| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 05/08/2001 | US6228258 Sewage treatment system with chlorinator |
| 05/08/2001 | US6227525 Device for mixing and aerating liquids |
| 05/03/2001 | WO2001030706A1 Improved method and apparatus for water treatment |
| 05/03/2001 | WO2001030704A1 Improved process for water treatment |
| 05/02/2001 | EP1095912A1 Process for water treatment |
| 05/02/2001 | EP1094701A1 Apparatus for oxygenating water |
| 05/02/2001 | EP0906140B1 Biodegradation of metal cyanides |
| 05/02/2001 | EP0881923B1 BACTERIUM SPECIES COMAMONAS ACIDOVORANS P4a AND PROCESS FOR THE MICROBIAL DECONTAMINATION OF MATERIALS POLLUTED WITH PHENOXYACETIC ACID HERBICIDES |
| 05/02/2001 | CN2428482Y Combined suspension filler support |
| 05/02/2001 | CN2428481Y Falling water aeration and filtering tank for deironing and demanganesing of underground water |
| 05/02/2001 | CN2428480Y Circular-jet and fluidizing bed coupled biochemical apparatus |
| 05/02/2001 | CN1293587A Improvements to solid-liquid separating equipment in particular for biological purification of waste water |
| 05/02/2001 | CN1293158A Efficient mixing and oxygen-enriching equipment for treating sewage |
| 05/02/2001 | CN1293156A Fluidized biomembrane carrier and its making method |
| 05/02/2001 | CN1293155A Biological process for treating sewage containing complexones |
| 05/02/2001 | CN1293154A Process for removing ammoniacal nitrogen from sewage of coking |
| 05/01/2001 | US6224773 Wastewater treatment system with enhanced directional flow |
| 05/01/2001 | US6224772 Aeration in turbulent fluid flow; vacuum degassing; discharging in sedimentation tanks; waste water purification |
| 05/01/2001 | US6224769 Method and apparatus for treating organic waste water |
| 05/01/2001 | US6224756 Apparatus for treating organic raw water utilizing anaerobic microorganisms |
| 05/01/2001 | US6224752 Wastewater treatment system with operations control center |
| 05/01/2001 | US6224646 Treating waste with augmenting bacteria and enzymes prior to heating, the addition of bacteria and enzymes promotes anaerobic breakdown of waste in manure pit; biodegradation; recoverd potassium/phosphorus/nitrogen used as fertilizer |
| 05/01/2001 | US6224041 Splash plate structure for aerators |
| 04/26/2001 | WO2001029203A1 Trace element-containing carrier for growing microorganism |
| 04/26/2001 | WO2001028936A1 Device and method for introduction of oxygen into water by means of a membrane |
| 04/26/2001 | WO2001028935A1 Method and device for biologically purifying waste water |
| 04/26/2001 | WO2001028931A1 Waste treatment process |
| 04/26/2001 | WO2001028668A1 Aeration diffuser |
| 04/26/2001 | DE19950617A1 Waste water treatment and plant involves alternately charging sorbent substrate, degradation and/or metabolization of sorbed dissolved matter during aeration phase and washing with part of outflow |
| 04/26/2001 | CA2292338A1 Method and apparatus for cleaning and/or processing municipal and/or industrial waste water |
| 04/25/2001 | EP1094163A2 Multi-use shaft, small-scale water purification plant and water treatment method |
| 04/25/2001 | EP1093514A1 Non-macroporous inorganic support for bioremediation |
| 04/25/2001 | EP1093472A1 Methods for the removal of unwanted monomer amide compounds from polyamide preparations |
| 04/25/2001 | CN2427517Y Tubular changeable porous aerator |
| 04/25/2001 | CN2427516Y Net-sheet like elastic packings |
| 04/24/2001 | US6221253 Multistage sedimentation, magnetization, aeration, mixing and transferring |
| 04/24/2001 | CA2134776C Stabilization of biowastes |
| 04/19/2001 | WO2001027383A1 Method for minimising the new water use in the water circulation system of a treatment plant |
| 04/19/2001 | WO2001027043A1 Wastewater treatment system with enhanced directional flow |
| 04/19/2001 | WO2001027042A1 Fluid treatment apparatus |
| 04/19/2001 | WO2001027041A1 Apparatus for treating fluids |
| 04/19/2001 | WO2001027040A1 Apparatus for processing fluids |
| 04/19/2001 | WO2001027039A1 Method for purifying domestic, agricultural and industrial wastewater |
| 04/19/2001 | WO2001027033A2 Method and devicve for biological treatment of waste water |
| 04/19/2001 | DE4447792C2 Denitrifikation in einem Verfahren zum Reinigen von Abwasser mittels Belebtschlamm Denitrification in a process for purifying wastewater using activated sludge |
| 04/19/2001 | DE19949689A1 Füllkörperblock Packing element |
| 04/19/2001 | DE19929789C1 Behälter mit einem von unten durchströmbaren, Rückschlagklappen aufweisenden Lochboden Container with a flow-through from below, check valves having perforated bottom |
| 04/19/2001 | DE19917463C2 Dreikammer-Kleinkläranlage zur batch-weisen biologischen Abwasserreinigung Three-chamber septic system for batch-wise biological wastewater treatment |
| 04/19/2001 | CA2387140A1 Method for minimising the new water use in the water circulation system of a treatment plant |
| 04/18/2001 | EP1092683A1 Filler block |
| 04/18/2001 | EP1092475A2 Waste water treatment apparatus |
| 04/18/2001 | EP1091911A1 Method for regulating aeration during waste water biological treatment |
| 04/18/2001 | EP1091797A1 Method for the biological purification of waste waters and waste gases and biofilter therefor |
