| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 12/09/2004 | US20040245173 bio-film of nitrifying bacteria on an inclined surface moving through waste water, pumping air bubbles over the surface; sunlight free |
| 12/09/2004 | US20040245166 Water filter media |
| 12/09/2004 | US20040244715 Aquaculture nitrogen waste removal |
| 12/09/2004 | DE20316725U1 Device for introducing a gas into a liquid e.g. in water treatment has a permeable membrane together with an injector embedded with an oligodynamically- acting material, especially a metal-releasing bactericide or microbiocide |
| 12/09/2004 | CA2524454A1 Enzyme with xylanase activity at acidic ph |
| 12/08/2004 | EP1484288A2 Process for purifying waste water that is polluted with MTBE or TAME by using the strain Mycobacterium Austroafricanum I-2562, which is fixed on a mineral support comprising perlite |
| 12/08/2004 | EP1484287A1 Hybrid biological membrane reactor for the treatment of urban and industrial waste water |
| 12/08/2004 | EP1484286A1 Apparatus and process for the anaerobic treatment of waste water |
| 12/08/2004 | EP1483215A1 Method for treatment of sewage plant sludges by a fungal process |
| 12/08/2004 | EP1483214A1 Device for the treatment of liquids and device for the at least partial removal of growth from a packing medium |
| 12/08/2004 | EP1483213A1 Biomass concentrator reactor |
| 12/08/2004 | EP1483211A1 Biological digestion of waste fluids with particles communiting step |
| 12/08/2004 | CN2661965Y Impeller of slow speed diving propeller |
| 12/08/2004 | CN2661682Y Surface aeration type integrative oxidation ditch |
| 12/08/2004 | CN2661681Y Positive pressure biochemical water film filter |
| 12/08/2004 | CN2661680Y Sewage ecological treatment arrangement for artificial wetland |
| 12/08/2004 | CN1552642A Preparing method for sod of tape grass |
| 12/08/2004 | CN1552641A System and method for treating runway pollution by aquatic floating plant |
| 12/08/2004 | CN1552640A Black liquor treating and using method for alkaline pulp plant |
| 12/08/2004 | CN1178868C Sewage treating device |
| 12/08/2004 | CN1178866C Integrated anaerobic and aerobic deep aerating waste water biodenitrifying technology and apparatus |
| 12/07/2004 | US6828141 Method for purifying matter contaminated with halogenated organic compounds |
| 12/07/2004 | US6827861 Gas-gas-water treatment system for groundwater and soil remediation |
| 12/07/2004 | US6827855 Method of treating sewage |
| 12/07/2004 | US6827850 Diffusion bar aerobic treatment plant |
| 12/05/2004 | WO2004108173A1 Methods of producing, marketing and using odor control compositions |
| 12/02/2004 | WO2004103536A1 Membrane module elements |
| 12/02/2004 | WO2004103535A1 Composite fluid separation membrane module |
| 12/02/2004 | WO2004103511A2 Submerged ammonia removal system and method |
| 12/02/2004 | WO2004076356A3 Wastewater trickle tower biomedia with casing |
| 12/02/2004 | US20040238441 Apparatus and method for treating organic waste water |
| 12/02/2004 | US20040237859 Method for processing waste products and corresponding processing plant |
| 12/02/2004 | DE10322119A1 Process and assembly to accelerate the generation of biogas from organic wastes by exposure of nutrients to electronic fluctuating frequency emitters |
| 12/01/2004 | EP1481948A2 Coupling of a sewer treatment station -STS-to a treatment plant for the flocculation and flotation of water streams |
| 12/01/2004 | EP1480513A1 Integrated closed loop system for industrial water purification |
| 12/01/2004 | CN2659883Y Domestic sewage treatment plant |
| 12/01/2004 | CN2659882Y High efficiency jet aerator |
| 12/01/2004 | CN2659881Y Self-aerating biological oxidizing ditch |
| 12/01/2004 | CN2659867Y Film-active carbon integrated water purifier |
| 12/01/2004 | CN1551806A Method for processing waste products and corresponding processing plant |
| 12/01/2004 | CN1177769C Apparatus and method for controlling liquor circulation flow in long vertical shaft bioreactors |
| 11/30/2004 | US6824695 System and method for water purification |
| 11/30/2004 | US6824691 Process for treating liquid manure |
| 11/30/2004 | US6824685 Solid, liquid separation tank; filtration |
| 11/30/2004 | US6824684 Action by a foaming tank; energy saving; toxic chemical substances such as dimethylformamide completely decomposed |
| 11/30/2004 | US6824683 Applicable to sewage containing greasetrap garbage; main-taining suspension at acidic conditions for extended period effecting separation |
| 11/30/2004 | US6824124 Aerator and mixer |
| 11/30/2004 | CA2282172C Fluidized radial flow bioreactor utilizing pellet media |
| 11/25/2004 | WO2004101449A2 Method of degrading tbp using a photosynthetic bacterial strain |
| 11/25/2004 | WO2004101447A1 A method of induced froth (foam) formation process and natural purification |
| 11/25/2004 | WO2004085316A3 Two phase anaerobic organic matter treatment and system |
| 11/25/2004 | US20040232070 Device for biological fluid treatment |
