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)
12/1995
12/07/1995WO1995032923A1 Method and apparatus for the biochemical purification of a liquid medium
12/07/1995DE4419621A1 Process and assembly for elimination of cpds. from effluent water in two=stage process
12/07/1995DE4419017A1 Biological water treatment plant consists of discs within surrounding chambers
12/07/1995DE19519742A1 Sewage treatment by intermittent nitrification and denitrification
12/06/1995EP0685433A1 Process for the treatment of ligand effluents with activated sludge
12/06/1995EP0685432A1 Buoyant fluidisable carrier material for biotechnological processes
12/06/1995EP0685083A1 Process for operating a sewage water clarification plant and sewage water clarification plant.
12/05/1995US5472611 Process and apparatus for purification of wastewater
12/05/1995US5472610 Blowing a gas into a granular filter bed
12/05/1995US5472472 Slurrying; soluble phosphorus precipitated with metallic salts; aerobic and anaerobic treatment of biomass; polishing ecoreactor zone; humus
12/05/1995CA1337687C Apparatus for treating a fluid
11/1995
11/30/1995WO1995032278A1 Bioremediation of polycyclic aromatic hydrocarbon-contaminated soil
11/30/1995DE4419917A1 Integrated activated sludge unit for waste water treatment
11/30/1995DE4418060A1 Digestion of varied solid and liquid organic wastes
11/29/1995EP0683756A1 Reactor for biological sewage purification
11/29/1995EP0683755A1 Method and apparatus for biological activation waste water treatment
11/29/1995CN1112457A Gas dissolving
11/28/1995US5470476 Method for the treatment of animal waste
11/28/1995US5470460 Apparatus for the purification of cyanide-containing waste water
11/28/1995US5469597 Closed loop surface cleaning system
11/28/1995CA2095132C Aerator for a liquid-filled basin
11/23/1995WO1995031408A1 Biological preparation and method of removing crude oil and petroleum-product contaminants from water and soil
11/22/1995EP0683139A2 Process for waste water purification by means of activated sludge
11/22/1995EP0683138A2 Process for making photoprocessing waste solution harmless
11/22/1995EP0575567B1 Wastewater treatment process
11/22/1995CN2213156Y Ball type combined filler
11/21/1995US5468628 Compounds and methods for generating oxygen and free radicals used in general oxidation and reduction reactions
11/21/1995US5468392 Submerged fixed-film biological waste treatment method and system
11/21/1995US5468375 Wastewater pretreatment tank assembly
11/21/1995CA2094083C Method for the biological processing of organic substances and more particularly for anaerobic biological hydrolysis for subsequent biomethanization and an apparatus for the performance of the method
11/16/1995WO1995030629A1 Wastewater pretreatment tank assembly
11/16/1995WO1995028475A3 Biological isolates for degrading nitroaromatics and nitramines in water and soils
11/16/1995DE4430107A1 Biological waste water treatment
11/16/1995DE4429208C1 Purifying waste water by adjusting pH and temp., filtering, and
11/16/1995DE4427830C1 Mixing mechanism for sludge container
11/16/1995DE4416687A1 Removal of animal odours from animal housing
11/16/1995DE4415637A1 Clarification and purification of vehicle wash water for recycling
11/15/1995EP0681561A1 Wastewater treatment process and apparatus
11/15/1995EP0681506A1 Basin for eliminating floating particles from sewage water
11/14/1995US5466604 Apparatus for monitoring biological activity in wastewater and controlling the treatment thereof
11/14/1995US5466600 Use of carbon monoxide dehydrogenase for bioremediation of toxic compounds
11/14/1995US5466374 Process for treating organically polluted water
11/14/1995US5466373 Maintenance-free enhancement of aquatic biological filters using amphipods
11/14/1995US5466369 Liquid circulating device
11/14/1995US5466367 Industrial waste water treatment
11/09/1995DE4415602A1 Aerobic sewage treatment process
11/08/1995EP0680935A1 Bed height sensing device for biological reactor
11/07/1995US5464766 Multienzyme powdered composition containing bacteria for treatment of waste
11/07/1995US5464539 Process for the production of hydrogen by microorganisms
11/06/1995CA2144027A1 Bed height sensing device for biological reactor
