| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 03/25/2004 | US20040055974 Membranes for forming biosolid concentrates |
| 03/25/2004 | US20040055970 Combustion of waste prevents piping of combustion furnace from blocking interiors; pollution control |
| 03/25/2004 | US20040055960 Directional wastewater aerator and method |
| 03/25/2004 | US20040055953 Enzyme is produced by a fungus of the genus Penicillium restrictum isolated from agribusiness wastes, used for the treatment of liquid, paste, semi-solid effluents, both domestic/industrial containing fats, proteins, carbohydrates |
| 03/25/2004 | US20040055952 Anaerobic digester |
| 03/25/2004 | US20040055951 Apparatus and method for treating wastewater containing nitrogen-containing dyes |
| 03/25/2004 | DE20317597U1 Fluid bed reactor for the treatment of effluent water arising from domestic and trade wastes introduces oxygen via venturi jet to coarse foam particle with pores |
| 03/25/2004 | CA2497283A1 A method for digestion of sludge in water purification |
| 03/24/2004 | EP1056688B1 Method for cleaning of leachate |
| 03/24/2004 | CN2607366Y Anaerobic biological, biochemical sewage purifier |
| 03/24/2004 | CN1483813A Heterotrophic nitrobacteri, culturing method and application thereof |
| 03/24/2004 | CN1483683A Method for removing phosphorus from urban sewage |
| 03/24/2004 | CN1483682A Activated carbon film filler catalytic oxidation treatment method for polluted hydrobios |
| 03/24/2004 | CN1483681A Modularized sewage biological treatment apparatus and technology |
| 03/24/2004 | CN1142895C Biofilm carrier for water and waste water purification, and use thereof |
| 03/24/2004 | CN1142893C Sewage treatmeng device |
| 03/23/2004 | US6709594 Method for treating waste-activated sludge using electroporation |
| 03/23/2004 | US6709593 Problematic waste water containing organic impurities and absorbable organic halogen compounds is subjecting to an anaearobic treatment zone for degradatin and the digested sludge received from the zone is mechanically de-watered |
| 03/23/2004 | US6709592 Anaerobic chemical reactors; gas stripping |
| 03/23/2004 | US6709591 Treating wastewater; use of a downflow bioreactor filled with active anaerobic granular biomass |
| 03/23/2004 | US6709574 Fish pond filter system |
| 03/23/2004 | US6708957 Moving aerator for immersed membranes |
| 03/18/2004 | WO2004022494A1 Method for eliminating oil and fat or pollutants containing oil and fat |
| 03/18/2004 | WO2004022488A2 Method and apparatus for enhancing wastewater treatment in lagoons |
| 03/18/2004 | WO2003022752A9 Biofilm reduction in crossflow filtration systems |
| 03/18/2004 | US20040055040 Genetically modified plants and plant cells comprising heterologous heavy metal transport and complexation proteins |
| 03/18/2004 | US20040050779 Water treatment; reducing impurities using microorganisms |
| 03/18/2004 | US20040050778 Method of producing hydrogen gas by using hydrogen bacteria |
| 03/18/2004 | US20040050777 Integrated anaerobic waste management system with energy and products recovery |
| 03/18/2004 | US20040050765 Wastewater aeration system with lift out lateral pipes and diffusers |
| 03/18/2004 | US20040050764 Oxidation of butane to methane and carbon dioxide; water pollution control |
| 03/18/2004 | DE20318973U1 Carrier member for a biofilm used in treating waste water or air, consists of spheres with parallel lamina members |
| 03/18/2004 | DE10241494A1 Porous material used for water purification and treatment has crystal-analogous overstructure formed by regular structure of particles and regular pores and consists (partly) of titanium (di)oxide |
| 03/18/2004 | DE10005114B4 Verfahren zur Biomasse-Rückhaltung bei Biogasreaktoren sowie Vorrichtung zur Durchführung des Verfahrens A process for the biomass retention in biogas reactors, and device for carrying out the method |
| 03/17/2004 | EP1140707B1 Biological treating apparatus for tannery waste water and for reduction of its sludge |
| 03/17/2004 | EP1051361B1 Waste water treatment, media therefor and its manufacture |
| 03/17/2004 | CN2606743Y Filter of waste water bio-chemical processing pool |
| 03/17/2004 | CN2606742Y Water purifier for micro polluted water source |
| 03/17/2004 | CN2606741Y Bio-chemical processing pool of cut-off active mud for waste water |
| 03/17/2004 | CN1483003A Aerobic polishing system for wastewater |
| 03/17/2004 | CN1482105A Method of producing organic fertilizer by fermenting saponin fag-end and wastewater |
| 03/17/2004 | CN1482080A Apparatus and method for treating wastewater containing nitrogen-containing dyes |
| 03/17/2004 | CN1482077A Activated sludge process for treating beer wastewater |
| 03/17/2004 | CN1482076A Sewage purification method and apparatus therefor |
| 03/17/2004 | CN1482075A Original water biologic pretreatment method using suspended padding and apparatus therefor |
| 03/17/2004 | CN1481922A Filtering material with micropore and film for treating water |
| 03/16/2004 | US6706189 Aerator connecting to air blower; valves; controllers; alternating gas flow |
| 03/16/2004 | US6706185 Biological method of phosphorus removal and biological phosphorus-removing apparatus |
| 03/16/2004 | US6706171 Systems for treating wastewater in a series of filter-containing tanks |
| 03/11/2004 | WO2004020349A1 Method and device for treating effluents, in particular water, by membrane separation |
| 03/11/2004 | WO2004020348A1 Waste water purifying plant for a one family house |
