| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 10/30/2001 | US6309547 Anaerobic treatment process with removal of nonbiodegradable organic material |
| 10/30/2001 | US6309539 Filtration and subsurface distribution system |
| 10/25/2001 | WO2001079765A1 Torsion generator |
| 10/25/2001 | WO2001079121A1 A reactor |
| 10/25/2001 | WO2001078884A1 Differential injector |
| 10/25/2001 | DE10017690A1 Vorrichtung zum Stoffaustausch und Kultivierung von Zellen An apparatus for mass transfer and culturing of cells |
| 10/24/2001 | EP1147063A1 Process for the treatment of waste water containing heavy metals |
| 10/24/2001 | EP1147062A1 Method and installation for sanitizing surface water |
| 10/24/2001 | EP1146955A1 Immersed membrane filtration system and overflow process |
| 10/24/2001 | EP1146954A1 Immersed membrane element and module |
| 10/24/2001 | EP0961760B1 Device for carrying out a method for cleaning waste-water |
| 10/24/2001 | EP0880475B1 Process for the treatment of water containing heavy metal ions |
| 10/24/2001 | EP0874785B1 Method and device for introducing a gas or gas mixture into a liquid |
| 10/24/2001 | CN2455710Y Biological treating channel for wastewater |
| 10/24/2001 | CN2455709Y Life sewage treating apapratus |
| 10/24/2001 | CN1319032A Apparatus and method for cleaning membrane filtration modules |
| 10/24/2001 | CN1318523A Combined treatment of molasses alcohol effluent resource |
| 10/23/2001 | US6306304 Simplification, efficiency |
| 10/23/2001 | US6306302 Process for treatment of sulphate-containing water |
| 10/23/2001 | US6306299 Filtration device for a waste water treatment system |
| 10/23/2001 | US6306296 Groundwater and soil remediation with microporous diffusion apparatus |
| 10/18/2001 | WO2001077284A2 Device for material exchange and the cultivation of cells |
| 10/18/2001 | WO2001077033A1 Biofiltering system for treating wastewater effluent |
| 10/18/2001 | WO2001077032A1 Biofiltering device for treating wastewater |
| 10/18/2001 | WO2001077028A1 A method and a device for purifying water |
| 10/18/2001 | WO2001076718A1 Improved filtration device for a waste water treatment system |
| 10/18/2001 | US20010031493 Simultaneous decolorization and detoxification of molasses spent wash using novel white rot-lignin-modifying fungus flavaodon flavus |
| 10/18/2001 | US20010030151 Wastewater dispersal system |
| 10/18/2001 | DE10017537A1 Basin for biological sewage processing contains suspended columns of fixed-bed bodies as blocks for cultivation of the biological material at a carrier/lifting frame |
| 10/18/2001 | DE10001181A1 Simultaneous sedimentation and denitrification of waste water using a subdivided activation tank to prevent interruption of the clear water outflow |
| 10/17/2001 | EP1144319A1 Sludge density measurement for controlling a sludge treatment stage |
| 10/17/2001 | EP1144318A1 Method for treating an effluent using simultaneous nitrification/denitrification in a trickling filter |
| 10/17/2001 | EP1144317A1 Device for the aerobic microbiological treatment of waste water |
| 10/17/2001 | EP1144316A1 Utilization of oil-in-water emulsions in aerobic biological sewage treatment plants |
| 10/17/2001 | CN2454372Y Moveable oxygenation-ditch rotary-disc aeration machine |
| 10/17/2001 | CN2454371Y Biological carrier |
| 10/17/2001 | CN2454370Y Intensified pretreatment apparatus for sewage soil treatment |
| 10/17/2001 | CN2454369Y Aeration biological fluidizing tank |
| 10/17/2001 | CN1317452A Overlapped bio-chemical filter |
| 10/16/2001 | US6303367 Method for purifying matter contaminated with halogenated organic compounds |
| 10/16/2001 | US6303035 For filtering water in a batch mode with a suitable chemical cleaning regimen. |
| 10/16/2001 | US6303034 Ozonizes a microorganism-mixed liquid; reduces the amount of microorganisms remaining, prevents a microorganism floc from sedimenting inappropriately. |
| 10/16/2001 | US6303027 Apparatus for controlling quality of treated water |
| 10/16/2001 | US6303026 Wastewater treatment tank with influent gates and pre-react zone with an outwardly flared lower portion |
| 10/16/2001 | US6303025 Water purification system with baffled flow |
| 10/16/2001 | US6302942 Methods for removing pollutants from contaminated soil materials with a fern plant |
| 10/16/2001 | CA2191444C Method and apparatus for the biochemical purification of a liquid medium |
| 10/11/2001 | WO2001074725A1 Potable water purification process including biofiltration |
| 10/11/2001 | WO2001074471A1 Universal method and apparatus for conversion of volatile compounds |
| 10/11/2001 | US20010027950 Cyclic aeration system for submerged membrane modules |
| 10/11/2001 | US20010027948 Nitrogen reduction wastewater treatment system |
| 10/11/2001 | US20010027947 Bioremediation wherein the pollutant such as dioxins and microorganisms are together incorporated in a microorganism produced polymer such as a polyamino acid or polysaccharide; efficient bioactivity |
