| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 03/03/2004 | CN1140469C Method for oxygenating water therewith and its apparatus |
| 03/03/2004 | CN1140360C Method and device for comprehensively treating life garbage, excrement, and sewage in urban area to make them become useful resources |
| 03/02/2004 | US6699391 Biofilm reduction in crossflow filtration systems |
| 03/01/2004 | WO2004078375A1 Additive for use in restoration of contaminated soil, ground water or sediment soil |
| 02/26/2004 | WO2003097817A9 Novel microorganism acidovorax temperans and uses therefor |
| 02/26/2004 | WO2003091160A3 Process for treatment of organic wastes |
| 02/26/2004 | WO2003035554A3 Improved methods, processes and apparatus for bio-solids recycling and the product of bio-solids from such methods, processes and apparatus |
| 02/26/2004 | WO2002092519B1 Method of separating suspension, in particular for waste water treatment, and an apparatus for performing the same |
| 02/26/2004 | US20040038383 Method for treating an organic gas |
| 02/26/2004 | US20040036185 Differential injector |
| 02/26/2004 | US20040035786 Airlift membrane device and membrane bioreactor and bioreactor process containing same |
| 02/26/2004 | US20040035770 Dynamically responsive aerobic to anoxic inter-zone flow control system for single vessel multi-zone bioreactor wastewater treatment plants |
| 02/26/2004 | US20040035716 A water treatment by an electrochemical process to remove nitrogen-containing compound, purification, denitrification, using a metallic or alloy conductive cathode |
| 02/26/2004 | US20040035047 Biotreatment of cheese-processing wastewater by cultivating mushroom mycelia |
| 02/25/2004 | EP1390306A1 Method of separating suspension, in particular for waste water treatment, and an apparatus for performing the same |
| 02/25/2004 | EP1390305A1 Device for biological fluid treatment |
| 02/25/2004 | EP1390304A1 Biological treatment reactor in a purification plant |
| 02/25/2004 | EP1390303A1 Environmental remediation method and apparatus |
| 02/25/2004 | CN1478144A Production process and composition of an enzymatic preparation and its use for treatment of domestic and industrial effluents of high fat, protein and/or carbohydrate content |
| 02/25/2004 | CN1478059A Process and apparatus for treating waste water |
| 02/25/2004 | CN1139546C Biological flocculant pepared from Nocardia bacteria |
| 02/19/2004 | WO2004014809A2 Method and facility for treatment of sludge derived from biological water purification facilities |
| 02/19/2004 | WO2004014576A1 Organic waste disposal device |
| 02/19/2004 | WO2004014532A1 Strip diffuser pct i |
| 02/19/2004 | US20040031751 Organic waste treatment method |
| 02/19/2004 | US20040031734 Apparatus for treating wastewater from catering industry |
| 02/19/2004 | DE19650482B4 Energieoptimierte Kläranlage Energy-optimized treatment plant |
| 02/19/2004 | DE10231908A1 Self-regulating parametric process for oxygenation of activated sludge in waste water treatment plant based on redox potential and/or pH value and waste water plant load |
| 02/18/2004 | CN2603804Y Anaerobic reactor |
| 02/18/2004 | CN1475449A No energy consumption automatic aeration device |
| 02/18/2004 | CN1475448A Fortified artificial wetlan sewage disposal method and system |
| 02/18/2004 | CN1138855C Method for monitoring bio-activity in fluids |
| 02/18/2004 | CN1138708C Waste water treating device |
| 02/17/2004 | US6692642 Organic slurry treatment process |
| 02/17/2004 | US6692641 Water purification; killing algae; positioning plants to shield solar radiation |
| 02/17/2004 | US6691939 Pressure differential material transport and disposal system |
| 02/12/2004 | WO2004013337A1 Apparatus for processing elemental sulfur-bearing materials to produce sulfuric |
| 02/12/2004 | WO2004013054A1 A method of controlling microthrix parvicella proliferation of waste treatment plants |
| 02/12/2004 | US20040026317 Activated sludge; removal solids; flocculation before filtration |
| 02/12/2004 | US20040025961 Effluent purifying device |
| 02/12/2004 | DE20310249U1 Sub-surface waste water and sewage treatment plant for remote settlement is incorporated within single sub-surface horizontal glass fiber pipe |
| 02/12/2004 | DE19704692B4 Reinigungsverfahren und Reinigungssystem für Seen und Sümpfe Cleaning methods and cleaning system for lakes and marshes |
| 02/12/2004 | DE10159914B4 Verfahren zur selektiven Anreicherung von natürlichen extrazellulären polymeren Substanzen, Anordnung zur Durchführung und Anwendungen des Verfahrens A process for the selective enrichment of natural extracellular polymeric substances, arrangement for conducting and applications of the method |
| 02/11/2004 | EP1388524A1 Discontinuous sewage treatment process and small installation for carrying out this process |
| 02/11/2004 | EP1387815A1 Periphyton filtration pre- and post-treatment system and method |
| 02/11/2004 | CN2603138Y Circular flushing type environment protection closet |
| 02/11/2004 | CN2603080Y Excrement and urine sewage treatment and reuse device |
| 02/11/2004 | CN2603079Y Micropressure internal circulation active mud and waste water treatment device |
| 02/11/2004 | CN1473775A Microbial reinforced film biological reactor for waste water purification and recovery |
| 02/11/2004 | CN1473774A Reaction pool of waste water biological treatment |
| 02/11/2004 | CN1137863C Biologic process for treating sewage |
