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)
06/1996
06/12/1996CN2228908Y Elastic filler
06/12/1996CN2228907Y Biological adaptive colour flexible stereo-filler
06/12/1996CN2228906Y Compound variable speed expansion biological filter pool
06/11/1996US5525269 Impeller tiplets for improving gas to liquid mass transfer efficiency in a draft tube submerged turbine mixer/aerator
06/11/1996US5525242 Apparatus and process for the aeration of water
06/11/1996US5525231 Water treatment
06/11/1996US5525230 Process of and apparatus for treating a fluid
06/11/1996US5525229 Hydrolysis; first methanation at thermophilic conditions; second methanation at mesophilic conditions
06/11/1996US5525228 Temperature-phased anaerobic waste treatment process
06/11/1996US5525216 Floating inlet tube
06/06/1996WO1996016910A1 Settling basin
06/06/1996WO1996016909A1 Apparatus and process for distributed treatment of wastewater
06/06/1996WO1996016908A2 Method and apparatus for sewage water treatment
06/06/1996WO1996016907A1 Method and plant for the biological oxidation of formaldehyde and phenol in aqueous solution
06/06/1996CA2206744A1 Apparatus and process for distributed treatment of wastewater
06/05/1996EP0714858A2 Bacterium kb2, process for degrading at least one of aromatic componds and haloorganic compounds using microorganism, and process for remedying environment
06/05/1996EP0714857A2 Process for biological water purification with intermittent denitrification
06/05/1996EP0714856A1 Sewage treatment
06/05/1996EP0714694A1 Hose for aerating fluid media
06/05/1996DE4444514A1 Waste water treatment assembly having two or more cascade rotating bio-reactors
06/05/1996DE4443058A1 Waste water biological treatment droplet generator
06/05/1996DE4440464C1 Disposable floating bio:filter preventing odour from large bodies of fluid
06/05/1996DE19527295C1 Process for biological purification of waste water
06/05/1996DE19501260C1 Waste water treatment
06/05/1996CN1123770A Treatment for wastewater from production of fine terephthalic acid
06/05/1996CN1123769A Treatment for organic wastewater containing ammonia from oil refinery
06/05/1996CN1123768A Composition for purifying and mineralizing drinking water
06/04/1996US5523234 Equipment for the anaerobic fermentation of organic materials
06/04/1996US5523003 Method of introducing hydrogen into aqueous liquids without forming bubbles
06/04/1996US5522989 Device for aerating waste water
06/04/1996US5522985 Silage-microbial mat system and method
06/03/1996CA2164371A1 Waste water treatment process
05/1996
05/30/1996WO1996015993A1 Multi-channel denitrification system
05/30/1996WO1996015992A1 Method and apparatus for sewage purification in available microorganism-group fermentation and cycling system
05/30/1996WO1996015991A1 Wastewater treatment method and plant
05/30/1996CA2207181A1 Multi-channel denitrification system
05/29/1996EP0713841A1 Integrated system for treating waste waters
05/29/1996CN1123251A Sewage-treatment method of oxidizing sewage in ditch, capable of alteratively working at four ditches
05/28/1996US5521131 Functional ceramics
05/28/1996US5520856 Gas dissolving
05/28/1996US5520818 Method for effecting gas-liquid contact
05/28/1996US5520816 Zero waste effluent desalination system
05/28/1996US5520812 Process for the biological purification of water
05/28/1996US5520811 Removing metals from water by reaction with phosphate from enzymatically cleaved polyphosphate from microorganisms
05/28/1996US5520810 Water filtering using zebra mussels
05/23/1996WO1996014912A1 Activated sludge degassing process and device
05/23/1996WO1996011072A3 Microbiological parts washer
05/23/1996WO1996009987A3 Process and arrangement for biodegrading pollutants in water
05/23/1996DE4441866A1 Appts. for multistage anaerobic microbial decomposition of organic substrates
05/23/1996DE4424425C1 Waste water treatment for removal of nitrogen cpds.