| 04/18/2001 | CN2426875Y Folded plate uniform limited aeration type horizontal push flowing aeration tank |
| 04/18/2001 | CN2426874Y Micro-bubble oxygen transfer organic effluent disposal biological filter |
| 04/18/2001 | CN1064560C Self-cleansing filter |
| 04/17/2001 | US6218172 Preadapting a bacterial strain with ethylene as a carbon and energy source, said bacteria breaks down halogenated ethenes in an aerobic bioreactor with ethylene supplied in gas pahse at concentration less than 2.3% |
| 04/17/2001 | US6217768 Method for treating sludge from wastewater treatment |
| 04/17/2001 | US6217767 Vacuum between the area above the ground-and/or waste-water and a purging gas introduced therein to the upward flow of bubbles of purging gas through the water requiring stripping or volatilization to remove hydrocarbon contaminants |
| 04/17/2001 | US6217766 Related to the genus desulfotomaculum, capable of reducing sulfite and/or sulfate to sulfide, which tolerates sulfide concentrations of up to 2.5 grams/liter |
| 04/17/2001 | US6217765 Waste water treatment method and waste water treatment equipment capable of treating fluorine waste water containing organic matter, phosphor and hydrogen peroxide |
| 04/17/2001 | US6217761 Wastewater treatment system preventing the build up of solids beneath the clarifier opening |
| 04/17/2001 | US6217760 Waste water treatment system |
| 04/17/2001 | US6217759 Installation for biochemical sewage treatment |
| 04/17/2001 | US6217752 Septic tank alarm system |
| 04/17/2001 | US6216881 Hinged cover for use in a clarifier tank having an inboard launder channel configuration |
| 04/12/2001 | WO2001025159A1 Device for aerating natural and artificial waters, containers, tanks and basins |
| 04/12/2001 | WO2001025158A1 Method for treating sewage of a biological sewage treatment plant |
| 04/12/2001 | WO2001025157A1 Material for use in denitrification for the purpose of removing nitrate nitrogen and method for preparing the same |
| 04/12/2001 | DE10022502A1 Biological adjustment of a neutral to basic pH liquid or solid, particularly waste water, involves decomposition using an organic acid by adding oxygen to immobilize metal ions |
| 04/11/2001 | EP1090886A2 A method of treating sludge and a method of treating organic waste water comprising the same |
| 04/11/2001 | EP1089808A1 Dual diffuser assembly |
| 04/11/2001 | EP0944554B1 Process and device for the biological purification of sewage |
| 04/11/2001 | CN1290663A Deep processing method for deodorizing waste water by soll microorganism |
| 04/11/2001 | CN1290659A Treating system for waste water |
| 04/11/2001 | CN1290570A Treating method and equipment for waste gas containing nitride |
| 04/10/2001 | US6214619 Water swellable thermoplastic polyurethane gel bioreactor carrier containing a nutrient substance |
| 04/10/2001 | US6214607 Method and apparatus for treating perchlorate-contaminated drinking water |
| 04/10/2001 | US6214241 Using hypohalogenous acid |
| 04/10/2001 | US6214230 Composition and method for removing suspended solids from wastewater |
| 04/10/2001 | US6214228 Metabolism of effluents; waste water treatment |
| 04/10/2001 | US6214226 Collector pipe, hollow membrane, hardening fixing resin |
| 04/05/2001 | WO2001023534A1 A method for treating biofilm and other slime products with endo-beta-1,2-galactanase |
| 04/05/2001 | WO2001023309A1 Liquid waste treatment |
| 04/05/2001 | WO2001023308A1 A process and apparatus for treatment of waste water, effluent and biomass |
| 04/05/2001 | WO2001023062A1 Phase separator having multiple separation units, upflow reactor apparatus, and methods for phase separation |
| 04/05/2001 | WO1996030306B1 Biological method of waste water treatment |
| 04/05/2001 | DE19947517A1 Vorrichtung zur Behandlung von Fluiden und Verfahren zur Herstellung derselben The apparatus for treating fluids and methods of manufacturing the same |
| 04/05/2001 | DE19946473A1 Simultaneous removal of nitrogen and phosphorus from waste water comprises treatment in a sequential batch reactor with addition of a nutrient solution produced by anaerobic fermentation of organic waste |
| 04/05/2001 | DE19939917C1 Multi-chamber cesspool for small sewage treatment plants comprises high stability dividing walls separating the main purification chamber from the final chamber with a passage flow link between them |
| 04/05/2001 | CA2385300A1 A method for treating biofilm and other slime products with endo-beta-1,2-galactanase |
| 04/04/2001 | EP1088793A1 Device for the treatment of fluids and process for its production |
| 04/04/2001 | EP0789672B1 Method and apparatus for producing air saturated water |
| 04/04/2001 | CN2425920Y 曝气转刷 Aeration brush |
| 04/04/2001 | CN2425919Y Assembling type counter flow biochemical tower |
| 04/04/2001 | CN2425918Y Sewage treatment equipment |
| 04/04/2001 | CN1289730A Anaerobic-aerobic process for treating sewage by biochemical reactor with vertical baffling |
| 04/04/2001 | CN1289729A Process for treating sewage by alternative bioadsorption-biorgeneration trickling filter tower |
| 04/04/2001 | CN1289531A Process for treating and reclaiming waste liquid of molasses alcohol |
| 04/04/2001 | CN1064026C Process for purifying sulphide-containing waste water |