| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 05/22/2003 | US20030094412 Septic system treatment process |
| 05/22/2003 | US20030094411 Nitrification by aerobic bacteria and denitrification by anaerobic bacteria in an apparatus by providing an elongated, closed water channel. |
| 05/22/2003 | US20030094410 Enhanced biogas production from nitrogen bearing feed stocks |
| 05/22/2003 | DE19934409C2 Verfahren zur Entfernung von Ammonium A process for the removal of ammonium |
| 05/22/2003 | CA2467771A1 Integrated hydroponic and wetland wastewater treatment systems and associated methods |
| 05/22/2003 | CA2461395A1 Integrated anaerobic digester system |
| 05/21/2003 | EP1311459A1 Waste treatment process |
| 05/21/2003 | EP1311339A1 A device for supplying oxygen into a volume of water |
| 05/21/2003 | EP0891301B1 Waste water treatment apparatus |
| 05/21/2003 | CN2551646Y Anaerobic and aerobic suspension filling |
| 05/21/2003 | CN2551645Y Improved biological contacting oxidation water treater |
| 05/21/2003 | CN1418828A Method for treating waste water |
| 05/21/2003 | CN1418827A Dynamic micro-foamed bio-packings, and equipment with same |
| 05/20/2003 | US6566119 Propagation of preferential microorganism in bioreactor; generate nutrient broth in bioreactor, inoculate with microorganism, propagate in agitated broth, stop mixing and allow granules to settle, drain reactor and recover granules |
| 05/20/2003 | US6565755 Sludge density measurement for controlling a sludge treatment stage |
| 05/20/2003 | US6565751 Bioreactor carrier, process for producing the carrier and method for using the same |
| 05/20/2003 | US6565750 Trickling filter system for biological nutrient removal |
| 05/20/2003 | US6565070 Reactor |
| 05/15/2003 | WO2003040047A1 Incubation treatment of sludge for pathogen reduction prior to digestion |
| 05/15/2003 | WO2002096806A3 Method, apparatus and biomass support element for biological wastewater treatment |
| 05/15/2003 | US20030092167 Method and apparatus for decomposition of oil |
| 05/15/2003 | US20030092020 Optimizing waste treatment system; obtain wastewater sample, recover solids, isolate nucleotide sequences from solids, amplify sequences, evaluate waste treatment process for removal of impurities |
| 05/15/2003 | DE20302765U1 Small-scale sequencing batch reactor for waste water treatment is delivered as assembled unit with single air line from external compressor |
| 05/14/2003 | EP1310461A1 Method for treating organic waste water |
| 05/14/2003 | EP1310299A2 Structured packing material and biological cleaners provided with such a structured packing material |
| 05/14/2003 | EP1309518A1 Waste water treatment method using microorganisms |
| 05/14/2003 | EP1309517A1 Method for purifying waste water, and purification plant for carrying out said method |
| 05/14/2003 | EP1200362B1 Method and device for the purification of wastewaters |
| 05/14/2003 | EP1165449B1 Mixing, aeration or oxygenating method and apparatus |
| 05/14/2003 | EP1144319B1 Sludge density measurement for controlling a sludge treatment stage |
| 05/14/2003 | EP1123259B1 Improvements to waste water treatment using activated sludge process |
| 05/14/2003 | CN2550360Y Integrated device for ammonia nitrogen waste water of chemical fertilizer |
| 05/14/2003 | CN2550359Y Powerless type decanter |
| 05/14/2003 | CN1417137A Foaming aerating disc |
| 05/13/2003 | US6562237 Biological nutrient removal using the olaopa process |
| 05/13/2003 | US6562236 Sewage treatment system |
| 05/13/2003 | US6562235 Shielding electron acceptors that interfere with beneficial anaerobic reactions in the contaminated groundwater zone by diverting flow |
| 05/13/2003 | CA2292113C Enhanced gas dissolution |
| 05/08/2003 | WO2003037805A1 Small capacity waste water treatment plant |
| 05/08/2003 | US20030085172 Wastewater treatment method and apparatus |
| 05/08/2003 | US20030085171 Biological treatment process |
| 05/07/2003 | EP1307735A2 Method and equipment for monitoring syntrophic relations in a biological process fluid |
| 05/07/2003 | EP1307410A1 Bacterial composition, method and installation for pre-treating effluents loaded with organic fatty substances |
| 05/07/2003 | EP1307409A1 Activated sludge method and device for the treatment of effluent with nitrogen and phosphorus removal |
| 05/07/2003 | EP1307405A1 Method and device for treating waste water from launderettes |
| 05/07/2003 | EP1307301A2 Method and device for in-situ groundwater decontamination |
| 05/07/2003 | EP1140708B1 A reactor and process for biologically treating sewage |
| 05/07/2003 | EP1021378B1 Apparatus and process for sewage and wastewater treatment |
| 05/07/2003 | CN1416408A Method and appts. for reducing excessive mud |
| 05/07/2003 | CN1416407A Appts. and method for purifying wastewater |
| 05/07/2003 | CN1416406A Method and device for effluent treatment |
| 05/07/2003 | CN1415562A Improved technique of aeration and oxygenation for sewage |
