Patents
Sitemap › C02 - Treatment of water, waste water, sewage, or sludge › C02F - Treatment of water, waste water, sewage, or sludge › C02F 3 - Biological treatment of water, waste water, or sewage
Patents for C02F 3 - Biological treatment of water, waste water, or sewage (46,453)
06/2003
06/24/2003CA2133980C Apparatus and process for removal of pollutants from waste water
06/19/2003US20030111412 Batch style wastewater treatment apparatus using biological filtering process and wastewater treatment method using the same
06/19/2003US20030111411 Method for purifying waste water, and purification plant for carrying out said method
06/19/2003US20030111409 Aerobic, anaerobic nonchemical wastewater treatment
06/19/2003US20030111408 Integrated hydroponic and wetland wastewater treatment systems and associated methods
06/18/2003EP1060134B1 Method and device for treating aqueous flows in a bioreactor, an ultrafiltration unit and a membrane filtration unit
06/18/2003EP0952121B1 Process for purification of waste waters and contaminant spills based on the use of cultivated emergent macrophytes converted into floating cultures
06/18/2003DE20207502U1 Photoprotected starter culture for microbiological treatment of water, soil, sediments and/or sludges, comprises live chemolithoautotrophic bacteria immobilized in a matrix coated with pigments and/or adsorbents
06/18/2003DE10132546C1 Textile material used in biological waste water treatment plant includes effect structures and base structure which is independent of load bearing capability
06/18/2003CN2556198Y Suspended biological carrier for sewage treatment device
06/18/2003CN1424985A Removal of sulfur compounds from wastewater
06/18/2003CN1424984A Process and system for treatment of wastes streams containing water-soluble polymers
06/18/2003CN1424936A Oxygenating apparatus, method for oxygenating liquid therewith and applications thereof
06/18/2003CN1424265A Process and apparatus for wastewater by batched membrane-bioreactor
06/18/2003CN1424260A Waste brick application in waste water treatment
06/18/2003CN1111511C Gas stripping and photocatalytic oxidation sewage treatment equipment
06/17/2003US6579712 Bacteria solution in breeding tank, metering pump coupled to the tank, and a aeration pump; growth of waste-digesting bacteria is enhanced by a heating source; bioremediation
06/12/2003WO2003048053A1 Sewage treatment plant
06/12/2003WO2003048049A1 Process and device for the treatment of effluents produced during wine manufacture
06/12/2003US20030109028 Immobilizing microorganisms; water pollution control
06/12/2003US20030106856 Process and plant for the efficiency solubility of gas and sludge mixing
06/12/2003DE20301868U1 Small-scale waste water treatment plant, comprises one full-time aeration blower supported by second intermittently-operated blower
06/11/2003EP1062349B1 Diisopropyl fluorophosphatase and the utilization and production thereof
06/11/2003CN2555267Y Artificial nunja plants bed
06/11/2003CN1423576A 差动喷射器 Differential ejector
06/11/2003CN1422817A Anaerobic-facultative-aerobic integrated sewage treatment method and reuse apparatus
06/11/2003CN1422816A Biological treatment apparatus and method for purifying waste water or raw water of running water therefor
06/11/2003CN1422815A Burying treatment process capable of purifying percolation water and accelarating domestic refuse stabilization
06/10/2003US6576451 (meth)acrylate endcapped polyether reaction product with a diisocyanate; use in bioremediation of dioxins, bisphenol a and in denitrification of sewage
06/10/2003US6576130 Wastewater is oxygenated so biological oxygen demand (BOD) is not reduced, allowing aerobic decomposition of organic matter, reducing the infiltrative capacity of the absorption field; septic tanks
06/10/2003CA2159088C Metal removal from aqueous solution
06/07/2003CA2412828A1 Filtering composition containing a1,3,5-triazine derivative, a dibenzoylmethane derivative, and a 2-hydroxybenzophenone derivative
06/05/2003WO2003045853A1 Device and method for bio-membrane filtration
06/05/2003WO2003045848A2 Microbiological energy source for operating a consumer
06/05/2003WO2003045847A2 Method for biological treatment of water by adding macromolecular carbohydrates
06/05/2003WO2003045596A1 Bioremediation
06/05/2003WO2002072485A3 Methods and apparatus for biological treatment of waste waters
06/05/2003US20030104192 Apparatus for substantial removal of organic substance(s) and/or nitrogen source(s) from an aqueous medium
06/05/2003CA2467963A1 Microbiological energy source for operating a consumer
06/05/2003CA2467447A1 Method for biological treatment of water by adding macromolecular carbohydrates
06/04/2003EP1316533A2 Chemical-resistant bioreactor carrier, processes for producing the carrier and use of the carrier
06/04/2003EP1315676A1 Method for dewatering municipal waste-activated sludge using high electrical voltage
06/04/2003CN2554160Y Sewage treatment equipment
06/04/2003CN2554156Y Integral water treatment equipment for removing organic-oil-ammonia nitrogen
06/04/2003CN1421402A Microbial prepn for treating paper-making effluent and microbe culturing method
