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)
01/1984
01/24/1984US4427548 Detoxifying aquarium water
01/19/1984WO1984000157A1 Improvements in a process in microbiological purification and device and materials therefor
01/17/1984CA1160767A1 Waste treatment system having integral intrachannel clarifier
01/11/1984EP0098023A1 A method and a device for the anaerobic fermentation of organic waste material such as liquid manure
01/10/1984US4425231 Waste water treating apparatus
01/10/1984CA1160369A1 Waste water treatment system with aeration and circulation means
01/04/1984EP0097388A1 A method and flow-sheet for adapting waste water, being rich in calcium, for an anaerobic fermentation
01/04/1984EP0097345A2 Device for the exchange of material and/or heat and/or chemical reactions between gaseous and/or liquid materials and for mixing these materials
01/03/1984US4424064 Methane production from and beneficiation of anaerobic digestion of aquatic plant material
01/03/1984CA1159781A1 Microbiological recovery of metals
01/03/1984CA1159756A2 Method and apparatus for processing waste
12/1983
12/28/1983EP0096825A1 Apparatus for the anaerobic purification of waste water
12/27/1983US4422930 Catalytic oxidation
12/27/1983US4422929 Wastewater treatment plant
12/27/1983US4422771 Downflow mixer
12/27/1983CA1159449A1 Disc for aeration of sewage
12/27/1983CA1159344A1 Method for removing scale from porous diffusion tiles
12/21/1983EP0096170A1 Process and apparatus for the biological anaerobic denitrification of aquarium water
12/20/1983US4421696 Gas diffuser
12/20/1983US4421648 Apparatus and a method for biological treatment of waste waters
12/20/1983US4421534 Tower for removing odors from gases
12/20/1983US4421414 High efficiency mixing method
12/13/1983US4420397 Decomposition using fungi
12/06/1983US4419243 Growth of biomass
12/06/1983CA1158024A1 Apparatus for continuous treatment of mixtures
11/1983
11/30/1983EP0095143A2 Process for the biological conservation of organic material in waste water sludge and manure
11/30/1983EP0095049A2 Treatment of obnoxious chemical wastes
11/29/1983CA1157971A1 Device for dispersing a liquid in a gaseous medium
11/29/1983CA1157970A1 Aeration system for solid biological waste
11/23/1983EP0094573A1 Device for the purification of exhaust air
11/23/1983EP0094447A1 Method and apparatus for the evaporation of liquids from mixtures of liquids
11/22/1983US4416993 Apparatus with semi-permeable membrane, and method for cultivating micro-organisms
11/22/1983US4416781 Treatment of biologically-degradable waste
11/22/1983US4416780 Method to upgrade sewage treatment plants overloaded in continuous operation
11/22/1983US4416779 Method for producing an aqueous solution of high phosphorous content
11/22/1983CA1157587A1 Process and apparatus for absorbing ozone
11/22/1983CA1157586A1 Biological anaerobic residual water purification system for waters with high organic and sulfate pollutants contents
11/22/1983CA1157359A1 Apparatus and process for manufacturing bio-oxidation and nitrification modules
11/15/1983US4415662 Microbial degradation of petroleum materials
11/15/1983US4415661 Applying geotrichum fungus to crude petroleum oil spillages; pollution control
11/15/1983US4415658 Process for decomposing 2,4-dihydroxy-6-amino-s-triazine derivatives
11/15/1983US4415454 Nitrifying bacteria fixed on a macroporous carrier
11/15/1983US4415453 Anaerobic treatment
11/15/1983US4415452 Mixing with sludge; pressurization; aeration; flocculation; continuous processing
11/15/1983US4415451 Aeration and circulating microorganism-implanted coal particles; sludge
11/15/1983US4415450 Method for treating wastewater using microorganisms and vascular aquatic plants
11/09/1983EP0093704A2 Process for mixing liquids with gases
11/09/1983EP0093703A2 Process for the control of an air or oxygen feed in a jet mixing aeration plant
11/08/1983US4414333 Soybean lecithin and a urea type compound
