| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 01/04/2005 | US6837998 Method and conditioning agent for treating waste water and air pollutants |
| 01/04/2005 | US6837991 Algae scrubber filtration system |
| 01/04/2005 | CA2372331C System and method for removing pollutants from water |
| 12/30/2004 | US20040265988 Microorganism for use in bioremediation of soils: purification of gasoline-contaminated soils and groundwater |
| 12/30/2004 | US20040262220 Method and apparatus for anaerobic digestion of biomasses and generation of biogas |
| 12/30/2004 | US20040262219 Periphyton filtration pre-and post-treatment system and method |
| 12/30/2004 | DE202004010707U1 Assembly for simultaneous anaerobic treatment of sewage and organic residue, using a two-stage reactor, has a zone for hydrolyzing and acid removal and a zone to generate methane |
| 12/30/2004 | DE19717758B4 Verfahren und Vorrichtung für die biologische Reinigung von Wasser oder Abwasser zur Elimination von Kohlenstoff, Stickstoff- und Phosphorverbindungen Method and apparatus for the biological purification of water or waste water for the elimination of carbon, nitrogen and phosphorus compounds |
| 12/30/2004 | DE10316380A1 Process to co-treat effluent water and water-based filtrate by progressive change in the ratio of the two in a sequential batch reduction reactor |
| 12/29/2004 | WO2004113589A1 Device in the form of a washing machine comprising a bioreactor for cleaning machine parts that are soiled with oil and fat |
| 12/29/2004 | WO2004113239A1 Method for removing a pollutant from an aqueous medium using a membrane |
| 12/29/2004 | WO2004113237A1 Treatment of sewage sludge |
| 12/29/2004 | WO2004113231A2 Systems and methods for treating waste water |
| 12/29/2004 | WO2004112843A2 Odor control compositions and methods |
| 12/29/2004 | EP1491661A1 Device for purification of machine parts contaminated by oil and grease of the washing machine type with a bioreactor |
| 12/29/2004 | EP1491507A1 Process of and digester for anaerobic digestion of sludge |
| 12/29/2004 | EP1490305A2 Plant and method for the disposal of zootechnical sewage |
| 12/29/2004 | EP1490304A1 Circular installation for the biological treatment of wastewater. |
| 12/29/2004 | CN2666898Y Aeration conduit skeleton |
| 12/29/2004 | CN2666897Y Integrated sewage processing tower |
| 12/29/2004 | CN2666896Y Floating integral aeration air-distributing apparatus |
| 12/29/2004 | CN2666895Y Rotary disc for water treatment |
| 12/29/2004 | CN1557944A Method for preparing composite live bacillus biological water-purifying agent |
| 12/29/2004 | CN1557744A Method and apparatus for purifying and utilizing sewage for sustainable development type city |
| 12/29/2004 | CN1557743A Digesting treatment method for city domestic refuse and sludge of sewage plant by composite anaerobe |
| 12/29/2004 | CN1557742A Free flow suspension filling for sewage treatment |
| 12/29/2004 | CN1557741A Multipurpose bio-trickling filter deordorization device |
| 12/29/2004 | CN1557740A Disperse type sewage treatment and recovery utilization method of strengthening city sewage pipeline purifying function |
| 12/29/2004 | CN1182079C Method for making organic fertilizer by utilizing housefly larva to ecologically treat pig dung |
| 12/29/2004 | CN1182055C Zeolite-bio combined adsorption regenerative sewage treating process |
| 12/29/2004 | CN1182052C Process and apparatus for wastewater by batched membrane-bioreactor |
| 12/29/2004 | CN1182051C Reconstructing method for sewer anaerobic treatment of sewage, organic refuse and of recovery marsh gas |
| 12/29/2004 | CN1182050C Anaerobic treatment device for organic waste water |
| 12/29/2004 | CN1182049C Double-layer filter material biological aeration filter pond |
| 12/29/2004 | CN1182048C Intensified water-distribution type underground infiltration sewage treatment method |
| 12/29/2004 | CN1181734C Organic ecological regulator for artificial shrimp pond water body and preparing method thereof |
| 12/29/2004 | CA2530648A1 Device in the form of a washing machine comprising a bioreactor for cleaning machine parts that are soiled with oil and fat |
| 12/29/2004 | CA2529105A1 Odor control compositions and methods |
| 12/28/2004 | US6835312 Stimulating growth of alkane-utilizing bacteria to allow the bacteria to degrade at least a portion of the septic system wastewater; e.g., methane, ethane, propane and butane, to effectively biodegrade pollutants; aerobic or anaerobic |
| 12/23/2004 | US20040256958 Microbiological energy source for driving a consumer |
| 12/23/2004 | US20040256321 Multiple-passageway device that removes fi ltrate by incorporating a filtrate conduit(s) within the monolith structure; utilizes most of its passageways by providing a low pressure drop flow path for filtrate between even the innermost passageways and an external filtrate collection zone |
| 12/23/2004 | US20040256317 Method for treating for-treatment water containing organic matter and nitrogen compound |
| 12/23/2004 | US20040256316 Wastewater treatment apparatus and system |
| 12/23/2004 | US20040256315 Process and apparatus for waste water treatment |
| 12/23/2004 | US20040256314 shear loading in the flow passage to reduce the relative ratio of the number of filamentous microorganisms in relation to flocculating microorganisms; reducing or avoiding the formation of bulking sludge, floating sludge and/or foam in sewage treatment plants |
| 12/23/2004 | US20040256301 Process and means for the treatment of water in an aquaculture system |
