| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 02/02/2000 | CN1243499A Device for intensive biological waste-water treatment |
| 02/02/2000 | CN1243102A Technology and device for removing organic component from oil-field well-drilling waste water |
| 02/01/2000 | US6020293 Mixture of cellulase, water soluble carbonate salt, acid,surfactant and thickener |
| 02/01/2000 | US6019901 Process for removing polyamine chelating agents form aqueous solutions |
| 02/01/2000 | US6019900 Digestion medium that contains denitrifying bacteria, yeast extract, nicl2, and additional nutrients that consist of one or more water-soluble salts of fe, ca, co, mo, k, and p. reduced chemical oxygen demand. |
| 02/01/2000 | US6019817 System and method for capturing and destroying HAP/VOC substances using microbial degradation |
| 02/01/2000 | US6019110 Parts washing system |
| 02/01/2000 | CA2107886C Membranes with immobilized microorganisms thereon and/or therein, process for obtaining such membranes, reactor comprising said membranes and process involving the use of said membranes, in particular for the elimination of metals or the degradation of xenobiotic organic compounds |
| 01/27/2000 | DE19928129A1 New moving bed reactor for the microbiological degrading of hazardous matter has structured inlets for an external fluid phase circuit for a selective suspension circulation for the microorganism carrier material to settle or float |
| 01/27/2000 | DE19723212C2 Verfahren zur Behandlung von Abwasser zur Verbesserung der Denitrifizierung bei gleichzeitiger Dephosphatierung durch Zusatzmittel A process for treating waste water to improve the denitrification while dephosphatation by additive |
| 01/26/2000 | EP0974556A1 Composition for treating wastewater, particularly for treating wastewater of septic tanks |
| 01/26/2000 | EP0643766B1 Improved mixture of nutrients for the bioremediation of polluted soils and waters |
| 01/26/2000 | CN2360404Y Circular-gap water distributor |
| 01/26/2000 | CN2360403Y Treatment groove with functions of collecting kitchen waste, purifying and digestion |
| 01/26/2000 | CN2360402Y Variable microporous aerator |
| 01/26/2000 | CN2360401Y Aeration stirrer |
| 01/26/2000 | CN2360400Y Middle deposite type three phase separation biological fluid-bed |
| 01/26/2000 | CN2360399Y Biological contact oxidation plant |
| 01/26/2000 | CN2360139Y Combined gas, liquid, and solid three-phase separater |
| 01/26/2000 | CN1048660C Process and equipment for separating suspended substances from liquid |
| 01/25/2000 | US6017746 Pure culture of microorganism capable of decomposing halogenated organic acids; for bioremediation |
| 01/25/2000 | US6017020 System and method for diffusing gas bubbles into a body of water |
| 01/25/2000 | US6016839 Air diffuser valve |
| 01/25/2000 | CA2125664C Method to produce single cell oil containing gamma-linolenic acid |
| 01/25/2000 | CA2102797C Anaerobic digestion process |
| 01/20/2000 | WO2000003083A1 A process for concentrating soluble and colloidal substances in process waters |
| 01/20/2000 | WO2000002443A1 Apparatus for oxygenating water |
| 01/20/2000 | DE4306844C2 Verfahren zur kombinierten physikalisch-chemischen Reinigung von Wässern, die mit den Explosivstoffen 2,4,6-Trinitrotoluol, Hexahydro-1,3,5-trinitro-1,3,5-triazin und Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetraocin verunreinigt sind Process for the combined physical-chemical purification of waters, with explosives 2,4,6-trinitrotoluene, hexahydro-1,3,5-trinitro-1,3,5-triazine and octahydro-1,3,5,7 contaminated tetra-nitro-1,3,5,7-tetraocin |
| 01/20/2000 | DE19827877A1 Neural network control of a biological oxidation system for effluent treatment |
