| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 02/26/2003 | CN1102129C Intensified ecological self-cleaning method for sewage in rivers, channels and ditches |
| 02/26/2003 | CN1102127C Aeration tank of organic waste liquor and aeration apparatus using the tank |
| 02/25/2003 | US6524834 Protein capable of hydrolyzing organophosphorous acetylcholinesterase inhibitors for use as poison antedote |
| 02/25/2003 | US6524486 Separating microalgae from water without rupturing cells; flocculation, flotation and dehydration, where the flotation column has adjustable height to enable the overflow unit to align with the foam layer for efficient removal |
| 02/25/2003 | US6524481 Apparatus and method for cleaning membrane filtration modules |
| 02/25/2003 | CA2253426C Biological treatment of wastewater |
| 02/20/2003 | WO2002028780A9 Apparatus and method for wastewater treatment with enhanced solids reduction (esr) |
| 02/20/2003 | US20030034302 Insecticide delivery apparatus and associated methods |
| 02/20/2003 | US20030034300 Plug flow anaerobic digester |
| 02/20/2003 | US20030034299 Coagulation using calcium carbonate; filtration; ion exchanging |
| 02/19/2003 | CN1398198A Air diffuser and flushing method thereof |
| 02/19/2003 | CN1397505A Aerating mixer |
| 02/19/2003 | CN1397504A Pressure bioreactor and pressure system for treating sewage |
| 02/18/2003 | US6521444 Microorganism and method for environmental purification using the same |
| 02/18/2003 | US6521365 Stackless waste material renewal process utilizing oxygen enriched gas |
| 02/18/2003 | US6521129 Process for producing energy, feed material and fertilizer products from manure |
| 02/18/2003 | US6521128 Treatment of water containing carbonaceous solids |
| 02/18/2003 | CA2267690C Process for reducing production of biomass during activated sludge treatment of pulp and paper mill effluents |
| 02/13/2003 | WO2003011774A1 Aerator for bodies of water |
| 02/13/2003 | WO2003011772A1 A process for the removal of heavy metals by actinomycete |
| 02/13/2003 | WO2003011771A1 Plug-flow anaerobic digester |
| 02/13/2003 | WO2003011770A1 Enhancement of oxygen transfer from diffused gas aerators |
| 02/13/2003 | WO2003011487A1 Remediation of metal contaminants with hydrocarbon-utilizing bacteria |
| 02/13/2003 | WO2003011442A1 Aerator plate for water aeration |
| 02/13/2003 | US20030029800 Ultrapurification method and sampler |
| 02/13/2003 | US20030029794 Method and device for purifying untreated water |
| 02/13/2003 | US20030029793 Apparatus and method for biological treatment of environmental contaminants and waste |
| 02/13/2003 | US20030029792 Generating microbubbles comprising a gas, coated with a thin layer of liquid compounds suitable for promoting biological degradation of organic compounds |
| 02/13/2003 | US20030029783 Aerobic treatment plant with filter pipe |
| 02/13/2003 | DE20116578U1 Pre-fabricated waste water treatment assembly for automotive washing station combines processes within single structure |
| 02/13/2003 | CA2472058A1 Plug-flow anaerobic digester |
| 02/12/2003 | EP1282688A1 Ammonia-oxidizing bacteria |
| 02/12/2003 | EP1137467B1 Device for withdrawing clarified water from clarification plants with a discontinuous operation |
| 02/12/2003 | CN2535405Y Integrated sewage treatment apparatus by biological membrane method |
| 02/12/2003 | CN2535404Y Biofiltering reactor |
| 02/12/2003 | CN1396890A Water treatment unit |
| 02/12/2003 | CN1396840A Multistage immersion type membrane separator and high-conentration wastewater treatment facility using same |
| 02/12/2003 | CN1396123A Preparing process and application of composite biologic water cleaner containing living bacteria |
| 02/11/2003 | US6517724 Air charged backwashing bioclarifier |
| 02/11/2003 | US6517723 Method and apparatus for treating wastewater using membrane filters |
| 02/11/2003 | US6517329 Switching means supplies alternating current to both first and second coils to supply aeration air into septic tank, and temporarily supplies, in response to control signal from timer, current to only one coil to supply reverse cleaning air |
| 02/11/2003 | CA2111081C Use of metallic peroxides in bioremediation |
| 02/06/2003 | WO2003010097A1 Methods for treating effluents and devices therefor |
| 02/06/2003 | WO2003009919A2 Method and apparatus for preparing pure water |
| 02/06/2003 | WO2002034680A9 Reclaiming water and usable brine concentrate from domestic sewage |
| 02/06/2003 | US20030024875 Bioreactor for treating wastewater |
| 02/06/2003 | US20030024874 System and method for removing pollutants from water |
| 02/05/2003 | WO2002014227A1 Method for purifying waste water, and purification plant for carrying out said method |
| 02/05/2003 | EP1281678A2 Process for the treatment of biological sludge generated by the purification of wastewater |
| 02/05/2003 | EP1281423A1 Method and device for absorbing hydrophobic material from a fluid, water purification system and washing device |
