EP1599420A2 Sewage treatment system |
| 11/30/2005 | EP1519649B1 Water distributor device for aquariums, ponds and the like provided with a possible biological filter |
| 11/30/2005 | CN2743339Y Upflow type biocarrier nitration denitrogen treatment device |
| 11/30/2005 | CN2743338Y Water distribution deflection disk |
| 11/30/2005 | CN1702046A Technological process for treating PTA petrochemical waste water by using specific strain |
| 11/30/2005 | CN1702045A Preparation of bacterium for cleaning pool bottom and method for rehabilitation of aquaculture environment |
| 11/30/2005 | CN1229492C Water-purifying bacillus subtilis, bacterial agent and solid fermenting process and application |
| 11/29/2005 | US6969562 Fuel cell power generation method and system |
| 11/29/2005 | US6969464 Dewatering a leach field |
| 11/29/2005 | US6969052 Air aspirator-mixer |
| 11/29/2005 | CA2510276A1 Circulating sewage/waste water purification device |
| 11/29/2005 | CA2392034C Process and system for treatment of waste streams containing water-soluble polymers |
| 11/24/2005 | WO2005110932A1 Packaged wastewater treatment unit and flow-through media |
| 11/24/2005 | US20050258106 Advanced automated control and feedback process for wastewater treatment |
| 11/24/2005 | US20050258095 Enzyme-assisted clarification and dewatering of wastewater |
| 11/24/2005 | US20050258094 Mixing waste water from an activated sludge or clean water with reactive gas of oxygen and/or oxygen and ozone to form an aqueous medium, atomizing under pressure forming a reactive gas-dissolved/dispersed liquid, introducing it into the waste water being treated |
| 11/24/2005 | US20050258084 Aerobic wastewater treatment system |
| 11/24/2005 | US20050258083 Variously configurable rotating biological contactor and prefabricated components therefor |
| 11/24/2005 | DE202005010361U1 Klärtank Septic tank |
| 11/23/2005 | EP1598712A1 Method and device for controlling the biological process in waste-water treatment plants |
| 11/23/2005 | EP1598320A1 Biological filter for treating effluents |
| 11/23/2005 | EP1598122A1 Method of treating organic waste, agent for treating organic waste and microorganisms to be used therein |
| 11/23/2005 | EP1597203A1 Method for removing phosphate from water |
| 11/23/2005 | CN2741975Y 射流布水器 Jet water distributor |
| 11/23/2005 | CN2741974Y Anaerobic multiple stage internal circulation reactor |
| 11/23/2005 | CN2741973Y High efficiency combined water distributor |
| 11/23/2005 | CN2741972Y Integrated aeration tower |
| 11/23/2005 | CN2741971Y Contaminated water purifier |
| 11/23/2005 | CN2741970Y Improved biological fluidized filler |
| 11/23/2005 | CN2741969Y Ouasi aerobic biological reaction bed |
| 11/23/2005 | CN1699220A Method and apparatus for immobilizing cells to treat wastewater |
| 11/23/2005 | CN1699219A Sequencing batch type combined biofilm integrated apparatus for treating high concentration organic wastewater |
| 11/23/2005 | CN1699218A High-load self-circulating in vitro anaerobic granular sludge suspended bed reactor |
| 11/23/2005 | CN1699217A Culture method of aerobic nitrosated granular sludge |
| 11/23/2005 | CN1699216A Middle water reuse process with compound bacteria and membrane bioreactor and apparatus therefor |
| 11/23/2005 | CN1699215A Application of filtration-adsorption material made of sludge in reuse water treatment |
| 11/23/2005 | CN1699214A Compound filling for sewage treatment |
| 11/23/2005 | CN1699213A In-situ repairing method for landscape water body |
| 11/23/2005 | CN1228257C Organ boron waste stream treatment using hydrogen peroxide |
| 11/22/2005 | US6967099 Plant-fiber containing composition for anaerobic bioremediation |
| 11/22/2005 | US6966983 Continuous multistage thermophilic aerobic sludge digestion system |