| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 10/22/2003 | CN2581437Y Internal circulation anaerobic reactor |
| 10/22/2003 | CN2581436Y Aerating disc for disc type meter aerator |
| 10/22/2003 | CN2581435Y Biochemical treater for papermaking waste water |
| 10/22/2003 | CN1450005A Method for treating waster water of cane mill by biological bacteria |
| 10/22/2003 | CN1450004A Method for synchronous nitration/denitration treating urban waste water by sequence batch reactor (SBR) biological membrane process |
| 10/22/2003 | CN1450003A Batch circulated upflow sludge bed organic waste water treatment process |
| 10/21/2003 | US6635177 Introducing sewage to the bottom of a fermentation cell; removing suspended solids, microorganisms, nutrients, and pathogens from the sewage to produce a disinfected quaternary effluent; producing purified water |
| 10/16/2003 | WO2003084881A1 Plantations equipped for treatment of organic effluents by biosanitization |
| 10/16/2003 | WO2003084880A1 Separation systems with charge mosaic membrane |
| 10/16/2003 | WO2002079103A3 Activated sludge wastewater treatment for removal of endocrine disrupters |
| 10/16/2003 | US20030192825 Membrane bioreactor using non-woven fabric filtration |
| 10/16/2003 | US20030192817 Quick-Connect DiffuserAssembly |
| 10/16/2003 | DE20312893U1 Small clarification device, for removing microbes from water comprises a chamber and a height-adjustable clarified water pump and aerator |
| 10/16/2003 | DE20220463U1 Imparting longer gas permeability lifetime to settling tank membranes comprises incorporation of a waste water biologically active inhibitor |
| 10/15/2003 | EP1352953A2 Fungal inoculum, method for its preparation and methods for its utilisation for the treatment of waste water with high content in organic material |
| 10/15/2003 | EP1351895A2 Method and conditioning agent for treating waste water and air pollutants |
| 10/15/2003 | EP1351894A1 Aerobic polishing system for wastewater |
| 10/15/2003 | CN2579889Y Waste water purifying device by microbial technology |
| 10/15/2003 | CN2579888Y Anaerobic/aerobic integrated super deep layer aeration waste water biological denitrification device |
| 10/15/2003 | CN2579887Y Batched membrane biological reactor |
| 10/15/2003 | CN1449363A Method and apparatus for treating wastewater using membrane filters |
| 10/15/2003 | CN1448350A Method and device for biological treatment and regenerative utilization of urban night soil and domestic waste water |
| 10/15/2003 | CN1448347A Prep. of vegetable fiber biological filler |
| 10/15/2003 | CN1448346A Method for treatment of waste water containing ammonia using caustic soda as alkali source |
| 10/15/2003 | CN1448208A Method and device for treatment of organic waste gas |
| 10/15/2003 | CN1124232C Device and method for treating water containing phosphoric acid ion |
| 10/14/2003 | US6632649 Culturing; cobalt salt, air, oxygen; useful for water treatment; tert-amyl methyl ether; methyl tert-butyl ether; ethyl tert-butyl ether |
| 10/14/2003 | US6632365 Digestion and oxidation of sludge |
| 10/14/2003 | US6632364 Reductive dechlorination, the precipitation of chromium, the precipitation of heavy metals, and microbial denitrification |
| 10/14/2003 | US6632363 Hydrophobic composition distributes the microbial agent efficiently and uniformly to the water application and target plants and/or organisms. |
| 10/14/2003 | US6632362 Vacuum retort anaerobic digestion (VRAD) system and process |
| 10/10/2003 | CA2381392A1 Aerobic treatment of liquids to remove nutrients and control odors |
| 10/09/2003 | WO2003082753A1 Method and device for destroying cellular structures in waste water and sludge in biological sewage works |
| 10/09/2003 | WO2003082752A1 Circular installation for the biological treatment of wastewater. |
| 10/09/2003 | WO2003082747A1 Effluent and wastewater treatment apparatus |
| 10/09/2003 | WO2002022773A3 Bioreactor |
| 10/09/2003 | US20030190742 Fermentation systems, methods and apparatus |
| 10/09/2003 | DE20207625U1 Dried microbial cultures useful for starting microbiological processes in water (e.g. garden ponds or aquaria), earth sediments and/or slurries,formed into shaped bodies (e.g. tablets) for ease of storage and transport |
| 10/08/2003 | EP1349813A1 A process and apparatus for submerged biodepuration of effluents disposed of in the sea |
| 10/08/2003 | EP1349641A1 Device and method for cleaning a fluid, such as water |
| 10/08/2003 | CN2578324Y Anaerobic membrane biological reactor |
| 10/08/2003 | CN2578323Y Unitary membrane-mud wastewater treating apparatus |
| 10/08/2003 | CN2578322Y Assembled anaerobic bioreactor |
| 10/08/2003 | CN2578321Y Composite circulation oxidizing reactor |
| 10/08/2003 | CN2578320Y Hydrolystic aerobic treating apparatus with internal circulation |
| 10/08/2003 | CN1446777A Organic fertilizer prepared by using sewage sludge |
| 10/08/2003 | CN1446758A Waste water high-grade treatment system adopting intermittent aeration, contact oxidation and biological assorption |
| 10/08/2003 | CN1446757A Method for purifying pollutant in water by using biological activity carbon-catalysis or activated carbon and oxidation of ozone |
| 10/08/2003 | CN1446618A External pressure pillar type hollow fiber films subassemblies capable of air blast |
| 10/07/2003 | US6630071 Process for the treatment of waste water containing heavy metals |