11/08/1983CA1156574A1 Micro-emulsified nutrients
11/02/1983EP0093027A1 Carrier for the fixation of microorganisms
11/01/1983CA1156383A1 Swing diffuser
11/01/1983CA1156382A1 Waste disposal apparatus
11/01/1983CA1156381A1 Procedure for purifying waste water in a fluidized bed reactor
10/1983
10/27/1983WO1983003597A1 Method for material exchange in a liquid
10/26/1983EP0092159A2 Process and apparatus for the biological purification of waste water
10/26/1983EP0091919A1 Lamellar construction for treating liquids
10/25/1983US4412003 Integral flow circulator for fluid bed reactor
10/25/1983US4411780 With deep well treatment tank
10/25/1983CA1155976A1 Apparatus for anoxic-aerobic activated sludge process and treatment of waste waters
10/25/1983CA1155639A1 Process and apparatus for gassing liquids
10/25/1983CA1155638A1 Process and apparatus for gassing liquids
10/12/1983EP0091121A2 Process and apparatus for the biological purification of waste water
10/11/1983US4409107 Method and apparatus for aerating bodies of water
10/11/1983US4409102 Process for removing contaminants from a stream of methane gas
10/11/1983US4409100 Liquid aerating device
10/05/1983EP0090450A1 Fluidized-bed reactor for purification of waste water
10/05/1983EP0090389A1 Process for the anaerobic fermentation of organic materials
10/05/1983EP0090234A2 Injector for a flotation apparatus
10/05/1983EP0090128A1 Process and apparatus for the gasification of fluids already charged with a gas, and plant for carrying out the process
10/04/1983US4407718 Long vertical shaft bioreactor with pressurized head tanks
10/04/1983US4407717 Wastewater treatment process
09/1983
09/28/1983EP0089466A1 Submerged aerator
09/28/1983EP0089465A1 Submerged aerator
09/27/1983US4406790 Method for operating a biological sewage purification plant
09/27/1983CA1154394A1 Detoxification of dike drainage from the tailings pond of a tar processing plant
09/21/1983EP0088850A1 Device for introducing a gas into a liquid and use of the said device
09/20/1983US4405456 Sewage treatment
09/20/1983CA1153946A1 Dispersing and biodegrading compositions used on hydrocarbons polluted areas
09/06/1983US4402831 Degradation of inorganic cyanides with fungal mycelium
09/06/1983US4402758 Purging oxygen distribution system with nonoxidizing gas, injection hydrochloride gas, and repeat purging
09/01/1983WO1983002970A1 System for removing contaminants from water area
08/1983
08/31/1983EP0087129A1 Method and apparatus for the biological nitrification of waste water
08/31/1983EP0087128A1 Method and apparatus for the biological purification of waste waters containing phosphate
08/31/1983EP0087127A1 Method and apparatus for the biological purification of waste waters containing phosphate
08/31/1983EP0087092A1 Process and device for the biological purification of waste water containing phosphate
08/31/1983EP0086863A1 Process et apparatus for the biological denitrification of ground water
08/30/1983US4401762 Emulsification of nutrients dissolved in water in a water-immiscible hydrophobic liquid; pollution control; biodegradation
08/30/1983US4401569 With microorganisms
08/30/1983US4401565 Second tank produces gas such as methane or carbon dioxide
08/24/1983EP0086587A1 Activated sludge wastewater treating process
08/24/1983EP0086489A1 Waste water treatment plant
08/24/1983EP0086437A2 Process and device for the regeneration by compression of flexible porous materials
08/24/1983EP0029066B1 On-site wastewater treatment system
08/23/1983CA1152658A1 Method and apparatus for the treatment of wastewater
08/23/1983CA1152657A1 On-site wastewater treatment system
08/23/1983CA1152486A1 Radial flow gas liquid rotor-type mixer
08/18/1983WO1983002770A1 Purification installation
08/17/1983EP0086019A1 Method and apparatus for treating a liquid with a gas
08/17/1983EP0085961A1 An oxygen injection nozzle
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