| 12/23/2004 | US20040256299 Systems and methods for treating waste water |
| 12/23/2004 | US20040256297 In-pipe wastewater treatment system |
| 12/23/2004 | DE202004016822U1 Klarwasserabzugseinrichtung Clear water discharge device |
| 12/23/2004 | DE10318908A1 Process and assembly to break down grease in waste water grease trap incorporating raft with array of substrate forms for micro-organisms |
| 12/22/2004 | EP1489050A1 Method and device for purifying water |
| 12/22/2004 | EP1489049A1 A waste water treatment system |
| 12/22/2004 | EP1487746A2 Pre- and post-treatment system and method for periphyton filtration using ozone |
| 12/22/2004 | EP1409414B1 Method and device for the treatment of effluent, sludge and organic substrates |
| 12/22/2004 | EP1200360B1 Waste water nitrification |
| 12/22/2004 | CN2665122Y Reactor for sewage recycling biological treatment equipment |
| 12/22/2004 | CN2665121Y 改良的生物流化床 Improved biological fluidized bed |
| 12/22/2004 | CN2665117Y Fat and oil blocking apparatus for biological treatment of high temperature water |
| 12/22/2004 | CN2664367Y Underwater walking type aquatic plant harvesting apparatus |
| 12/22/2004 | CN1180994C Method for increasing waste water treating efficiency by improving activity of sulfate reducing bacteria |
| 12/22/2004 | CN1180993C Human excrement teating bacterial prepn. |
| 12/22/2004 | CN1180992C Human excrement treating bacterial prepn. |
| 12/22/2004 | CN1180991C Combined sewage treating process and apparatus |
| 12/22/2004 | CN1180987C Method of treating industrial waste water by actived sludge-micro-electrolytic process |
| 12/22/2004 | CN1180875C Diaphragm separator |
| 12/21/2004 | US6833074 Waste treatment with control over biological solids |
| 12/16/2004 | WO2004108612A1 Biological deoxygenation method and uses thereof |
| 12/16/2004 | WO2004108611A1 Small-scale treatment unit for waste water |
| 12/16/2004 | WO2004108610A1 Combination of compressor and permanent magnet motor for sewage aeration |
| 12/16/2004 | WO2004108609A1 Fermentation media comprising wastewater and use hereof |
| 12/16/2004 | WO2004080620A3 Bio-reactive permeable barrier for the degradation of organic contaminants |
| 12/16/2004 | US20040254682 Apparatus, system and method for non-chemical treatment and management of cooling water |
| 12/16/2004 | US20040251198 Biological water treatment assembly including a bacteria growthdevice and method associated thereto |
| 12/16/2004 | US20040251197 Adding at least one cell signalling chemical (CSC) such as a bacterial pheromone, a eulcaryotic hormone or a diffusible communication molecule to a sewage substrate, wherein the CSC regulates activity in at least one microbial population in the sewage substrate |
| 12/16/2004 | US20040251189 Collapsible digester |
| 12/16/2004 | DE20316724U1 Liquid gasification apparatus, especially for aerating waste water, with porous gasification membrane containing oligodynamic active material, preferably microbicidal metal ion source, to inhibit fouling |
| 12/16/2004 | CA2570443A1 Biological deoxygenation method and uses thereof |
| 12/16/2004 | CA2522123A1 Combination of compressor and permanent magnet motor for sewage aeration |
| 12/15/2004 | EP1486466A1 Process for transforming digested sludge into humus |
| 12/15/2004 | EP1486465A1 Process for biological treatment of effluents |
| 12/15/2004 | CN2663408Y Upflowing type anaerobic sludge bed reactor |
| 12/15/2004 | CN2663407Y Floating weir notch hydrocone type activated sludge process decanter |
| 12/15/2004 | CN2663406Y Immersed type plain film filter membrane element of membrane bioreactor |
| 12/15/2004 | CN1554600A River course waste water treating method |
| 12/15/2004 | CN1554599A Process for treating waste water by aerobic-anaerobic microbic repeated coupling |
| 12/15/2004 | CN1554598A Waste water treating equipment for eliminating harmful matter in industrial waste water and life waste water |
| 12/15/2004 | CN1554494A Method for repairing soil and zinc and cadmium nollution in water b using Arrow leaf violet |
| 12/15/2004 | CN1179897C Method and device for biological treatment and regenerative utilization of urban night soil and domestic waste water |
| 12/15/2004 | CN1179893C Fixed-microbe sewage-treatment technology |
| 12/14/2004 | US6830690 Water treatment; reducing impurities using microorganisms |
| 12/14/2004 | US6830689 Process for removing phosphorus from wastewater utilizing a triple basin wastewater treatment system |
| 12/14/2004 | US6830688 Nonchemical waste water treatment |
| 12/14/2004 | US6830681 Device and method for holding water for accommodating and growing aquatic organisms |
| 12/14/2004 | CA2291929C Novel microorganisms, microbial symbionts, their culture methods, and methods for treating manganese-containing water using them |
| 12/09/2004 | WO2004106240A1 Method of treating organic waste water and organic sludge and treatment equipment therefor |
| 12/09/2004 | WO2004087282A3 Grease removal system |
| 12/09/2004 | WO2004078655A3 A system for treating wastewater |
| 12/09/2004 | WO2004071959A3 Method and apparatus for determining weight and biomass composition of a trickling filter |
| 12/09/2004 | US20040248268 Extracting metals and minerals from solution using sea sponges or transgenic eukaryotic aquatic organism; biofilters |
| 12/09/2004 | US20040245180 Outlet of the STS is directly connected to the inlet of the flocculation and flotation treatment plant on the stream bed of the water body or next to and interconnected to by an induced flow canal. |