| 03/11/2004 | WO2003097534A3 Effluent treatment method and installation |
| 03/11/2004 | WO2003027555A3 Porous pipe |
| 03/11/2004 | US20040047691 Organic slurry storage basin cover |
| 03/11/2004 | US20040045901 Building a lagoon based advanced treatment system or upgrading an existing lagoon system for advanced treatment of wastewater. The lagoon is provided with a baffle to create a complete mix zone in which an aeration system and |
| 03/11/2004 | US20040045900 Anaerobic bioreactor for the wastewater-treatment plant |
| 03/11/2004 | US20040045899 Water treatment digester includes a flexible bladder, a frame, and a plurality of filter plates. The flexible bladder is movable from a collapsed position wherein the bladder is folded into a substantially flattened state to an expanded |
| 03/11/2004 | US20040045898 Enhanced through generation and introduction of specific biological populations customized to perform or favor specific, tasks either during the main process, or for solids minimization purposes in a post-treatment process. These |
| 03/11/2004 | US20040045885 Waste treatment system for treatment of organic waste and digested liquid thereof |
| 03/11/2004 | DE20317907U1 Biologische Kläranlage Biological wastewater treatment plant |
| 03/11/2004 | DE10238957A1 Reduction of hexavalent uranium concentration in running water, for purifying water e.g. from flooded uranium mine, waste-heap leachate or ground water, comprises use of mixture of chicken manure and feldspar in geochemical barrier |
| 03/11/2004 | DE10238624A1 Water aeration tank has parallel array of alternately operated air discharge outlets setting up air/water vortices |
| 03/11/2004 | DE10128930B4 Teichanlage, insbesondere zur Nutzung als Schwimm- und Badeteich Pond, especially for use as swimming and bathing pond |
| 03/11/2004 | DE10057378B4 Verfahren zum Betreiben einer Kläranlage sowie steuerbare Klarwasser-Entnahmepumpe zur Durchführung d. Verfahrens A method of operating a sewage treatment plant and controllable clarified water removal pump for performing d. Process |
| 03/10/2004 | EP1396587A1 Tank |
| 03/10/2004 | CN1480412A System for treating wastewater of organic nitrogen compound in high concentration and processing technique |
| 03/10/2004 | CN1480411A Method for reconditioning water body in eutrophication through plants |
| 03/10/2004 | CN1480410A Flocculation method for prevemting membrane from pollution and maintaining flux of membrane |
| 03/10/2004 | CN1480409A Preparation method of preparative membrane for prevemting membrane from pollution and maintaining flux of membrane |
| 03/10/2004 | CN1480408A Up-flow type response operator for anaerobic ammoxidation biomembrane |
| 03/10/2004 | CN1141260C Circular effcient domestic sewage purifying methane apparatus |
| 03/10/2004 | CN1141259C Ecological cultivation and planting process by using industrial organic waste water anaerobic fermentation liquor |
| 03/09/2004 | US6702938 Odor reduction system for waste holding tanks |
| 03/04/2004 | WO2004018370A1 Device for removing manganese in raw water |
| 03/04/2004 | WO2004018067A2 Airlift membrane device, bioreactor and bioreaction process |
| 03/04/2004 | WO2004009496A3 Portable/mobile wastewater treatment unit |
| 03/04/2004 | WO2002085791A3 Pcr-based monitoring in wastewater biotreatment systems |
| 03/04/2004 | US20040043394 Arylhydrocarbon receptor (AhR) |
| 03/04/2004 | US20040040908 Spa water circulation system |
| 03/04/2004 | US20040040907 Aeration tanks; water pollution control; denitrification, diphosphorization |
| 03/04/2004 | US20040040900 Apparatus for the biological purification of water containing organic materials and derived products thereof |
| 03/04/2004 | DE10002660B4 Reaktor zum Enthärten und/oder Aufbereiten von Wasser Reactor for softening and / or preparation of water |
| 03/03/2004 | EP1392608A1 Bioreactor for sewage and wastewater treatment |
| 03/03/2004 | EP1392606A1 Plant and method for purification of water coming from a seulphuration kerosene plant |
| 03/03/2004 | EP1392218A2 Gram-positive fatty acid degrader |
| 03/03/2004 | EP1392110A1 Aquarium filter system |
| 03/03/2004 | CN2605252Y Efficient dephosphorizing-denitrificating improved oxydation channel |
| 03/03/2004 | CN2605251Y Speed-variable flow-raising type anaerobic hydrolytic reactor |
| 03/03/2004 | CN2605250Y Composite anaerobic waste-water treatment device |
| 03/03/2004 | CN2605249Y Improved mud-discharging device of radial-flow sedimentation tank mud scrap-suction machine |
| 03/03/2004 | CN1479697A 净化装置 Purification devices |
| 03/03/2004 | CN1478891A Active carbon composite hydrophili polyurethane foamed microorganism fixed carrier |
| 03/03/2004 | CN1478736A Method and device of using compound microorganism and nanometer compound carrier to treat toilet sewage |
| 03/03/2004 | CN1478735A Active microorganism carrier for use in biological treatment |
| 03/03/2004 | CN1478734A Functional ceramsite carrier and its fixed microorganism treating sewage technology |
| 03/03/2004 | CN1478733A Organic waste water treatment biological module system and its regulation and control |
| 03/03/2004 | CN1478732A Complex type internal circulation bioreactor |
| 03/03/2004 | CN1140677C Disintegrating system in waste pipe |
| 03/03/2004 | CN1140475C Toilet excrements treating process |
| 03/03/2004 | CN1140471C Process for decoloring by cometabolism of immobilized bionts |