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)
07/1998
07/21/1998US5783081 Performance of anaerobic digesters
07/21/1998US5783071 For anaerobic and aerobic treatment of wastewater in a tank employing an inverted cone clarifier
07/21/1998US5783069 Packing elements
07/21/1998US5783066 Plastics articles
07/21/1998CA1339959C Process for the control of biological clarification stages
07/17/1998CA2195473A1 Pre-acclimatization and amplification system for microorganisms
07/16/1998WO1998030505A2 Processing of sewage sludge into humus
07/16/1998WO1998030504A1 Aerated removal of nitrogen pollutants from biologically degradable wastewaters
07/16/1998WO1998030319A1 Device for stirring and aerating a liquid and eliminating the foam in a vat for treating this liquid
07/16/1998DE19700434C1 Klärschlammvererdung Sewage sludge
07/16/1998DE19651870A1 Treatment process for combined municipal and trade water effluent
07/15/1998EP0853068A2 Microorganism holding carrier for use in a fluidized bed
07/15/1998EP0853067A2 Fixed biomass biological reactor comprising a hydrostatically running rotary contactor
07/15/1998CN2286181Y Domestic sewage treatment integral device
07/15/1998CN2286180Y Air-diffusion plate
07/15/1998CN2286179Y Plane network filler for water treatment
07/15/1998CN1187469A Method of producing granular enzymetic filling for treating waste water
07/15/1998CN1187466A Equipment for treating sewage
07/14/1998US5780290 Non-polluting compositions to degrade hydrocarbons and microorganisms for use thereof
07/14/1998US5779996 Microbial remediation reactor and process
07/14/1998US5779890 Multi-eductor system
07/14/1998US5779885 Rotating biological filter system
07/14/1998CA2226984A1 Microorganism holding carrier for use in a fluidized bed
07/09/1998WO1998029177A1 Integrated water treatment system for aquaculture water
07/09/1998WO1998018727A3 Biological waste water purification process and device
07/09/1998WO1998017593A3 Process for preparing and utilizing a potential energy field reactor
07/09/1998DE19700354A1 Waste water cleaning unit
07/08/1998EP0851844A1 Process for purifying waste water
07/08/1998EP0851843A1 Subsurface remediation method and apparatus
07/08/1998EP0720590A4 Rotating biological filter system
07/08/1998CN1187172A Carrier-separating and water-collecting mechanism of waste water treatment equipment
07/07/1998US5776344 Denitrogenation of waste water containing nitrogen, aerobic process, oxidation, nitration, fluid flow and anoxia
07/07/1998CA2068765C Method for the control of biofouling
07/02/1998WO1998028058A1 Method and device for continuous filtration of liquids
07/02/1998WO1998028043A2 BACTERIAL STRAIN CORYNEBACTERIUM. sp K2-17 AND METHOD FOR MICROBIAL DECONTAMINATION OF MATERIALS CONTAMINATED WITH PHENOXYALCANOIC ACID COMPOUNDS
07/01/1998EP0850882A2 Apparatus for treating organic waste water utilizing microorganisms
07/01/1998CN2285288Y Aeration oxygenating performation pipe for biochemical sewage treatment
07/01/1998CN2285287Y Low-density fibre sheaf soft padding
07/01/1998CN2285286Y No energy consumption automatic cleaning equipment for running-water
07/01/1998CN1186050A System and method for removing biologically both nitrogen and phosphorous removal in sewage and wastewater
06/1998
06/30/1998US5772891 Water treating method for treating waste water by using ion exchange resin
06/30/1998US5772887 Decontamination of liquids with flowing streams in chemical reactors
06/30/1998US5772886 Aquaculture process
06/30/1998US5772870 Tower packing block and method for manufacturing the same
06/30/1998CA2062203C Denitrifaction of septic tank effluent
06/25/1998WO1998027016A1 Methods for the detoxification of nitrile and/or amide compounds
06/25/1998WO1998027015A1 Bioremediation of pollutants with butane-utilizing bacteria
06/25/1998WO1998026881A1 In situ remediation of contaminated soils
06/25/1998DE19737373A1 Biological removal of both nitrogen and phosphorus from waste water
06/25/1998DE19705896C1 High capacity bed packing for biological filter in waste water treatment plant