| 02/05/2003 | EP1280737A1 Method for the biological anaerobic treatment and reduction of excess sludges |
| 02/05/2003 | EP0952886B1 Improved gas-liquid vortex mixer |
| 02/05/2003 | CN2534177Y Step baffling sewage treatment tank |
| 02/05/2003 | CN2534176Y Integral biological filtering pool |
| 02/05/2003 | CN2534175Y Large horizontal biomembrane filter |
| 02/05/2003 | CN1394819A Biological active filling material for treating water and controlling sewage and waste water |
| 02/04/2003 | US6514411 Thickening biosolids solution, mixing portion of solution with oxygen-containing gas, injecting mixture of oxygen containing gas and biosolids solution into reactor at flow rate which introduces sufficient oxygen for aerobic environment |
| 02/04/2003 | US6514410 Pollution control apparatus having vessels and geotextile coverings for biodegradation and aeration of wastes |
| 01/30/2003 | WO2003008434A2 Strains of bacteria destructive for hydrocarbon-containing compounds, surface-active agents and xenobiotics used for cleaning the hydrosphere |
| 01/30/2003 | WO2003008345A1 Method of breaking down organic compounds present in industrial effluents using enzymatic reactors and the application thereof in the discoloration of industrial dyes |
| 01/30/2003 | WO2003008344A1 Waste water reservoir, especially activated sludge reservoir, and method for the operation thereof |
| 01/30/2003 | US20030019818 Adding biocidal agent to system or assembly before sealing it for shipment or storage |
| 01/29/2003 | EP1278822A2 Device for material exchange and the cultivation of cells |
| 01/29/2003 | EP1278592A1 Differential injector |
| 01/29/2003 | EP1012120B1 Treatment of acidic water containing dissolved ferrous cations |
| 01/29/2003 | EP0888163A4 Odor control system |
| 01/29/2003 | CN2533122Y Membrane bioreaction device |
| 01/29/2003 | CN1393416A Process for treating sewage by controlling effective microbiocoenosis (CEM) |
| 01/29/2003 | CN1393415A Process for treating recovering water of crude oil |
| 01/29/2003 | CN1393414A Process for decolouring by co-metabolism of immobilized bionts |
| 01/29/2003 | CN1393412A Process for treating organic sewage containing radical of sulfuric acid |
| 01/29/2003 | CN1393166A Process for preparing microcrystal cellulose of coconut |
| 01/29/2003 | CN1393165A Process for preparing microcrystal cellulose of coconut |
| 01/29/2003 | CN1100010C Urban underground pipeline type sewage treatment method |
| 01/28/2003 | US6511055 Apparatus for securing water aerating devices to air supply conduits |
| 01/23/2003 | WO2003006629A1 Culturing method and device for photosynthetic microbes |
| 01/23/2003 | WO2003006387A2 The method and system of generating methane and electrical energy and thermal |
| 01/23/2003 | WO2003006386A1 Artificial phytopurification system |
| 01/23/2003 | WO2003006385A2 Textile material for using in a biological sewage treatment installation |
| 01/23/2003 | WO2002060552A3 Method for recovering a disposal trench with a biomat slime, and method for operating a waste treatment vessel |
| 01/23/2003 | US20030015469 Biological treatment process for the removal of BOD and nutrients form domestic, industrial and animal wastes, centering around two bioreactors system in series |
| 01/23/2003 | US20030015468 Shielding the water from sunlight sufficiently to kill phytoplankton therein, the lysis thereof releasing nutrients; and sequestering the released nutrients. |
| 01/23/2003 | US20030015467 Microbiological water filter |
| 01/23/2003 | CA2452397A1 The method and system of generating methane and electrical energy and thermal |
| 01/22/2003 | EP1277706A2 Aerator for aerobic and anaerobic water treatment |
| 01/22/2003 | EP1277705A1 Apparatus for purifying municipal or industrial wastewaters |
| 01/22/2003 | EP1277019A1 Torsion generator |
| 01/22/2003 | EP1015388B1 Method for inhibiting biogenic sulfide generation |
| 01/22/2003 | CN2532075Y Waste water utilized multi-function water-saving device for kitchen washing basin |
| 01/22/2003 | CN1392108A Ecological treating method of waste water in wet land for residential area |
| 01/22/2003 | CN1391997A Water saving garbage treating method and system without waste water effluent for residential area |
| 01/22/2003 | CN1099386C Method for treating water |
| 01/22/2003 | CN1099384C Process and device for aerobic treatment of waste water |
| 01/22/2003 | CN1099383C Effluent treatment system |
| 01/22/2003 | CN1099382C Waste water treatment method and device |
| 01/18/2003 | CA2353216A1 Containerized polluted-water treatment apparatus |
| 01/16/2003 | WO2003004423A1 Method of anaerobically treating organic material and anaerobic treatment apparatus |
| 01/16/2003 | US20030011082 Aerator |
| 01/16/2003 | US20030010724 Waste water aeration apparatus and method |
| 01/16/2003 | US20030010713 Wastewater management system |