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)
03/1995
03/29/1995EP0645177A1 Device for introducing gas in a liquid
03/29/1995EP0644859A1 Process for the purification of polluted water.
03/29/1995EP0644858A1 System and process for purifying waste water which contains nitrogenous compounds.
03/29/1995EP0644857A1 Treatment installation and method for treating water and/or gases.
03/29/1995EP0644856A1 Method for aiding microbial degradation of spilled oil
03/29/1995EP0625126A4 Bioremediation of contaminated groundwater.
03/28/1995US5401412 Method and apparatus for monitoring biological activity in wastewater and controlling the treatment thereof
03/28/1995US5401400 Membrane bioreactor system for treating synthetic metal-working fluids and oil-based products
03/28/1995US5401398 Media for rotating biological contactor
03/28/1995CA1335004C Cassette for use in activated-sludge treatment of sewage or industrial waste water
03/23/1995WO1995007862A1 Mixed liquor wasting system and method
03/23/1995WO1995007861A1 Purification plant for removing of nutrients from sewage
03/23/1995DE4331505A1 Method and device for detecting and controlling solids concentration in an activated sludge reservoir of a biological clarification (sewage treatment) plant
03/23/1995CA2171941A1 Mixed liquor wasting system and method
03/22/1995EP0643766A1 Improved mixture of nutrients for the bioremediation of polluted soils and waters
03/22/1995EP0643676A1 Biological and chemical single step purification of discharged water
03/22/1995EP0643672A1 Method of controlling wastewater purification plants using quality evaluation of measuring data.
03/22/1995EP0626877A4 Decanting apparatus.
03/22/1995CN2192619Y Two-spiral blast aeration tank
03/22/1995CN2192618Y Multifunction rotary filter
03/22/1995CN2192617Y Combined-build type two-spiral blast aeration tank
03/21/1995US5399495 Microbial degradation of chemical pollutants
03/21/1995US5399267 Liquid treatment system with air emission control
03/21/1995US5399266 Microbial media and waste water treatment method using same
03/16/1995DE4403716C1 Process and reactor for the microbiological treatment of water having a high oxygen demand
03/15/1995EP0643018A2 Process and apparatus for clarifying waste waters according to the aerobic/facultative principle
03/15/1995EP0642472A1 Process for removing sulphur compounds from water
03/15/1995EP0642471A1 Method for fermentation of especially highly viscous substrates and means for blending air into the substrate
03/15/1995EP0642470A1 Biological waste water treatment
03/15/1995EP0642469A1 Method of controlling wastewater purification plants using multiple control functions.
03/15/1995EP0642373A1 Method and apparatus for separating gaseous bubbles and sand fro m a liquid flow
03/15/1995EP0579623B1 Process for cleaning exhaust air
03/15/1995EP0536241B1 Fluid supply device
03/15/1995CN1100070A Treatment of sewage
03/15/1995CN1100069A Improved effective tank for purification of water for cattle drinking in which
03/15/1995CN1027885C Method for treating waste water from catalytic cracking unit.
03/15/1995CN1027884C Float aerator
03/14/1995US5397755 Low density glassy materials for bioremediation supports
03/14/1995US5397474 Treatment of wastes
03/14/1995US5397473 Biological treatment method for water
03/14/1995US5397001 Apparatus for the separation of hydrophobic and hydrophilic particles using microbubble column flotation together with a process and apparatus for generation of microbubbles
03/14/1995CA1334771C Bioreactor
03/09/1995WO1995006715A1 Method for the rehabilitation of soil contaminated by hydrocarbons and other biodegradable substances
03/09/1995WO1995006621A1 Method and device for optimizing gas flow/transfer in shallow basins
03/09/1995DE4427065A1 Use of a process for the biological denitrification of water
03/09/1995DE4330207A1 Process and apparatus for aerating and mixing liquid in a tank
03/08/1995EP0641744A1 Purifying apparatus
03/08/1995EP0641743A1 Treatment of pulp and paper wastewater with reducing agent and a polymer for color removal
03/08/1995EP0641296A1 Process for degrading organic matter
03/08/1995EP0641295A1 Device for the purification of waste water.