06/04/2003CN1421401A Biological treating equipment suitable for organic waste water
06/04/2003CN1421400A Oxygen-containing water reflux and bioactive carbon waste water treating method and equipment
06/04/2003CN1421399A Electric dialyzer bioreactor and denitrifying method of water containing nitrate
06/04/2003CN1110555C Carrier for deposition of micro organism and process for preparing the same
06/04/2003CN1110549C Method for the rehabilitation of soil polluted by hydrocarbons and other biodegradable substances
06/04/2003CN1110459C Process for decompositing waste molasses ethanol liquid into clear water under normal temperature
06/04/2003CN1110458C Deep treatment and circulating reusing method of waste water in wire production
06/03/2003US6573087 Packaged timed release microorganisms and absorbent matrix for degradation of hydrocarbons
06/03/2003US6573085 Composition for biological treatment of environmental contaminants and waste
06/03/2003US6572774 Activated sludge and/or fixed film process; an opening from the aerator(A) to the clarifier(C) through which either or both waste from the A may flow into C or recycled sludge flow from the C to A; no pump used
06/03/2003US6572773 Nitrification process
06/03/2003US6572771 Neutralizes acid waste water with alkali sludge without using a stirring power
06/03/2003US6571810 Parts washing system
05/2003
05/30/2003WO2003043941A1 Apparatus and method for treating organic waste water
05/30/2003WO2003043939A2 Method and apparatus for the treatment of particulate biodegradable organic waste
05/30/2003WO2003043722A1 Device for aerating liquids
05/30/2003WO2003008434A3 Strains of bacteria destructive for hydrocarbon-containing compounds, surface-active agents and xenobiotics used for cleaning the hydrosphere
05/30/2003WO2002042227A1 Enhanced biogas production from nitrogen bearing feed stocks
05/30/2003CA2468114A1 Enhanced biogas production from nitrogen bearing feed stocks
05/29/2003US20030100098 Bacterial strains that degrade polyaromatic hydrocarbons
05/28/2003EP1313847A1 Method for the preparation of stable and reusable biosensing granules
05/28/2003EP1313669A1 Method and apparatus for treating wastewater using membrane filters
05/28/2003EP1313574A1 Compositions including ammonia oxidizing bacteria to increase production of nitric oxide and nitric oxide precursors and methods of using same
05/28/2003EP1313548A2 Apparatus and method for oxygenating wastewater
05/28/2003EP1313361A2 System and method for treatment of animal waste
05/28/2003EP1278592A4 Differential injector
05/28/2003EP0847374B1 Process for water treatment in a closed circuit with a reactor
05/28/2003CN2552916Y Single-hole film air diffuser
05/28/2003CN2552915Y Film biological reactor sewage depth treatment device
05/28/2003CN2552914Y Adjustable specific gravity suspension biological carrier
05/28/2003CN2552913Y Slow filtering water purifier
05/28/2003CN1420848A Method of purifying water, suitable bacteria for said method and use thereof
05/28/2003CN1420847A Sewage and waste water disposal system
05/28/2003CN1420846A Method for treating aqueous effluents contg. peroxidized compounds
05/28/2003CN1420088A Aerobic bio-membrane sewage treating device
05/28/2003CN1109751C Novel microorganism resistive to hydrogen peroxide
05/28/2003CN1109658C Reactor for biological sewage purification
05/28/2003CN1109657C Two-propeller aerator for ship
05/27/2003US6569338 Reducing the amount of sludge produced per unit
05/27/2003US6569337 Blend of thermoplastic polyurethane and inorganic filler; water purification
05/27/2003US6569336 Method, device and use of said method for biological elimination of metal elements present in an ionized state in water
05/27/2003US6569335 Instrumentation for measuring suspended solids concentration in the aeration tank and in the WAS flow stream communicates with a data processor
05/27/2003US6569334 Method of high-concentration culture of nitrifying bacteria or denitrifying bacteria contained in activated sludge, culture promoter to be used in high-concentration culture method of nitrifying bacteria, and method of weight loss treatment of activated sludge
05/27/2003US6569332 Integrated anaerobic digester system
05/27/2003US6569322 Metal stearate denitrification system
05/27/2003US6569321 Method and apparatus for treating stormwater runoff
05/22/2003WO2003042465A1 Method and plant for purification of water
05/22/2003WO2003042118A1 Method and device for purifying water
05/22/2003WO2003042117A1 Integrated anaerobic digester system
05/22/2003WO2003042116A1 Anaerobic treatment apparatus
05/22/2003WO2003042115A1 Integrated hydroponic and wetland wastewater treatment systems and associated methods
05/22/2003WO2003042114A1 Integrated hydroponic and fixed-film wastewater treatment systems and associated methods
05/22/2003WO2003042109A1 Method and device for the treatment of effluent, sludge and organic substrates
05/22/2003WO2003041837A1 Water-floating zeolite composites
05/22/2003US20030097681 Plant is cultivated in an environment contaminated with the hazardous chemical substances for decomposing and removing hazardous chemical substances
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