Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
01/1997
01/28/1997US5598316 Method for reducing static electrical charges by application of ozonated water
01/28/1997US5597728 Methods for biodegradation separation of natural fibers to release particulate contamination
01/28/1997US5597539 Catalytic process
01/28/1997US5597510 Coagulants containing basic aluminum polychloride or polychlorosulfatean iron compound, and an alkali or alkyline earth metall halide
01/28/1997US5597493 Device and method to separate the components in mixture of non-miscible liquids
01/28/1997US5597490 Flocculation
01/28/1997US5597489 Radial flow through compartment packed with contaminant removing media between inner and outer screens
01/28/1997US5597488 Method for preparing various thermal waters
01/28/1997US5597487 Water purification and dispensing system
01/28/1997US5597484 Metal removal from aqueous solution
01/28/1997US5597482 Water purification apparatus
01/28/1997US5597479 Electro-coalescence/magnetic separation (ECMS) system and components for removal of contaminants from water streams, including desalinization
01/28/1997US5597477 Sewage effluent disposal system having sparger in holding tank
01/28/1997US5597402 Self-regulated biological scrubber and/or gas stripper for the treatment of fluid streams
01/23/1997WO1997002216A1 Treatment of aqueous systems using a chemically modified tannin
01/23/1997WO1997002099A1 Process for cleaning factory equipment with integrated prerinse
01/23/1997WO1997002080A1 A device for the separation of oil from water
01/23/1997WO1997002079A1 Water condensing device
01/23/1997DE19526420A1 Air washing assembly with water acidity value continually compared with target value
01/23/1997DE19525920A1 Egg-shaped cleaning unit and labyrinth processing gases or fluids
01/23/1997CA2602652A1 Treatment of aqueous systems using a chemically modified tannin
01/23/1997CA2226257A1 A process for cleaning processing equipment with integrated prerinsing
01/22/1997EP0754941A1 Apparatus for determining properties of slurry materials and sludge treating process
01/22/1997EP0754799A2 Leaching process
01/22/1997EP0754495A1 Method and apparatus to sense changes in the state of a resin bed
01/22/1997EP0754167A1 Process and installation for the targeted formation of germs or crystals
01/22/1997EP0754166A1 Method for a waste water treatment plant
01/22/1997EP0754165A1 Microfiltration enhanced reverse osmosis for water treatment
01/22/1997EP0754164A1 Method and equipment for treatment of a liquid flow to be cleaned and passed into a flotation plant or equivalent
01/22/1997EP0687198B1 Method of removing oxygen, nitrites and/or nitrates from water
01/22/1997CN2245609Y Efficient water purifier
01/22/1997CN2245608Y Multipolar magnetization cup
01/22/1997CN2245483Y Drinking water terminal filter
01/22/1997CN1140695A Electromagnetic de-ionizing instrument
01/22/1997CN1140694A Ozone treatment apparatus for purification treatment
01/21/1997US5595663 Evaporation, purification, absorption
01/21/1997US5595661 Process for recover halocarbons from liquid waste slurries
01/21/1997US5595659 Filter material for removing chlorine from cold water in preparing a human-consumable beverage
01/21/1997US5595586 Method for recovery of volatile organic compounds
01/16/1997WO1997001512A1 Process for removing unwanted material from wanted material
01/16/1997DE19527252A1 Verfahren und Vorrichtung zum Entkalken von Wasser Method and apparatus for descaling water
01/15/1997EP0753486A1 Process for the treatment by electrolysis of a liquid effluent containing dissolved metals and application in treating effluents containing cerium
01/15/1997EP0753196A1 Method and device for disposing of a solution containing an organic acid
01/15/1997EP0753122A1 Device for superheating steam
01/15/1997EP0752976A1 Oxidation process
01/15/1997CN2245059Y Far infrared ceramic water purifier
01/15/1997CN2245056Y Device for preparation of ozone water and treatment
01/15/1997CN1140331A Cleaning method and system of semiconductor substrate and production method of cleaning liquid
01/14/1997US5594096 Polymeric dithiocarbamic acid salt compositions and methods of use
01/14/1997US5593681 Glycine anhydride dimethylol as a biocide and preservative
01/14/1997US5593636 Method for thermal control of macrofouling