| 10/07/2003 | US6630067 Methods and apparatus for biological treatment of aqueous waste |
| 10/02/2003 | WO2003031348A3 Process for recovering and recycling compounds contained in effluents of delignification and bleaching processes in pulp mills |
| 10/02/2003 | WO2002072001A3 Method and device for gassing liquids |
| 10/02/2003 | US20030183572 Treatment of effluent with activated sludge in suspension, for the removal of nitrogen and phosphorus and for simultaneous sludge stabilisation. An activated chamber (5, 6) is provided with a fermentation zone (5), a denitrification zone (6) and |
| 10/01/2003 | EP1347943A1 Waste treatment process |
| 10/01/2003 | EP1347942A1 Device for treatment of wastewater |
| 10/01/2003 | EP0881195B1 Method and apparatus for biological treatment of waste organic liquid |
| 10/01/2003 | CN1446128A Compositions inchuding ammonia oxidizing bacteria to increase production of nitric oxide and nitric oxide precursors and methods of using same |
| 10/01/2003 | CN1445367A Biofilm carrier with improved specific surfacial area, bio-affinity and flowability |
| 10/01/2003 | CN1445182A Sludge treatment method using sludge pretreatment and film bioreactor |
| 10/01/2003 | CN1445176A Method for handling waste water of domestic animals and poultry by using mineralization garbage |
| 10/01/2003 | CN1122643C Treatment method for waste water |
| 09/30/2003 | US6627428 Incubating pentachlorophenol acclimated Shewanella with iron(III) citrate to produce Fe(II) and hydrogen peroxide; hydroxyl radicals; oxidation; bioremediation |
| 09/30/2003 | US6627083 Light expanded clay aggregates for phosphorous removal |
| 09/30/2003 | US6627082 Such as for removing biofilm from wastewater treatment membranes |
| 09/30/2003 | US6626425 Air into waste water |
| 09/25/2003 | WO2003078335A1 Process for sludge treatment using sludge pretreatment and membrane bioreactor |
| 09/25/2003 | WO2003035558A3 Fixed-film anaerobic digestion of flushed manure |
| 09/25/2003 | WO2003033420A9 Soil water purifier |
| 09/25/2003 | US20030178364 Comprises return pipe for sending sludge back to pretreatment reactors (for ozone/thermal/alkaline treatment) |
| 09/25/2003 | US20030178363 Bioreactor carrier, process for producing the carrier and method for using the same |
| 09/24/2003 | EP1346956A1 Process for sludge treatment using sludge pretreatment and membrane bioreactor |
| 09/24/2003 | EP1345858A1 Enhanced biogas production from nitrogen bearing feed stocks |
| 09/24/2003 | EP1345857A1 Reclaiming water and usable brine concentrate from domestic sewage |
| 09/24/2003 | CN2575092Y Ultrawave sludge pre-dewatering machine |
| 09/24/2003 | CN1444545A Bacterial composition, method and installation for pre-treating effluents loaded with organic fatty substances |
| 09/24/2003 | CN1443714A Stereo-thin-layer wet land technique for treating eutrophication water and its filtering block |
| 09/24/2003 | CN1121984C Waste water treating apparatus |
| 09/23/2003 | US6623649 Using acid catalyst |
| 09/23/2003 | US6623643 Using a degradation-enhancing reactant, e.g. an oxidizing agent, to increase the rate of degradation of polymers such as polyvinyl alcohol to prevent problems in the sewer system with their disposal |
| 09/23/2003 | US6623642 Dissolved ammonium oxidized to nitrate to acidify solution; metal salt added; reacts with phosphorous; resultant metal phosphate precipitates in acidic environment and is removed |
| 09/23/2003 | US6623641 Wastewater treatment process for nitrogen-deficient feed in controlled environment |
| 09/23/2003 | US6623640 Off gas and liquid circulation provides a downward directed flow around parallel plates and is directed to coagulation areas and gas is directed up through a gas outlet to avoid turbulence |
| 09/23/2003 | US6623154 Differential injector |
| 09/18/2003 | WO2003076351A1 Method for treatment of sewage plant sludges by a fungal process |
| 09/18/2003 | WO2003076350A1 Device for the treatment of liquids and device for the at least partial removal of growth from a packing medium |
| 09/18/2003 | WO2003076349A2 Plant and method for the disposal of zootechnical sewage |
| 09/18/2003 | WO2003076345A1 Biological digestion of waste fluids with particles communiting step |
| 09/18/2003 | WO2003076340A2 Method and installation for producing ultrapure water |
| 09/18/2003 | WO2002064508A3 Wastewater treatment system and method of control |
| 09/18/2003 | US20030175948 Concurrent agitation, supplying oxygen; generation of methane |
| 09/18/2003 | US20030175942 Gas-enhanced sequencing batch reactors; biodegradation anaerobic, aerobic processes |
| 09/18/2003 | US20030175851 Analyzing activity of microorganisms associated with waste water treatment |
| 09/18/2003 | US20030173784 Disposal of waste fluids |
| 09/18/2003 | US20030173293 Method for subsurface aerated treatment of wastewater |
| 09/18/2003 | US20030173292 Waste treatment with control over biological solids |
| 09/18/2003 | US20030173291 Digester apparatus for converting wet carbonaceous biomass materials to biogas comprises digestion unit operating at controlled temperature and having concentrator and pressure swing components each containing anaerobic bacteria |
| 09/18/2003 | US20030173275 Method and apparatus for treatment of wastewater employing membrane bioreactors |
| 09/18/2003 | US20030173263 Waste treatment process |
| 09/18/2003 | CA2477130A1 Biological digestion of waste fluids with particle communition step |