| 01/20/2000 | CA2337411A1 A process for concentrating soluble and colloidal substances in process waters |
| 01/19/2000 | EP0971858A1 Method for treating waste water, especially from and malt houses and breweries |
| 01/19/2000 | EP0971857A1 A system for purification of domestic household effluent |
| 01/19/2000 | CN2359280Y Centrifugal worm-gear aeration machine |
| 01/19/2000 | CN2359279Y Oxygen supply device for wast water treatment mixing tank |
| 01/19/2000 | CN1241540A Water treatment system based on denitrification |
| 01/19/2000 | CN1241539A Natural sewage decontaminating and reusing method |
| 01/19/2000 | CN1241538A Intensified ecological sewage decontaminating method for rivers, channels and ditches |
| 01/18/2000 | US6015706 Microorganism resistant to hydrogen peroxide |
| 01/18/2000 | US6015497 Bio-treatment system for removing biological wastes from man-made tanks used to commercially cultivate aquatic animals; cleaning of buoyant filter media used to filter water in an aqua-culture tank |
| 01/18/2000 | US6015496 Spontaneously growing acidogenic bacteria in sewer lines and providing methanogenic bacteria in these lines |
| 01/18/2000 | US6015490 Carrier-separating and water-collecting mechanism of wastewater treatment equipment |
| 01/18/2000 | US6015488 Filter system for septic tank |
| 01/13/2000 | WO2000001803A1 Non-macroporous inorganic support for bioremediation |
| 01/13/2000 | WO2000001623A1 Apparatus and process for sewage and wastewater treatment |
| 01/13/2000 | WO2000001622A2 Method and installation for treating waste water from oil seed and cereal processing |
| 01/13/2000 | WO2000001621A1 Biological means for sanitary drainage of polluted effluents and/or maintenance of sewer pipe system for evacuating said effluents |
| 01/13/2000 | WO2000001470A1 Method for the biological purification of waste waters and waste gases and biofilter therefor |
| 01/13/2000 | DE19909226A1 A controlled eductor is used to transfer atmospheric air into water for the aeration of aquariums and fish ponds, etc. |
| 01/13/2000 | DE19838009A1 Verfahren zur Herstellung eines Festbettkörpers A method for producing a fixed bed body |
| 01/12/2000 | EP0970922A2 Method for methane fermentation of organic waste |
| 01/12/2000 | EP0970921A2 Method for making a fixed-bed body |
| 01/12/2000 | EP0970920A1 Mixed biocenose |
| 01/12/2000 | CN2358066Y Sewage treatment aeration equipment with oxidation channel turnplate |
| 01/11/2000 | US6013511 Precipitating metals or degrading xenobiotic organic compounds with membrane immobilized microorganisms |
| 01/11/2000 | US6013183 Method of liquefying microorganisms derived from biological wastewater treatment processes |
| 01/06/2000 | WO2000000439A1 Method of treating waste water |
| 01/06/2000 | WO2000000275A1 Membrane separation involving a two-phase fluid on membrane side |
| 01/06/2000 | CA2237926A1 Microphyte water restorer |
| 01/05/2000 | EP0968965A1 System and batch process for biological waste water treatment |
| 01/05/2000 | EP0968773A1 Processes for purifying substances polluted with organohalogen compounds |
| 01/05/2000 | EP0968138A1 A method for treating sludge from wastewater treatment |
| 01/05/2000 | EP0968137A1 Wastewater treatment plant for olive oil processing effluents comprising a rotating biological contactor with the addition of linear or circular motion |
| 01/05/2000 | EP0968045A1 Method for recuperating vent gas coming from an ozonization reactor |
| 01/05/2000 | EP0900178A4 Process and apparatus for the treatment of flowable waste |
| 01/05/2000 | EP0579630B1 Membranes with immobilized microorganisms thereon and/or therein, process for obtaining such membranes, reactor comprising said membranes and process involving the use of said membranes, in particular for the elimination of metals or the degradation of xenobiotic organic compounds |