| 10/11/2001 | US20010027942 Biofiltering system for treating wastewater effluent |
| 10/11/2001 | DE10015568A1 Reactor used for the biological treatment of household waste water comprises trench having base with slope and suction point of pumping group or base of pumping shaft located at lowest point |
| 10/10/2001 | EP1142837A1 Apparatus for the biological treatment of especially waste water |
| 10/10/2001 | EP1142836A1 Process and devise for the nitrification of polluted water |
| 10/10/2001 | EP1141702A1 APPARATUS AND METHOD FOR MEASURING NOx AND NITRIFICATION/DENITRIFICATION RATES IN BIOCHEMICAL PROCESSES |
| 10/10/2001 | EP1140708A1 A reactor and process for biologically treating sewage |
| 10/10/2001 | EP1140707A1 Biological treating apparatus for tannery waste water and for reduction of its sludge |
| 10/10/2001 | EP1140706A1 Submerged membrane bioreactor for treatment of nitrogen containing water |
| 10/10/2001 | EP1140330A1 Water filtration using immersed membranes |
| 10/10/2001 | EP1044169A4 Water reclamation system for a vehicle wash system |
| 10/10/2001 | EP0859747B1 Process for the aerobic biological break-down of substances having low water-solubility, and a micro-organism of the strain ihi-91 |
| 10/10/2001 | CN2453000Y Moveable packings |
| 10/10/2001 | CN1316392A Wind-driven combined aerator for treating sewage |
| 10/10/2001 | CN1316391A Biologic process for treating sewage |
| 10/10/2001 | CN1316390A Multi-activity sewer and its sewage-treating process |
| 10/10/2001 | CN1072614C Method for simultaneously processing kitchen waste water and new refuse |
| 10/10/2001 | CN1072613C Anaerobic reaction pool and method for treating waste water |
| 10/10/2001 | CN1072612C Method for treating water containing organic sulfur compounds and its apparatus |
| 10/10/2001 | CN1072611C Biological treatment method for waste water |
| 10/09/2001 | US6300121 Method for reducing bioavailability of lead by a lead-sequestering soil bacterium |
| 10/09/2001 | US6299776 Biochemical oxidation system and process |
| 10/09/2001 | US6299775 Waste and wastewater treatment and recycling system |
| 10/09/2001 | US6299774 Converting cellulose-containing feedstock into useful materials |
| 10/04/2001 | WO2001072645A1 Method and device for producing ultrapure water |
| 10/04/2001 | WO2001072644A1 Nitrogen reduction wastewater treatment system |
| 10/04/2001 | WO2001072643A1 Method and apparatus for treating waste water |
| 10/04/2001 | US20010027087 Electromagnetic blower and two-passage air supply apparatus using the same |
| 10/04/2001 | EP1138371A1 Device for water aeration |
| 10/04/2001 | EP1138363A2 Device and method for withdrawing purified water from a container in the biological purification of waste water |
| 10/04/2001 | EP1137602A1 Method and installation for treating sludge derived from biological purification plants |
| 10/04/2001 | EP1137467A1 Device for withdrawing clarified water from clarification plants with a discontinuous operation |
| 10/04/2001 | EP0946241B1 Waste water treatment plant |
| 10/04/2001 | DE10039984A1 Waste water cleaning installation comprises process chamber provided with means serving for performance of various functions which jointly constitute the required water cleaning process |
| 10/04/2001 | DE10013779A1 Treatment of waste water and biological waste comprises feeding sludge from activated sludge basin to post-clarification basin, unstabilized activated sludge also being recycled to biogas generator together with excess of bio genic waste |
| 10/03/2001 | CN2451577Y Pipe type air dissipation apparatus with improved structure |
| 10/03/2001 | CN2451576Y Free body gimp type water treatment packing |
| 10/03/2001 | CN1315294A Process for treating waste water from production of gournet powder |
| 10/02/2001 | US6297033 Permeable denitrifying beads; for the removal nitrate fish aquariums and other effluents |
| 10/02/2001 | US6296766 Anaerobic digester system |
| 09/27/2001 | WO2001072091A1 Method and apparatus for manufacturing organic el display |
| 09/27/2001 | WO2001070989A2 Genetically modified plants and plant cells comprising heterologous heavy metal transport and complexation proteins |
| 09/27/2001 | WO2001070637A1 Method for direct clarification of ground water polluted with nitrate |
| 09/27/2001 | WO2001070636A1 Sewage and wastewater disposal system |
| 09/27/2001 | WO2001070635A1 Wastewater treatment apparatus and method for recycling material for wastewater treatment |
| 09/27/2001 | WO2001070407A1 Heated ultrasonic treating device and treating method for suspended matter-containing liquid |
| 09/27/2001 | US20010025011 Environmental protection technique; bivalve-culture industries; host specific |
| 09/27/2001 | US20010023849 Dissolved ammonium oxidized to nitrate to acidify solution; metal salt added; reacts with phosphorous; resultant metal phosphate precipitates in acidic environment and is removed |
| 09/27/2001 | US20010023847 Biodegradation of tetrachloroethylene and carbon tetrachloride; injecting butane to stimulate bacteria |