| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 01/05/2006 | US20060000770 Purifying the wastewater with fixed biological cultures from which excess sludge is extracted intermittently during phases of washing; biological activated sludge treatment; reduced sludge production (RPB), selectively, by thermophilic enzymatic action or by partial oxidation by ozone |
| 01/05/2006 | US20060000769 Mixing a portion of waste stream with activated bacteria sludge, controlled and create specialized population profiles, returning a fraction of biological population to the treatment vessel; solubilizing and precipitating phosphate to create phosphate particles; biodegration, pollution control |
| 01/05/2006 | US20060000768 Mixing a portion of waste stream with activated bacteria sludge, controlled and create specialized population profiles, returning a fraction of biological population to the treatment vessel; monitoring ammonia, phosphorus, and nitrate; biodegration, pollution control; water treatment |
| 01/05/2006 | DE10359610B4 Bakterielles Einschrittverfahren zum TNT-Abbau Bacterial step methods for TNT degradation |
| 01/05/2006 | DE102005014371A1 Method for biological utilization of co-substrate (plant substance), useful in biological sewage- and mud treatment, comprises mincing the co-substrate in a macerator and providing into a mixing container, hydrolyzing and preacidifying |
| 01/05/2006 | CA2567616A1 Water treatment method using a biological reactor in which the velocity of air continuously injected into the reactor is regulated, and corresponding device |
| 01/04/2006 | EP1612191A1 Fully biological sewage treatment installation according to the SBR process with the reactor integrated in the preclarification tank |
| 01/04/2006 | EP1611059A1 Bacterial strain for removing total dissolved solids (tds) from tannery wastewaters |
| 01/04/2006 | CN2749879Y Aeration blower for sewage treatment |
| 01/04/2006 | CN2749878Y 曝气搅拌结构 Aeration agitation structure |
| 01/04/2006 | CN1717372A Sewage and sludge disposal equipment |
| 01/04/2006 | CN1715218A Process for removing nitrogen and phosphor using traditional waste water treatment process |
| 01/04/2006 | CN1715217A Process for removing nitrogen and phosphor from sewage capable of being built by separate periods |
| 01/04/2006 | CN1715213A Treating method and system for sectioned free surface flow artificial wet land |
| 01/04/2006 | CN1715212A Method for wave elimination in constructing beach area ecological water source ground |
| 01/04/2006 | CN1715211A Method for constructing ecological water source ground under high salt soil condition |
| 01/04/2006 | CN1715210A Algae treatment system and its use for eutrophic sea water |
| 01/04/2006 | CN1715209A Anaerobic mud bed reactor |
| 01/04/2006 | CN1715208A Diaphragm microporous aerator with over pressure protection |
| 01/04/2006 | CN1715198A Treating device for drain water and support body |
| 01/04/2006 | CN1234849C Enteric bacilli, preparation method and application |
| 01/04/2006 | CN1234757C Production method of filter material for water treatment and its product |
| 01/04/2006 | CN1234628C Multifunctional waste water treatment equipment |
| 01/04/2006 | CN1234627C Method for eliminating poison from microcapsule algal in water body |
| 01/04/2006 | CN1234626C Process for comprehensively treating high-concentration organic waste water |
| 01/04/2006 | CN1234623C Purifying method and purifying system for high concentration ammonia sewage water cultivating terrestrial grass plant |
| 01/04/2006 | CN1234622C Method and apparatus for improving treatment efficiency of up-flow type anaerobic sludge bed |
| 01/04/2006 | CN1234621C Double circulation two phase biological nitrogen and phosphorus eliminating technology |
| 01/03/2006 | US6982037 Immersion membrane for bioreactor; porous carrier; filtration module; controlling fluid flow; antifouling agents |
| 01/03/2006 | US6982036 treating wastewater adding a chemical to separate organic matter from the wastewater, decreasing phosphorous concentration, increasing the primary sludge, fermenting a portion of the primary sludge to form a volatile fatty acid rich liquor |