11/02/1995WO1995029130A1 Oxygen enriched liquids, method and apparatus for making, and applications thereof
11/02/1995EP0679612A1 Installation for the treatment of heterogenous wastes in an autoclave by means of wet oxidation
11/02/1995EP0679432A2 Backflow prevention system for media bed reactor
11/02/1995DE4415017A1 Two stage digester for animal and plant waste
11/01/1995CN1110962A Blast aeration automatic control system
11/01/1995CN1110961A Method and apparatus for treating water containing organic sulfur compounds
10/1995
10/31/1995US5463176 High pressure system
10/31/1995US5462669 Method for dissolved air floatation and similar gas-liquid contacting operations
10/31/1995US5462666 Treatment of nutrient-rich water
10/31/1995US5462657 Aeration system
10/31/1995US5462656 Cutting oil treatment apparatus
10/30/1995CA2144028A1 Backflow prevention system for media bed reactor
10/26/1995WO1995028475A2 Biological isolates for degrading nitroaromatics and nitramines in water and soils
10/26/1995WO1995028359A1 Process and device for purifying water, in particular from a composting process
10/26/1995DE19516378A1 Fermentation of organic residues, industrial and other organic residues
10/26/1995DE19505836A1 Process for removing waste water from fermented prods
10/26/1995CA2165058A1 Process and device for purifying water, in particular from a composting process
10/25/1995EP0678480A1 Process and installation for the treatment of all kinds of organic refuse
10/24/1995US5460744 Lime, activated sludge and anaerobic slugde, diatomaceous earth or zeolite, photosynthesis bacteria solution
10/24/1995US5460731 Method of aeration of liquids
10/19/1995WO1995027682A1 Plant and method for local treatment of water and sewage
10/19/1995WO1995027566A1 Process and device for separating suspended substances from fluids
10/19/1995DE4412484A1 Assembly to enrich esp. water with gas
10/18/1995EP0677484A1 Process and apparatus for purification of water originating particularly from a compost formation process
10/18/1995EP0677321A1 Hose assembly and method of making the same
10/18/1995EP0677024A1 Method for removing hydrogen sulphide from oil-containing water and equipment therefor.
10/18/1995EP0676989A1 Reactor for purifying contaminated solids.
10/18/1995EP0644856A4 Method for aiding microbial degradation of spilled oil.
10/18/1995CN1110257A Method for treating waste water produced from penicillin production
10/17/1995US5459066 Method of separating oily materials from wash water
10/17/1995US5459065 Process for the degradation of coal tar and its constituents by Phanerochaete chrysosporium
10/17/1995US5458816 Apparatus for aerating and/or anaerobically mixing liquids
10/17/1995US5458788 Plastic media filter
10/17/1995US5458779 Biodegradation
10/17/1995US5458778 Method of treating waste water from a car wash at a vehicle refueling station
10/17/1995US5458771 Apparatus for the gasification of liquids
10/12/1995WO1995026932A1 Novel compositions and methods for water treatment
10/12/1995WO1995026806A1 Permeation and biological treatment of waste gas
10/12/1995DE4411991A1 Verfahren und Vorrichtung zum Abtrennen von suspensierten Stoffen aus Flüssigkeiten Method and apparatus for separating substances from liquids suspensierten
10/11/1995EP0675982A1 Method of disposing of excess sludge.
10/11/1995EP0675857A1 Process for biochemical oxidation of ultra-toxic wastewater in a packed bed bioreactor
10/11/1995EP0675755A1 Method for producing particles of a first fluid in a second fluid, said fluids being non-miscible, and device therefor
10/11/1995EP0665819A4 Odour controlled waste water treatment system.
10/11/1995EP0540563B1 Waste water treatment plant
10/11/1995EP0354239B1 Installation and device for purifying contaminated soils
10/11/1995CN2209673Y Gas-lift three-phase multiple fluidized-bed reacting pool
10/11/1995CN1109847A Bubbled type vertical-flow aerobic aeration process
10/11/1995CN1109846A Process and apparatus for the biological purification of water
10/11/1995CN1109792A Device for preparation and supply of hexagonal water
10/10/1995US5457043 For treating wastewater polluted with dye
1 ... 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 ... 465