06/25/1998DE19652938A1 Water treatment reactor has bed of cages packed with micropore bodies
06/25/1998DE19648646A1 Waste water treated by fermentive coagulation and bio-reactor system
06/25/1998CA2275413A1 Methods for the detoxification of nitrile and/or amide compounds
06/25/1998CA2273787A1 In-situ remediation of contaminated soils
06/24/1998EP0849358A2 Nitrate detection, measurement, and treatment system
06/24/1998EP0849230A1 Dual-stage biological process for removing nitrogen from wastewater
06/24/1998EP0849229A1 Process for the aerobic biological purification of water
06/24/1998EP0849228A2 Carrier for bioreactor and method of treating wastewater using the carrier
06/23/1998US5770081 Apparatus for and method of reducing solids and controlling surges in the flow of effluent from a wastewater treatment plant
06/23/1998US5770080 Air charged backwashing bioclarifier
06/23/1998US5770079 Biological injector and method of application thereof
06/23/1998US5770059 Waste water treatment apparatus
06/18/1998WO1998025859A1 Equalization basin-reactor system
06/18/1998WO1998025858A1 Closed-loop wastewater treatment system
06/18/1998DE19651890A1 Waste water treatment plant esp. for car wash
06/18/1998DE19651871A1 Treatment process for combined municipal and trade water effluent
06/18/1998DE19651578A1 Waste water treatment plant
06/18/1998CA2241208A1 Equalization basin-reactor system
06/17/1998EP0847963A2 Process for operating a two-stage installation for purifying communal waste water and installation for carrying out the process
06/17/1998EP0847798A1 Method of introducing a gas into a liquid and apparatus therefor
06/17/1998EP0847374A1 Process for water treatment in a closed circuit with a reactor
06/17/1998CN2284236Y Surface aerator
06/17/1998CN1184783A Mixing and aeration unit
06/16/1998US5766929 Faster degradation which does not result in the production of vinyl chloride
06/16/1998US5766928 Using a heat exchanger to adjust the low temperature to that for optimum growth of hydrocarbon-degrading microorganisms; water pollution control; oil spills
06/16/1998US5766491 Backflow prevention system for media bed reactor
06/16/1998US5766490 Sealed enriching space
06/16/1998US5766477 Process for treating a liquid reactive medium
06/16/1998US5766476 First stage with aeration tank having anoxic environment, second stage operating under oxidizing conditons, either or both tanks containing an ion exchange resin
06/16/1998US5766475 Waste water disposal system
06/16/1998US5766474 Biomass impoundment management system for purifying water
06/16/1998US5766465 Water treatment apparatus
06/16/1998US5766459 Integrated wastewater treatment system with induced sludge velocity
06/16/1998US5766454 Home wastewater treatment and denitrification system
06/10/1998EP0846664A2 Waste water treatment plant achieving optimum use of the energy
06/10/1998EP0846085A1 Method and device for digestion of sludge
06/10/1998EP0846084A1 Use of the yeast yarrowia lipolytica for the industrial biodegradation of oils and fats in sewage and biodegradation process using it
06/10/1998EP0846083A1 Process and device for treatment of water from a biodegradeable process
06/10/1998EP0766651A4 Controlled denitrification process and system
06/10/1998EP0749403B1 Process for purifying and reusing surfactant-containing waste waters
06/10/1998EP0710218A4 Monitoring biological activity in wastewater
06/09/1998US5762835 Aerator
06/09/1998US5762801 Process and apparatus for biological treatment of water
06/09/1998US5762793 Filter apparatus for waste water discharge system
06/09/1998US5762784 Containment of water treatmant medium
06/04/1998WO1998023770A1 Method and apparatus for measuring use of a substrate in a microbially catalysed reaction
06/04/1998WO1998023725A1 Methods and apparatus for enhancement of mass transfer of a fluid in a porous matrix system containing biomass
06/04/1998WO1998023543A1 Method for improving wastewater treatment
06/04/1998WO1998023542A1 Method for eliminating phosphorus contained in effluents
06/04/1998WO1998023541A1 Waste water purification process
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