05/22/1996EP0712809A1 Process for enzymatic pretreatment of drill cuttings
05/22/1996EP0712808A2 Process for decomposing pollutant with microorganism, process for remedying environment with microorganism, and microorganism itself
05/22/1996EP0712381A1 Method of purifying waste water from dairies
05/22/1996EP0618885B1 Biological process for removing bod and nitrogen from wastewater
05/22/1996CN1122781A Dinitrodiazophenol industrial wastewater treatment
05/22/1996CN1122779A Novel biological membrane wastewater treatment
05/22/1996CN1122774A Apparatus and method for treatment of waste water and/or exhaust gases containing fluorine and surface active agents
05/22/1996CN1122648A Activating device of breeding pool
05/21/1996US5518919 Amoebae/bacteria consortia and uses for degrading wastes and contaminants
05/21/1996US5518910 Low density glassy materials for bioremediation supports
05/21/1996US5518726 Hydrocarbon emulsifier or solubilizer composition produced by Flavobacterium FERM BP-4010
05/21/1996US5518620 Apparatus for biological treatment of water and method for biological treatment of water using said apparatus
05/21/1996US5518619 Process for removing sulphur compounds from water
05/21/1996US5518618 System and process for purifying waste water which contains nitrogenous compounds
05/17/1996WO1996014126A1 Launder cover for use in a clarifier tank
05/17/1996WO1996013970A1 Algal turf water purification method
05/15/1996EP0711732A2 Module for a reactor for anaerobic waste water purification
05/15/1996DE4435304C1 Grey water purification and recycling plant which may be installed in habitable buildings
05/15/1996CN1122311A Waste water treatment method using a biological fixed-film system and an apparatus therefor
05/15/1996CN1031792C Aerobic-facultative-anaerobic purifying method and apparatus for high concentration organic waste water
05/14/1996US5516688 Pseudomonas degradation of polychlorinated biphenyls by culture and precipitation, dissolving, dialysis and recovering
05/14/1996US5516687 Degrading organic wastes
05/08/1996EP0710626A2 Process for reducing nitrogen content in waste waters
05/08/1996EP0710218A1 Monitoring biological activity in wastewater
05/08/1996EP0710217A1 Method of aeration of liquids
05/08/1996CN2226602Y Aeration oxygenator flexible pipe
05/08/1996CN2226601Y Hanging type aeration oxygenator
05/07/1996US5514588 Surfactant-nutrients for bioremediation of hydrocarbon contaminated soils and water
05/07/1996US5514352 Apparatus for high speed air oxidation of elemental phosphorous wastes in aqueous medium
05/07/1996US5514285 Aeration system
05/07/1996US5514278 Counterflow microbiological processes
05/07/1996US5514277 Controllably converting influent in anaerobic reactor into water, gas, organics, first anaerobic sludge; degassing; separating liquid reactor effluent from first sludge; converting first sludge to second; directing to reactor
05/07/1996US5514267 Apparatus for dissolving a gas into and mixing the same with a liquid
05/02/1996WO1996012679A1 Process and circulation tank or channel for long-term aeration of waste water cleaned in an activated sludge process
05/01/1996EP0708740A1 Process and apparatus for biological treatment of water
05/01/1996CN2226062Y Apparatus for treatment of life sewage
05/01/1996CN1121703A Method and composition for enhanced bioremediation of petroleum
04/1996
04/30/1996US5512479 Method of degrading volatile organochlorides and remediation thereof
04/30/1996US5512217 Reactor and method of use
04/25/1996WO1996011884A1 Improved wastewater treatment process
04/25/1996DE4437386A1 Verfahren und Umlaufbecken für die Langzeitbelüftung von im Belebungsverfahren gereinigtem Abwasser Procedures and oxidation ditches for the extended aeration activated sludge process in the purified wastewater
04/25/1996CA2188412A1 Improved wastewater treatment process
04/23/1996US5510032 Flowing aqueous solution containing metal ions over porous matrix which has been inoculated with culture of aerobic metal oxidizing bacteria yields water insoluble metal oxides for retention and recovery
04/23/1996US5510022 Pond aerator
04/23/1996US5509955 Treatment of liquids
04/18/1996WO1996011168A1 Biological waste fluid cleaner
04/18/1996WO1996011072A2 Microbiological parts washer
04/18/1996WO1996011071A2 Parts washing system
04/18/1996WO1996011045A2 Fluidized bed filter
04/18/1996DE4436739A1 Standard biological effluent water cleaning processes
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