| Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453) |
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| 02/07/2002 | US20020015986 Solid support for use in bioremediation and pollution control |
| 02/07/2002 | US20020014455 Method for purifying contaminated underground water |
| 02/07/2002 | DE10036043A1 Second biological stage for water purification replacing chemical removal of phosphorus and nitrogen compounds comprises adding phytoplankton which is then killed by irradiating with UV, removed by sedimentation and composted |
| 02/07/2002 | DE10035903A1 Bioreactor for small scale water purification comprises outer tube with base, inlet and outlet, concentric inner tube, aeration pipe which produces large air bubbles mounted below inner tube; and sloping perforated plate above inner tube |
| 02/07/2002 | DE10022148A1 Verfahren und Vorrichtung zur Reinigung häuslicher Abwässer Method and apparatus for treatment of domestic sewage |
| 02/06/2002 | EP1178017A2 Method for water denitrification |
| 02/06/2002 | EP0910551B1 Ultrapurification method |
| 02/06/2002 | CN1334252A Method for denitrogenation of water |
| 02/06/2002 | CN1334250A Method for cleaning water at water inlet of water works |
| 02/06/2002 | CN1334249A Equipment for cleaning water at water inlet of water works |
| 02/06/2002 | CN1078873C Granualr carrier for treaitng sewage or waste water, method for producing same |
| 02/05/2002 | US6344147 Flotation plant |
| 02/05/2002 | US6344144 High-capacity bio-block aeration system for stimulating enhanced bio-activity in aerobic wastewater treatment processes |
| 02/05/2002 | US6344143 Process for wastewater treatment using intermittently decanted extended aeration process |
| 02/05/2002 | US6344142 Sludge settled in a settling tank is returned into a return sludge reaction tank having a settling section in its rear portion; unreacted chemicals contained in returned sludge can be utilized and not discharged as sludge. |
| 02/05/2002 | US6344141 Biological control of agricultural waste odor |
| 02/05/2002 | CA2171086C Improvements in bioremediation of hydrocarbon contaminated soils and water |
| 02/05/2002 | CA2109436C Wastewater treatment system |
| 01/31/2002 | WO2002008385A1 Novel strain for decomposing tmah, and method of wastewater treatment using the same |
| 01/31/2002 | WO2000063128A9 Method and apparatus to establish and optimize sedimentation and methane fermentation in primary wastewater ponds |
| 01/31/2002 | US20020012987 Method for purifying matter contaminated with halogenated organic compounds |
| 01/31/2002 | US20020011441 High dissolved oxygen mixer-digester |
| 01/31/2002 | DE10033513A1 Verfahren und Vorrichtung zur Behandlung von Wäschereiabwässern Method and apparatus for treatment of laundry effluents |
| 01/30/2002 | EP1176122A1 Magnetic sludge suitable for use in waste water treatment and method for preparing the same and method for waste water treatment |
| 01/30/2002 | EP1175375A1 Method for biologically purifying waste water, using a fluidised bed in a bioreactor |
| 01/30/2002 | EP1109749A4 In situ treatment for contaminated surface waters and products therefor |
| 01/30/2002 | EP1071636B1 Method and device for anaerobic purification of waste water using the uasb method |
| 01/30/2002 | EP1070023A4 Surge anoxic mix sequencing batch reactor systems |
| 01/30/2002 | CN2474528Y Membrane aeration, drainage structure |
| 01/30/2002 | CN1333872A Apparatus and method for measuring Nox and nutrifiation/denitrification retes in biochemical processes |
| 01/30/2002 | CN1333705A Membrane assembly for solid-liquid separation method of cleaning the same, and detergent |
| 01/30/2002 | CN1333190A Sewage treatment method and equipment thereof |
| 01/30/2002 | CN1333189A Electrode holder and support for water drainage |
| 01/30/2002 | CN1078568C Process for biological purification of waste water |
| 01/29/2002 | US6342159 Shipboard biomechanical oil water separator |
| 01/29/2002 | US6341943 Blower |
| 01/29/2002 | CA2205003C Wastewater treatment method and plant |
| 01/29/2002 | CA2149202C Treatment system for treating waste water |
| 01/24/2002 | WO2002006168A1 Method and device for purifying and treating waste water in order to obtain drinking water |
| 01/24/2002 | WO2002006166A1 An oriented structure for treating a fluid |
| 01/24/2002 | WO2002006165A1 Immersed fixed bed biological reactor and method for treating liquid effluents |
| 01/24/2002 | WO2002006164A1 Method for the treatment of organic matter contaminated drinking water |
| 01/24/2002 | US20020008065 Separation wastes; water treatment |
| 01/24/2002 | US20020008057 Organic slurry storage basin cover and method of constructing and deploying cover |
| 01/23/2002 | EP1173389A1 Method of treating waste water |
| 01/23/2002 | EP1173271A1 Gas/liquid mixing apparatus and method |
| 01/23/2002 | EP0722555B1 Diffuser conduit joint |
| 01/23/2002 | CN1332795A Mixed microbial population designated as JSB98.0 capable of degrading fecal material of animals |
| 01/23/2002 | CN1332701A Process for treatment of waste water containing heavy metals |