| 05/07/2003 | CN1415560A Water purifying plant for buildings |
| 05/07/2003 | CN1107655C Coating layer compsn. for enhancing bioremediation |
| 05/06/2003 | US6558555 A portion of the effluent is recycled back through a sorptive media |
| 05/06/2003 | US6558549 Membrane module for gas transfer and membrane supported biofilm process |
| 05/06/2003 | US6558548 Lagoon covers providing multi-stage waste treatment |
| 05/06/2003 | US6558081 Composite particles and methods for their application and implementation |
| 05/06/2003 | US6557835 Apparatus for mixing and aerating liquid-solid slurries |
| 05/01/2003 | WO2003035823A1 A process for the anaerobic treatment of flowable and nonflowable organic waste |
| 05/01/2003 | WO2003035561A2 Sustainable process for the treatment and detoxification of liquid waste |
| 05/01/2003 | WO2003035560A1 Device for treatment of wastewater |
| 05/01/2003 | WO2003035559A1 In-pipe wastewater treatment system |
| 05/01/2003 | WO2003035558A2 Fixed-film anaerobic digestion of flushed manure |
| 05/01/2003 | WO2003035554A2 Improved methods, processes and apparatus for bio-solids recycling and the product of bio-solids from such methods, processes and apparatus |
| 05/01/2003 | WO2003034817A1 Process and means for the treatment of water in an aquaculture system |
| 05/01/2003 | US20030080055 Odor reduction system for waste holding tanks |
| 05/01/2003 | US20030080054 Treating refractory wastewater or raw water in a floated biological treatment apparatus including a reactor, reactor filled with porous compressible carriers the reactor volume, carrier adhered with microorganisms and in floating state |
| 05/01/2003 | US20030080053 Method for treating waste-activated sludge using elecroporation |
| 05/01/2003 | US20030080052 System and method for the treatment of soot-laden water |
| 05/01/2003 | CA2462759A1 Process and means for the treatment of water in an aquaculture system |
| 04/30/2003 | DE20301878U1 Sewage treatment has a settling pond, which collects rain water, to take the effluent inflow for aeration, to be passed on to a membrane stage with micro-filters and a biological cleaning action |
| 04/30/2003 | CN2547726Y Device for treating feces, kitchen sewage, and domestic sewage |
| 04/30/2003 | CN2547722Y Community domestic sewage treating and reusing apparatus |
| 04/30/2003 | CN1413926A Sewage treatment process and its system |
| 04/30/2003 | CN1413925A Batch sewage treatment device using biofiltering method and its sewage treatment method |
| 04/30/2003 | CN1413924A Automatic deaerating method of biofiter |
| 04/30/2003 | CN1413916A Air-floated biological treatment process and equipment |
| 04/30/2003 | CN1106879C Composite spiral filling |
| 04/30/2003 | CN1106870C Biodegradation of metal cyanides |
| 04/29/2003 | US6555359 Process for the anaerobic treatment of flowable and nonflowable organic waste |
| 04/29/2003 | US6555350 Providing an aqueous slurry of the biomass material, heating in presence of oxygen; partial hydrolysis of cellulose and hemicellulose; ethanol fermentation; separating the ethanol; subjecting wastewater effluent to a treatment |
| 04/29/2003 | US6555002 Apparatus and method for wastewater treatment with enhanced solids reduction (ESR) |
| 04/29/2003 | US6554998 Apparatus for lagoon remediation |
| 04/29/2003 | US6554996 Wastewater treatment system |
| 04/29/2003 | US6554960 Integrated system and method for purifying water, producing pulp and paper, and improving soil quality |
| 04/29/2003 | US6554259 High dissolved oxygen mixer-digester |
| 04/24/2003 | WO2003033684A1 Variovorax strains capable of degrading methyl tert-butyl ether and their use |
| 04/24/2003 | WO2003033419A2 Device and method for biologically treating waste water |
| 04/24/2003 | WO2003033418A1 Organic waste treatment |
| 04/24/2003 | WO2003033415A1 Process for disposing biocide-containing cooling water |
| 04/24/2003 | WO2003033411A1 Improvements in and relating to fluid bed expansion and fluidisation |
| 04/24/2003 | WO2003033123A1 An assembly for circulating water in a waste water tank |
| 04/24/2003 | WO2003032718A2 Anaerobic ammonium oxidation for water treatment in recirculating aquaculture |
| 04/24/2003 | US20030075504 For removing fouling materials from surfaces of porous hollow fiber membranes; for gases from a venturi, jet, or bioreactors |
| 04/24/2003 | US20030075501 Fixed-film anaerobic digestion of flushed manure |
| 04/24/2003 | DE20121768U1 Dispensing nozzle for dispensing fluids in bead form in automated dispensing system has, at exit port, internal wall surface which alternates in distance from axis between axis proximate positions and axis distal positions |
| 04/24/2003 | CA2503033A1 Anaerobic ammonium oxidation for water treatment in recirculating aquaculture |
| 04/24/2003 | CA2500843A1 Improvements in and relating to fluid bed expansion and fluidisation |
| 04/23/2003 | EP1165447A4 Process for the removal of suspended and other material from waste water |