| 02/11/2004 | CN1137862C Domestic sewage treating system |
| 02/10/2004 | US6689274 Combining organic waste with liquid, treating in aqueous environment containing about 1015 or more microorganisms, adding oxygen to maintain less than 2.0 mg/l of dissolved oxygen, separating solids to recover humus material |
| 02/10/2004 | US6689262 Microbubbles of oxygen |
| 02/05/2004 | WO2004011377A2 Treatment of wastewater by biological and membrane separation technologies |
| 02/05/2004 | WO2003076349A3 Plant and method for the disposal of zootechnical sewage |
| 02/05/2004 | US20040023086 Methane fermentation of organic matter, especially in a proton exchange membrane fuel cell |
| 02/05/2004 | US20040022698 Configured for manufacturing sulfuric acid from elemental sulfur-bearing materials using biological oxidation |
| 02/05/2004 | US20040020850 Aerobic method of removing total dissolved solids (TDS) from tannery wastewaters |
| 02/05/2004 | US20040020849 Wastewater trickle tower with curtain(s) |
| 02/05/2004 | US20040020848 In situ immobilization of metals within density variant bodies of water |
| 02/05/2004 | DE4430371B4 Wasserbehandlungskeramik und Verfahren zu ihrer Herstellung Water treatment ceramic and process for their preparation |
| 02/05/2004 | DE10231254A1 Waste water treatment plant has activated sludge tank including partition with aerator fields on either side, which are mutually-offset in plan view |
| 02/05/2004 | CA2833718A1 Biomimetic membranes |
| 02/04/2004 | EP1386539A1 Cheese-like dairy products and process for producing the same |
| 02/04/2004 | EP1385793A1 Organoboron waste stream treatment using hydrogen peroxide |
| 02/04/2004 | EP0836644B1 Means and process for nitrate removal |
| 02/04/2004 | CN2602019Y Fecal sewage further treating apparatus for ecological public lavatory |
| 02/04/2004 | CN2602018Y Jet diffusing aeration device |
| 02/04/2004 | CN1473136A Method for separating gas, water and biomass and three-phase separating system |
| 02/04/2004 | CN1472145A Sewage containing high concentration organics and ammonia nitrogen disposal method |
| 02/04/2004 | CN1137059C Wind-driven combined aerator for treating sewage |
| 02/04/2004 | CN1137058C Biological treating appts. for tannery waste and for reduction of its sludge |
| 02/04/2004 | CN1136956C Reactor for non-intersoluble multiple medium phases of different specific weight and its operation method |
| 02/03/2004 | US6685835 Method for filtering surface water with thin supernatant layer and implementing plant |
| 02/03/2004 | US6685826 Fish pond filter system |
| 01/29/2004 | WO2004009500A1 Sewage treatment process by activated-sludge method comprising line atomizing treatment |
| 01/29/2004 | WO2004009496A2 Portable/mobile wastewater treatment unit |
| 01/29/2004 | US20040018608 Biological process for colour reduction of pulp and paper effluent |
| 01/29/2004 | US20040017016 Aerator and mixer |
| 01/29/2004 | US20040016703 Agent for treating waste water and waste water treatment system |
| 01/29/2004 | US20040016698 Enhanced activated sludge treatment |
| 01/29/2004 | US20040016697 For delivering activated microorganisms to an environment to be treated |
| 01/29/2004 | US20040016523 Bacterial strain MTCC 5098 and a method of reducing total dissolved solids (TDS) from pulp and paper wastewater effluents using the said strain |
| 01/28/2004 | CN1471424A Fiber membrane arrangement |
| 01/27/2004 | US6682653 Floated biological treatment apparatus and process for purifying refractory wastewater or raw water |
| 01/22/2004 | WO2004007379A1 Compositions for removing hydrocarbons and halogenated hydrocarbons from contaminated environments |
| 01/22/2004 | WO2004006661A1 Water distributor device for aquariums, ponds and the like provided with a possible biological filter |
| 01/22/2004 | WO2002094015A3 Denitrification of aquarium water with the aid of polycaprolactone |
| 01/22/2004 | US20040014622 Detergent |
| 01/22/2004 | US20040014188 Compositions including ammonia oxidizing bacteria to increase production of nitric oxide and nitric oxide precursors and methods of using same |
| 01/22/2004 | US20040011738 Aerated grit chamber and method |
| 01/22/2004 | US20040011737 Aerobic wastewater digestion unit useful for degrading organic material dissolved or suspended in a wastewater stream |
| 01/22/2004 | US20040011736 For controlling a wastewater treatment of using a microorganism that can degrade a specific compound |
| 01/22/2004 | US20040011735 Pollution control; for use in treatment of waste water having beneficial bacteria added thereto, which bacteria are used to break down and consume plant biological materials |
| 01/22/2004 | US20040011734 Partitioned into a first zone for storing and settling hog waste, a second zone for carrying out sequence batch reaction onto the supernatant, a third zone to store processed liquid materials from one and two and fourth zone for fermentation |
| 01/22/2004 | US20040011718 Biosolids flow-through thermophilic treatment process |
| 01/22/2004 | DE10231217A1 Füll- und/oder Bewuchskörper aus Kunststoff Filling and / or vegetation body made of plastic |
| 01/22/2004 | CA2790114A1 Compositions for removing hydrocarbons and halogenated hydrocarbons from contaminated environments |
| 01/21/2004 | EP1382577A2 Method and device for the purification of waste water containing a denitrification basin in an aeration tank |