| 01/03/2006 | US6982035 Biphase orbicular biodigester |
| 01/03/2006 | US6982033 Aerobic treatment plant with filter pipe |
| 01/03/2006 | US6982032 Apparatus and method for biological treatment of environmental contaminants and waste |
| 01/03/2006 | CA2245166C Gas and liquid mixing apparatus and methods |
| 12/29/2005 | WO2005123611A1 Method and apparatus for continuously controlling denitrification in variable nitrogen loads in wastewater |
| 12/29/2005 | WO2005123610A1 In-situ groundwater nitrification and de-nitrification remediation system |
| 12/29/2005 | WO2005123609A1 Biological filter for treating waste effluents |
| 12/29/2005 | WO2005123603A1 Process for recovering the components of olive mill wastewater with membrane technologies |
| 12/29/2005 | WO2005123598A1 Water treatment apparatus |
| 12/29/2005 | WO2005123286A1 Method of biomass processing |
| 12/29/2005 | WO2005033010A3 Waste water treatment system and process |
| 12/29/2005 | US20050286978 Multi-planar gas recovery bioreactor |
| 12/29/2005 | US20050284811 Blowing air into liquid water-free space above a medium bed; supplying wastewater to the aerated medium bed; nitrification,then denitrification to occur; blowing a subsequent dose of air into the liquid water-free space |
| 12/29/2005 | US20050284810 Waste stream digestion method |
| 12/29/2005 | DE102004027398A1 Unit introducing liquid or gas into liquid, e.g. in wastewater treatment plant, includes supply discharging into section of pipe at angle, to set up helical flow with cavitation |
| 12/29/2005 | DE102004020837A1 Fungus mucor hiemalis, useful for the removal of heavy metals e.g. mercury, chromium, uranium and aluminum in ground-and surface water, purification plants, waste water and industrial water is new |
| 12/29/2005 | DE102004020836B3 Detection, removal, analysis and recovery of noble and other heavy metals in aqueous medium, useful for treating ground and surface water, sewage and industrial waste liquor, uses mixture of 3 strains of Mucor hiemalis fungus |
| 12/29/2005 | DE10154904B4 Verfahren zur kontrollierten mikrobiellen Laugung von Feststoffen, die mit Schwermetallen kontaminiert sind Method for the controlled microbial leaching of solids that are contaminated with heavy metals |
| 12/29/2005 | CA2578221A1 Biological filter for treating waste effluents |
| 12/28/2005 | EP1609764A1 Trickle filter of a sewage treatment plant |
| 12/28/2005 | EP1609763A1 Bioreactor |
| 12/28/2005 | EP1609762A1 Circulating sewage/waste water purification device |
| 12/28/2005 | EP1334075B1 Method and apparatus for biological wastewater treatment |
| 12/28/2005 | EP1272434B8 Method and device for producing ultrapure water |
| 12/28/2005 | CN2748452Y Biodegradable sewage treating equipment |
| 12/28/2005 | CN2748451Y Device for pouring microorganism strain into water body slurry |
| 12/28/2005 | CN1714154A Process for anaerobic oxidation of methane |
| 12/28/2005 | CN1712368A Bioreactor |
| 12/28/2005 | CN1712364A Landscape water treating system |
| 12/28/2005 | CN1712363A Nanometer aerating tube for preventing microbe from adhering |
| 12/28/2005 | CN1233572C Apparatus and method for treating wastewater using biolgical filtering medium |
| 12/28/2005 | CN1233571C Waste water treatment device using waste tyre carrier biological method |
| 12/28/2005 | CN1233564C Electrode holder and support for water drainage |
| 12/27/2005 | US6979398 System for the treatment of wastewater |
| 12/22/2005 | WO2005121031A1 Aeration method, aeration apparatus and aeration system |
| 12/22/2005 | WO2004099084A3 Processe and apparatus for microbial filtration and bacterial injection for one or more environmental contaminants |
| 12/22/2005 | US20050279705 Apparatus and methods for control of waste treatment processes |
| 12/22/2005 | US20050279704 Mixing a portion of waste stream with activated bacteria sludge, controlled and create specialized population profiles, returning a fraction of biological population to the treatment vessel; reduce disposal waste volume to reduce cost; biodegration, pollution control; water treatment |