| 01/05/2000 | DE19829673A1 Verfahren und Anlage zur Behandlung von Abwasser aus der Ölfrüchte- und Getreideverarbeitung Method and apparatus for treating wastewater from oil and grain processing |
| 01/05/2000 | CN2357002Y Aerating biological filter |
| 01/04/2000 | US6012020 Apparatus and method for monitoring the condition of septic tanks |
| 01/04/2000 | US6011110 Carrier for bioreactor and method of producing the same |
| 01/04/2000 | US6010629 Sedimentation, injecting a polymer, clarification |
| 01/04/2000 | US6010560 Tube unit and process for its fabrication |
| 12/30/1999 | DE19828175A1 Verfahren zur Behandlung von mit Ammonium hochbelasteten Prozeßabwässern auf dem Abwassergebiet Method for the treatment of highly loaded with ammonium process wastewater to the wastewater field |
| 12/29/1999 | WO1999067300A1 Methods for the removal of unwanted monomer amide compounds from polyamide preparations |
| 12/29/1999 | WO1999067173A2 Filtering plant for waste water |
| 12/29/1999 | WO1999057067A3 Method for cleaning waste water from the production of agar-agar |
| 12/29/1999 | EP0966405A1 Treatment of effluent streams containing organic acids |
| 12/29/1999 | EP0966404A1 Method and device for introducing oxygen into water or aqueous solutions |
| 12/29/1999 | EP0966192A1 Hydroponic plant culture systems |
| 12/29/1999 | EP0670817B1 Method and system for treatment of water and wastewater |
| 12/29/1999 | CN2356028Y Poly biomass biological reactor |
| 12/29/1999 | CN2356027Y Multipurpose high efficiency carrier |
| 12/29/1999 | CN1239709A Membrane type biological reactor |
| 12/29/1999 | CA2335985A1 Methods for the removal of unwanted monomer amide compounds from polyamide preparations |
| 12/29/1999 | CA2334829A1 Filtering plant for waste water |
| 12/28/1999 | US6008028 Compositions of constructed microbial mats |
| 12/28/1999 | US6007721 Directing waste water into the biological filter and through a filter bed that supports a biomass used to degrade carbon-based and/or nitrogen-based pollution of the water to be filtered, directing oxygenated gas into the filter bed |
| 12/28/1999 | US6007720 Process for treatment of organic wastewater |
| 12/28/1999 | US6007719 For treatment of high concentrated waste water from animal husbandry, human excretion and other high organic waste; process includes warming, anaerobic digestion, separation with ultrafiltration reversed osmosis membranes |
| 12/28/1999 | US6007712 Comprising tank in which carrier particle immobilizing a microbe is charged, which microbe has property of decomposing and eliminating an organic and/or an inorganic matter in a waste water, and a membrane module for filtration |
| 12/23/1999 | WO1999066080A1 Compositions and method for bioremediation of halogen contaminated soils |
| 12/23/1999 | WO1999065830A1 Mediated biological-abiotic waste treatment |
| 12/23/1999 | WO1999065829A1 Aerated pond wastewater treatment system and process |
| 12/23/1999 | DE19826964A1 Biological film waste water treatment plant employing alternating anaerobic and anoxic conditions |
| 12/23/1999 | DE19826098A1 Stirring equipment for activated sludge process conducted in circular tank |
| 12/23/1999 | CA2335697A1 Aerated pond wastewater treatment system and process |
| 12/23/1999 | CA2299328A1 Mediated biological-abiotic waste treatment |
| 12/22/1999 | EP0965566A2 A method for treating organic waste water |
| 12/22/1999 | EP0964831A1 Method for acquiring grain-shaped growth of a microorganism in a reactor |
| 12/22/1999 | CN2354948Y Suspended creature carrier |
| 12/22/1999 | CN2354947Y Filler |