| 11/25/2004 | US20040232069 Apparatus and method for biological treatment of environmental contaminants and waste |
| 11/25/2004 | US20040232068 Formation of composite materials with expandable matter |
| 11/25/2004 | CA2525630A1 A method of induced froth (foam) formation process and natural purification |
| 11/25/2004 | CA2525314A1 Method of degrading tbp using a photosynthetic bacterial strain |
| 11/24/2004 | EP1478600A2 Process for producing energy, feed material and fertilizer products from manure |
| 11/24/2004 | CN1548406A Organic waste treatment apparatus and method for recycling as a liquid fertilizer |
| 11/24/2004 | CN1548405A Method for producing efficient active biological organic fertilizer with excrement and organic garbage |
| 11/24/2004 | CN1548386A Method of utilizing microbe to eliminate and recover dye |
| 11/24/2004 | CN1548385A Making process of spherical porous coaly biological filtering material for processing waste water |
| 11/24/2004 | CN1548384A Aerator and advanced waste water treatment method using the same |
| 11/24/2004 | CN1548382A Method of treating waste water containing heavy metal with waste sludge as carrier |
| 11/24/2004 | CN1177035C Bacterial consortium EBC1000 and method using bacterial consortium EBC 1000 for remedying biologically recalcitrant toxic chemicals contained in industrial waste water etc. |
| 11/24/2004 | CN1177034C Mixed microbial population designated as JSB98.0 capable of degrading fecal material of animals |
| 11/24/2004 | CN1176861C Ecological food chain control method of flea-like zooplankton bred in water source of drinking water |
| 11/24/2004 | CN1176860C Anaerobic-facultative-aerobic integrated sewage treatment method and reuse apparatus |
| 11/24/2004 | CN1176760C Livestock and poultry dung resource treating method |
| 11/23/2004 | US6821782 Selecting an explant of living tissue from the plant and cultivating the tissue on a primary medium to produce totipotent tissue |
| 11/23/2004 | US6821426 Removing biodegradable materials; higher throughput while employing bioreactor containing biosuspended microorganisms and submerged eductor |
| 11/23/2004 | US6821425 Gravity fluid flow; water pollution control |
| 11/23/2004 | US6821424 Used in conjunction with septic tank; maximizing air contact; minimizing biological oxygen demand and tss. total suspended solids |
| 11/23/2004 | US6821423 Using percolating filter containing microfilter feeder organisms |
| 11/23/2004 | US6821420 Apparatus and method for cleaning membrane filtration modules |
| 11/23/2004 | US6821415 Self-adjusting fluid surface skimmer and fluid treatment system using same |
| 11/18/2004 | WO2004099090A1 Method and system for the filtration of wastewater |
| 11/18/2004 | WO2004099084A2 Processe and apparatus for microbial filtration and bacterial injection for one or more environmental contaminants |
| 11/18/2004 | WO2004099083A2 A system and method for treating wastewater using coir filter |
| 11/18/2004 | US20040229343 Supported biofilm apparatus and process |
| 11/18/2004 | US20040226890 Method for recovering ionic products |
| 11/18/2004 | US20040226886 Fluid separation membrane module |
| 11/18/2004 | US20040226883 porous, hollow tube on support |
| 11/18/2004 | US20040226882 upgrading an existing lagoon system; baffle creates a complete mix zone with an aeration system and bioconcentration modules; solids are concentrated in the modules and drop through their open bottoms where they are recirculated and mixed by the aeration system |
| 11/18/2004 | US20040226881 Method of treating photographic waste liquid |
| 11/18/2004 | CA2524705A1 A system and method for treating wastewater using coir filter |
| 11/17/2004 | EP1477458A2 Method of treating photographic waste liquid |
| 11/17/2004 | EP1476403A1 Aerobic biomass granules for waste water treatment |
| 11/17/2004 | EP1476400A1 Microbubbles of oxygen |
| 11/17/2004 | EP1392606B1 Method for purification of water coming from a desulphuration kerosene plant |
| 11/17/2004 | CN1547558A 厌氧处理装置 Anaerobic treatment device |
| 11/17/2004 | CN1546796A Sewage treatment method for construction wetland of ditch and river bank |
| 11/17/2004 | CN1546400A Decomposed leaven for the treatment and use of industrial waste liquid and waste residue and method for preparing the same |
| 11/17/2004 | CN1546399A Device for inhibiting propagation of algaes |
| 11/17/2004 | CN1546398A Bioactive filtering material for water treatment and baking technology thereof |
| 11/17/2004 | CN1546396A Highly efficient denitrogenation method for aerobe |
| 11/17/2004 | CN1546392A Method for preparing composite silicate bacterium flocculant |
| 11/17/2004 | CN1545861A Method for cultivating curly pondweed embryo and curly pondweed karren tissue |
| 11/17/2004 | CN1176206C Pseudomonads GT 241-1 for degradating chloro-aromatic compound and aromatic compound and its application |
| 11/16/2004 | US6818581 Method for water denitrification |
| 11/16/2004 | US6818211 Gram-positive fatty acid degrader |