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)
10/1982
10/05/1982US4352462 Spray nozzle
10/05/1982CA1133151A1 Treatment of wastewater
09/1982
09/29/1982EP0061249A1 Effluent treatment
09/29/1982EP0061228A2 Reaction vessel for a liquid reagent
09/28/1982US4351730 Treatment of biologically-degradable waste
09/28/1982US4351729 Biological filter and process
09/28/1982US4351722 Water treatment plant
09/28/1982US4351721 Device for flushing and aerating a surface coated with microorganisms in a plant for biological purification of waste water
09/22/1982EP0060603A1 Stirrer, having substantially triangular, radial blades, rising towards the circumference
09/21/1982US4350770 Synergistic combination of two strains of pseudomonas or of pseudomonas and bacillus
09/21/1982US4350648 Floating aerator
09/21/1982US4350589 Floating jet aerator
09/21/1982US4350588 Biological fermentation device
09/21/1982US4350587 Sewage treatment system
09/16/1982WO1982003020A1 Lamellar construction for treating liquids
09/14/1982US4349435 Control of anaerobic filter
09/14/1982CA1131813A1 Marine sewage disposal
09/14/1982CA1131812A1 Water purification process
09/08/1982EP0059591A1 Treating liquids in tanks
09/07/1982US4348285 Method of treating liquid agricultural wastes
09/07/1982CA1131371A1 Foam flotation activated sludge process
09/02/1982WO1982002874A1 Method,device and means for purifying waste waters
09/01/1982EP0059020A1 Method for removing undesired components from the soil
09/01/1982EP0058974A1 Process, apparatus and means for waste water purification
08/1982
08/31/1982US4347143 Apparatus and process for purifying polluted water contained in natural or artificial pools by direct injection of oxygen
08/25/1982EP0058247A1 Process and apparatus for the anaerobic purification of liquids containing organic substances
08/25/1982EP0058225A1 Pressurized aeration tank for activated-sludge process sewage treatment
08/24/1982US4346000 Reactor for anaerobic prefermentation of aqueous waste waters
08/24/1982US4345997 Contactor media for removing waste from water
08/19/1982WO1982002706A1 Apparatus for fermentation of organic material
08/17/1982US4344848 Procedure for purifying waste water in a floating layer reactor
08/17/1982CA1130020A1 Method and a device for biologically purifying liquids
08/17/1982CA1129733A1 Method and apparatus for processing animal waste
08/04/1982EP0057152A2 Anaerobic fermentation reactor with packing material
08/03/1982US4342830 Softening organic material by heat and pressurization
08/03/1982US4342650 Organic sludge-energy recycling method
08/03/1982US4342568 Fermentation vat for methane fermentation
08/03/1982CA1129123A1 Method and apparatus for treating water
08/03/1982CA1129122A1 Aeration apparatus
07/1982
07/30/1982EP0048249A4 Mariculture filtering system.
07/27/1982US4341641 Oxidation with ozone
07/27/1982US4341633 Surface aeration system with controlled aerator submergence
07/27/1982US4341632 Destruction of bulking sludge
07/27/1982CA1128460A1 Heavy metal removal from wastewater sludge
07/21/1982EP0056083A1 Filling of biofilters for the biological purification of waste waters
07/20/1982US4340484 Method for the froth flotation separation and treatment of slowly biodegradable components in waste treatment
07/20/1982US4340472 Water treatment plant
07/14/1982EP0055967A1 Process and apparatus for the treatment of nitrogen compounds containing waste water
07/14/1982EP0055705A1 Waste treatment apparatus
07/07/1982EP0055292A1 Apparatus for treating liquids.
07/06/1982US4338197 Method and apparatus for the treatment of wastewater
07/06/1982US4338196 Biological treatment of a formaldehyde-containing waste water contacted with a biomass together with a nitrogen compound
07/06/1982US4338192 For a liquid purifier
07/06/1982CA1127327A1 Device for aerating sewage or sewage-sludges
06/1982
06/30/1982EP0055074A1 A method of treating waste liquors containing phenol
06/29/1982US4337152 Aeration apparatus and method
06/29/1982US4337151 Method and apparatus for pulsed timed control for sludge return line
06/23/1982EP0054248A1 Raw water treatment process and apparatus
06/23/1982EP0054021A1 Rotating biological contactor.
06/23/1982EP0054017A1 Rotating biological contactor material
06/22/1982US4336144 Method for mixing gases with liquids
06/22/1982US4336135 Submerged anaerobic filter waste treatment apparatus
06/22/1982CA1126420A1 Process and apparatus for treatment of wastewater
06/16/1982EP0053982A1 Process control device for, and application to, the treatment of waste water
06/16/1982EP0053865A2 Method for measuring biomass viability
06/16/1982EP0053777A1 Method and apparatus for heating organic waste by biological treatment
06/16/1982EP0053772A1 A process for treating wastewaters
06/15/1982US4334997 Displacement of upper strata of scum with minumal agitation and methane loss; sewage treatment
06/15/1982US4334826 Surface aerator impeller
06/15/1982CA1125929A1 Excess-growth control system for fluidized bed reactor
06/15/1982CA1125684A1 Method for the production of methane and a plant for carrying out the method
06/10/1982WO1982001890A1 Photosynthetic bacteria culture
06/10/1982WO1982001865A1 Sewage treatment system
06/09/1982EP0053396A1 Process and apparatus for the biological purification of waste water
06/08/1982US4334026 Hybrid bio-thermal liquefaction
06/08/1982US4333838 Method and apparatus for purifying an activated sludge-waste water mixture
06/08/1982US4333837 Water purification process and apparatus
06/08/1982US4333834 Device for dispersing a fluid in a liquid and in particular ozonized air in water
06/08/1982US4333831 Evaporation septic tank sewage system
06/08/1982US4333779 Apparatus and process for manufacturing bio-oxidation and nitrification modules
06/02/1982EP0052855A1 Method for the biological purification of waste water
06/01/1982US4332904 Nocardia culture reactive with phthalate ester
05/1982
05/25/1982USRE30944 Waste water treatment; flotation separation by depressurizing the suspension containing dissolved gas bubbles
05/25/1982US4331538 Elimination and fixation
05/25/1982CA1124415A1 Fluids mixing apparatus
05/19/1982EP0052049A1 Process for the production of methane by fermentation of waste, and plant for carrying out this process
05/19/1982EP0051941A1 Anaerobic digester
05/19/1982EP0051888A1 Process for the purification of waste water and/or waste water sludge
05/19/1982EP0051582A1 Method and device for biological processing of waste water
05/18/1982US4330408 Aqueous waste treatment
05/18/1982US4330407 Deaeration, darkness, coagulation, settling
05/18/1982US4330403 Apparatus for purifying polluted liquids
05/18/1982CA1123654A1 Cellulose fermentation process
05/13/1982WO1982001563A1 Biological and chemical conversion processes in liquid phase-system
05/12/1982EP0051082A1 Fermentation vat for biodigesters
05/12/1982EP0051063A1 A process and an apparatus for converting organic material along a micro-biological route.
05/11/1982US4329232 Method for measuring biomass viability
05/11/1982US4329227 Device for the gasification of liquids
05/04/1982US4328175 Sewage treatment
05/04/1982US4328107 Process and apparatus for forming dispersions
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