01/14/1997US5593599 Method for inhibiting microbial adhesion on surfaces
01/14/1997US5593598 Oxidation process for cleaning solutions used in cleaning
01/14/1997US5593593 Liquid emulsion membrane
01/14/1997US5593592 Adding low concentration of aluminum hydroxide to raise bacteria to absorb and decompose unpleasant odor;flocculation
01/14/1997US5593591 Polyacrylamide flocculant
01/14/1997US5593563 Electrodeionization process for purifying a liquid
01/14/1997US5593554 Electrolytic ionized water producing apparatus
01/09/1997WO1997000834A1 Enzymatic method for the oxidative breakdown of fluorescent compounds
01/09/1997WO1997000830A1 Electrolysis of electroactive species using pulsed current
01/09/1997WO1997000770A1 Composite particulate material and process for preparing same
01/09/1997WO1997000722A1 Process and apparatus for the magnetic treatment of substances
01/09/1997WO1997000719A1 Method for removing contaminants from water using membrane filtration in combination with particle adsorption to reduce fouling
01/09/1997WO1997000714A1 Liquid medium extraction purification method
01/09/1997DE19608695A1 Ozonreinigungsvorrichtung Ozone cleaning device
01/09/1997DE19524867A1 Verzweigte Polyammoniumverbindungen mit hohem Molekulargewicht und Verfahren zu ihrer Herstellung Branched polyammonium compounds with high molecular weight and processes for their preparation
01/09/1997DE19524211A1 Anlagen-Reinigungsverfahren mit integrierter Vorspülung Conditioner cleaning method with integrated pre-purge
01/09/1997DE19523389A1 Enzymatische Methode zum oxidativen Abbau von fluoreszierenden Verbindungen Enzymatic method for the oxidative degradation of fluorescent compounds
01/08/1997EP0752459A2 Process and device for separating a hydropholic liquide fraction of an aqueous suspension
01/08/1997EP0752391A2 Water for medical treatment, production method thereof and dialysis apparatus using same
01/08/1997EP0751914A1 Method and facility for treating effluents loaded with organic material, particularly by wet oxidation and with internal solid residue recycling, and purification facility therefor
01/08/1997EP0751819A1 A vessel for mixing or separating flowing media
01/08/1997EP0526462B1 Method for the base-catalyzed decomposition of halogenated and non-halogenated organic compounds in a contaminated medium
01/08/1997CN2244739Y Display and cut-off apparatus for treating total flow and flow
01/08/1997CN2244558Y Combined multi-functional water purifier
01/08/1997CN1139913A Water treatment method and apparatus
01/08/1997CN1139742A Self-energizing fluid treatment apparatus employing external electrodes
01/08/1997CN1139649A Treatment method for the Waste liquid in production of dicyclohexyl diimide carhide (DDC)
01/08/1997CN1139585A Liquid separator and fine filter
01/07/1997US5591692 Disinfection with mixture of chlorine- and glycoluril-sources
01/07/1997US5591349 Microorganism removing method
01/07/1997US5591347 Single cell gas flotation separator with filter media
01/07/1997US5591344 Hot water disinfection of dialysis machines, including the extracorporeal circuit thereof
01/07/1997US5591332 Filter assembly with automatic shut-off and quick-connect filter cartridge
01/07/1997US5591317 Electrostatic device for water treatment
01/07/1997US5591310 Distillation
01/07/1997US5590687 Control mechanism for a water conditioning system
01/03/1997WO1997000405A1 Low capacity chlorine gas feed system
01/03/1997WO1997000137A1 Apparatus for solid particle reduction
01/03/1997WO1996038219A3 Process and device for recycling water paints
01/03/1997WO1996037283A3 Method and device for delivering a substance
01/03/1997CA2224431A1 Apparatus for solid particle reduction
01/03/1997CA2222432A1 Low capacity chlorine gas feed system
01/02/1997EP0751097A2 Water treatment system
01/02/1997EP0751096A2 Electro-physical apparatus
01/02/1997DE19527664C1 Removing pollutants, e.g. heavy metal isotopes, from flowing ground-water
01/02/1997DE19523113A1 Appts. for sepg. solids from liquids comprises helical screw conveyor assembly
01/02/1997DE19522240A1 Water treatment assembly
01/02/1997DE19522239A1 Desalination assembly has transparent outer and non-translucent inner concentric pipes
01/02/1997DE19522234A1 Liq. processing conduit heat exchanger medium circumvents main heater