03/07/1995US5395808 Inorganic supports for bioremediation
03/07/1995US5395530 Adding biocide and enzyme
03/07/1995US5395529 Apparatus for the treatment of sewage
03/07/1995US5395528 Sewage treatment, bacteria
03/07/1995US5395527 Process and apparatus for treating wastewater in a dynamic, bio sequenced manner
03/02/1995WO1995006011A1 Method of incinerating sludge resulting from waste-water treatment
03/02/1995WO1995006010A1 Biological aerated filter
03/02/1995WO1995006009A1 Device for purifying waste water or ground water and use thereof
03/02/1995DE4430371A1 Water-treatment ceramic and process for its production
03/02/1995DE4339630C1 Fixed-bed process for wastewater purification
03/02/1995DE4338480A1 Packing material for trickling filters for treating fluids and process for the production of the same
03/02/1995DE4335574A1 Process for removing pollutant deposits in liquid, solid-liquid and solid, water-permeable surroundings
03/02/1995DE4329239A1 Process and apparatus for biological waste water purification
03/02/1995CA2170372A1 Device for purifying waste water or ground water, and its use
03/02/1995CA2131240A1 Treatment of pulp and paper wastewater with reducing agent and a polymer for color removal
03/01/1995EP0640568A1 Improved process for waste water treatment by removal of sodium sulfate
03/01/1995EP0640567A2 Packing for trickling filters for fluid-treatment and process trickling for manufacturing it
03/01/1995EP0640123A1 Bioreactor system
03/01/1995EP0640059A1 Biogas reactor.
03/01/1995EP0640037A1 Corrugated sheet assembly
03/01/1995CN1099356A Hydrated granular carrier for biological treatment apparatus and method for producing same
03/01/1995CA2131125A1 Process for waste water treatment by removal of sodium sulfate
02/1995
02/28/1995US5393428 Process for treating waste water containing chlorinated organic compounds from production of epichlorohydrin
02/28/1995US5393427 Process for the biological treatment of wastewater
02/28/1995US5393426 Method for removing soluble metals from an aqueous phase
02/28/1995US5393417 Water remediation and purification system and method
02/23/1995WO1995005347A1 Method and installation for treating the liquid fraction from manure
02/23/1995DE4327727A1 Device for generating a recirculating flow
02/22/1995EP0639536A1 Septic tank
02/22/1995EP0639535A1 Effluent treatment
02/22/1995EP0639163A1 Turbo oxidation system (tos) for "wet combustion" of cod-containing liquids and for cod-reduction by enzymes.
02/22/1995EP0639160A1 Method and apparatus for dissolving a gas into and mixing the same with a liquid
02/22/1995EP0639159A1 Apparatus and process for removal of pollutants from waste water.
02/22/1995CN2190111Y Adjustable high-strength support
02/22/1995CN1099011A System for processing organic waste water
02/21/1995US5391294 Particle separator device with circulation of fluid, with double effect of extraction
02/16/1995WO1995000208A3 A chemical-biological process for dehalogenation of halogenated organic compounds
02/16/1995DE4343767C1 Process for decreasing the pollutant content and for reducing the ammonium content and the COD and BOD5 values in composting waste water
02/16/1995DE4327526A1 Air purification plant
02/15/1995CN2189606Y Under-water earation device
02/15/1995CN1098703A Phosphorus elimination method for city sewage
02/14/1995US5389356 Compounds and methods for generating oxygen free radicals used in general oxidation and reduction reactions
02/14/1995US5389259 Preparation treatment of volatile wastewater components
02/14/1995US5389257 Method for treating water
02/14/1995US5389248 Bioreactor for biological treatment of contaminated water
02/14/1995US5389247 Waste water treatment process
02/14/1995US5388316 Biofilm support media assembly apparatus and method
02/14/1995CA2022097C Method of pre-treating peat for use in biofilters for wastewater treatment and use thereof
02/09/1995WO1995003880A1 Improved fluid inductor
02/09/1995DE4326603A1 Sewage treatment plant with activation tank
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