| 01/23/2002 | CN1332043A Sewage treatment device |
| 01/22/2002 | CA2188994C Device for biological wastewater treatment |
| 01/22/2002 | CA2185137C Method of operating a sequencing batch reactor |
| 01/19/2002 | CA2314383A1 Biological process for removing phosphorus involving a membrane filter |
| 01/17/2002 | WO2002004364A2 Process for biodegrading crude oil |
| 01/17/2002 | WO2002004356A1 Method for dewatering municipal waste-activated sludge using high electrical voltage |
| 01/17/2002 | WO2002004354A1 Method and device for treating waste water from launderettes |
| 01/17/2002 | WO2002004103A1 A device for supplying oxygen into a volume of water |
| 01/17/2002 | WO2001062678B1 Wastewater treatment process |
| 01/17/2002 | WO2001046075A3 Method for biological effluent treatment |
| 01/17/2002 | US20020005381 Blend of thermoplastic polyurethane and inorganic filler; water purification |
| 01/17/2002 | US20020005380 Blend of thermoplastic polyurethane and inorganic filler; water purification |
| 01/17/2002 | DE10031093A1 Vorrichtung zur Dreiphasentrennung bei der Behandlung von Abwasser und Schlamm Apparatus for three-phase separation during treatment of waste water and sludge |
| 01/17/2002 | CA2382357A1 Method for dewatering municipal waste-activated sludge using high electrical voltage |
| 01/16/2002 | EP1171213A1 Mini sewage treatment plant and use of the plant |
| 01/16/2002 | CN2471775Y High effective mixing and oxygen supplying mixer for treating sewage |
| 01/16/2002 | CN2471774Y High effective mixing and oxygen supplying air intake apparatus for treating sewage |
| 01/16/2002 | CN2471773Y Septic tank with purifying and treating sewage |
| 01/16/2002 | CN2471772Y Forced aeration apparatus |
| 01/16/2002 | CN2471771Y Energy consumptionless pressurized aeration apparatus |
| 01/16/2002 | CN1331660A Utilization of oil-in-water emulsions in aerobic biological sewage treatment plants |
| 01/16/2002 | CN1331052A Process and equipment for denitrifying N-contained industrial sewage |
| 01/16/2002 | CN1077868C Method and appts. for sewage water treatment |
| 01/16/2002 | CN1077867C Biological treatment appts. media board for same and media board assembly |
| 01/16/2002 | CN1077866C Water treatment method and appts. |
| 01/15/2002 | CA2024993C Residual water anaerobic fermentation treatment process for sulfates and organic materials suppression |
| 01/10/2002 | WO2002002467A1 Three-phase separation device for treating waste water and sludge |
| 01/10/2002 | WO2002002466A1 Method and device for treating pumpable media contaminated with harmful substances |
| 01/10/2002 | WO2002002216A1 Method and device for feeding fine bubbles |
| 01/10/2002 | US20020003314 Aeration device for water and a method for manufacturing an aeration device |
| 01/10/2002 | US20020003108 Process and installation for the treatment of effluents loaded with organic matter |
| 01/10/2002 | DE10030984A1 Purification of waste water to produce drinking water comprises aerobic microbiological treatment, removing material which has not been broken down, followed by biological post-treatment and filtering |
| 01/09/2002 | EP1170260A1 Process and apparatus for the treatment of organic laden wastewaters |
| 01/09/2002 | EP1169270A1 Method and apparatus for treating leach fields |
| 01/09/2002 | CN1330239A Air flow circuit switching device |
| 01/09/2002 | CN1330190A Disintegrating system in waste pipe |
| 01/09/2002 | CN1330046A Drainage treatment device |
| 01/09/2002 | CN1330045A Process for treating organic sewage |
| 01/09/2002 | CN1077553C Waste water treatment device |
| 01/09/2002 | CN1077551C Method and apparatus for treatment of concentrated waste water |
| 01/08/2002 | US6337020 Stirring to impart mechanical energy, attacking cell walls of bacteria and micro-organisms |
| 01/08/2002 | CA2142010C Process and device for the biological treatment of organically polluted waste water and organic waste |
| 01/08/2002 | CA2133265C Anaerobic and aerobic integrated system for biotreatment of toxic wastes (canoxis) |
| 01/03/2002 | WO2002001220A2 Method and equipment for monitoring syntrophic relations in a biological process fluid |
| 01/03/2002 | WO2002000558A1 Treatment of contaminated waters by surface aeration and recirculation of classified sludges |
| 01/03/2002 | US20020001529 Water circulation apparatus and method |
| 01/03/2002 | US20020000409 Phase separator having multiple separation units, upflow reactor apparatus, and methods for phase separation |
| 01/03/2002 | DE10029689A1 Vorrichtung zur lösbaren Befestigung von Belüftungseinrichtungen bei Anlagen zum Belüften von Wasser Apparatus for releasably fastening aeration devices in systems for aerating water |
| 01/03/2002 | DE10023652A1 Verfahren und Vorrichtung zur aeroben biologischen Abwasserreinigung Method and apparatus for aerobic biological waste water purification |
| 01/02/2002 | EP1167516A2 Aromatic compound-degrading bacteria and use thereof |
| 01/02/2002 | EP1167305A2 Process for the treatment of liquid waste from oil mills |