| 12/22/2005 | US20050279703 retaining wastewater in a first vessel so as to maintain a persistent anoxic/anaerobic state and to permit suspended solids to settle to adjacent a bottom thereof, leaving a clearer water zone above the suspended solids |
| 12/22/2005 | US20050279702 Ammonium and nitrite in water are simultaneously denitrified by anaerobic ammonium oxidizing bacteria that have been acclimatized in the one anaerobic ammonium oxidation vessel and are provided as microbe-immobilized materials; bacteria are immobilized or entrapped |
| 12/22/2005 | DE202005016136U1 Purification apparatus for contaminated precipitation overflow or surface water comprises tank containing purification unit filled with chemically, physically or biologically active substrate between two perforated plates |
| 12/22/2005 | DE202005013382U1 Water treatment assembly for automotive washing station has water circulation system with oxygen injection |
| 12/22/2005 | DE10231217B4 Füll- und/oder Bewuchskörper aus Kunststoff Filling and / or vegetation body made of plastic |
| 12/22/2005 | CA2611719A1 Aeration method, aeration apparatus and aeration system |
| 12/21/2005 | EP1607374A1 Method for operating anaerobic ammonium oxidation vessel and anaerobic ammonium oxidation equipment |
| 12/21/2005 | EP1606393A1 Bacterial strain and a method of reducing total dissolved solids |
| 12/21/2005 | EP1606221A2 Method and apparatus for determining weight and biomass composition of a trickling filter |
| 12/21/2005 | EP0854843B1 Controlling wastewater treatment by monitoring oxygen utilisation rates |
| 12/21/2005 | CN2747217Y Aerobic-anaerobic waste water treatment reactor |
| 12/21/2005 | CN1711218A Waste activated sludge anaerobic contact waste stream treatment process |
| 12/21/2005 | CN1709807A Method for treating urban serious rice-nutrient water body |
| 12/21/2005 | CN1709806A Method for operating anaerobic ammonium oxidation vessel and anaerobic ammonium oxidation equipment |
| 12/21/2005 | CN1232458C Repair process for river bottom-mud while treating sewage |
| 12/21/2005 | CN1232456C Method and device for anaerobic purification of slurry which contains organic constituents |
| 12/21/2005 | CN1232454C Intermediate water reusing technology for treating domestic sewage by a combined system of expanding granular mud-bed anaerobic reactor-aerobic membrane biological reactor |
| 12/21/2005 | CN1232453C Method and apparatus for treating waste water by conducting solid-liquid separation to active mud |
| 12/21/2005 | CN1232452C Process for preparing bio-catalytic combined filling for biological fluidized bed |
| 12/21/2005 | CN1232451C Modularized sewage biological treatment apparatus and technology |
| 12/21/2005 | CN1232450C Method and apparatus for treating wastewater using membrane filters |
| 12/20/2005 | US6977038 Wastewater treatment station in shipping-container |
| 12/15/2005 | WO2005118826A1 Ethanol production from biological wastes |
| 12/15/2005 | WO2005118489A1 Advanced purification system utilizing closed water area by “void of water area” |
| 12/15/2005 | WO2005118488A1 Identification of calcium carbonate dissolving bacteria and its possible industrial utilization |
| 12/15/2005 | WO2005118171A1 Additive for use to restore polluted soil, groundwater or bottom sediment soil |
| 12/15/2005 | WO2004113231A3 Systems and methods for treating waste water |
| 12/15/2005 | US20050276662 System and method for decontamination of contaminated soil in the vadose zone and/or groundwater |
| 12/15/2005 | US20050274927 Bio degradation of oxyanions such as perchlorate on ion exchange resins |
| 12/15/2005 | US20050274670 Bioventing remediation system |
| 12/15/2005 | US20050274668 Method and apparatus for the treatment of particulate biodegradable organic waste |
| 12/15/2005 | US20050274657 Disinfectant system for use with residential aerobic wastewater treatment plants |