Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
01/1989
01/24/1989CA1249228A1 Sequencing batch reactor decanter systems
01/19/1989DE3808088A1 Process for separating off heavy metal ions from industrial waste waters
01/18/1989CN2031000U 滤过式灭菌器 Filtration type sterilizer
01/18/1989CN2030999U Multi-purpose magnetizer
01/18/1989CN1030395A Method of and arrangement for purifying contaminated water
01/17/1989US4798707 For swimming pool
01/17/1989US4798702 Sterilizer unit for fluid media and process
01/17/1989US4798672 Charcoal water filter/strainer
01/17/1989US4798671 Device for inward suction of liquid
01/17/1989US4798669 System for treating water with ozone
01/17/1989US4798475 Device for providing lime to acidulated waters
01/17/1989CA1249081A1 Water treatment
01/17/1989CA1248879A1 Filtering unit
01/17/1989CA1248733A1 Manufacture of basic aluminum chlorosulphates
01/12/1989WO1989000150A1 Method and apparatus for purification of liquid mediums, especially waste water
01/12/1989WO1989000149A1 Effluent treatment of waste water
01/12/1989WO1989000081A1 Adsorbent
01/12/1989DE3820092A1 Process for treating liquid radioactive waste
01/12/1989DE3722227A1 Apparatus for enriching water with oxygen
01/12/1989DE3721293A1 Process for recovering drycleaning solvent residues dissolved and/or emulsified/dispersed in the contact water and contained in the waste air
01/12/1989DE3720917A1 Apparatus for detoxifying large amounts of water with the aid of activated charcoal
01/11/1989EP0298592A1 Process for recovering regenerated adsorbent particles and separating ash therefrom
01/11/1989EP0298253A2 Method of separating heavy metal ions from industrial-waste waters
01/11/1989CN2030594U Floating type portable solar-energy water purifier
01/11/1989CN1030264A System for electrolytic treatment of liquid
01/11/1989CN1030219A Method of treatment of sludge containing chrome with a valency of three
01/11/1989CN1030198A Preparation technology of iodine dibromide compound anion resin and its intermediate iodine bromide
01/10/1989US4797211 Cross flow microfilter
01/10/1989US4797156 Metal treated by a solution containing ferric ferrous salt
01/10/1989CA1248646A1 Process for removing of heavy metals from water in particular from waste water
01/10/1989CA1248645A1 Deoxygenation process and apparatus
01/10/1989CA1248418A1 Polymeric microfibrous filter sheet, preparation and use
01/05/1989DE3721233A1 Process for separating off calcium chloride from scrubbing waters of the flue gas scrubber
01/05/1989DE3721141A1 Process for mercury recovery from mercury-containing scrubbing waters of incineration plants
01/05/1989DE3721072A1 Apparatus for sterilising, purifying and/or desalting primary water
01/05/1989DE3708974A1 Apparatus for the purification of bodies of flowing water
01/04/1989EP0297916A1 Control of corrosion in aqueous systems
01/04/1989EP0297738A1 A method for the treatment of waste matter
01/04/1989EP0297417A1 Process and plant for the removal of contaminants from soil
01/04/1989EP0297222A1 Process for oxidizing a cyanide compound
01/04/1989EP0297200A1 Process and apparatus for the direct recovery of water by condensation of atmospheric water vapour, using wind and/or solar energy
01/04/1989CN2030197U Water generator
01/04/1989CN2030196U Health drinker
01/04/1989CN2030050U Water-magnetized kettle
01/04/1989CN1030066A Process and equipments for treating waste liquor of red nitric acid
01/03/1989US4796042 Printing plate processor having recirculating water wash reclamation
01/03/1989US4795713 Auto-digestor
01/03/1989US4795585 Polyvinyl alcohol containing polyaluminum chloride flocculants
01/03/1989US4795568 Oxidative evaporation process and apparatus
01/03/1989US4795564 Ion exchanging
01/03/1989US4795563 Nitrate adsorption unit
01/03/1989US4795557 Apparatus for gas transfer and flotation for treating water to be purified
01/03/1989US4795532 Aftertreatment method and apparatus for distilled water
01/03/1989CA1248247A1 Method for removing heavy metals from aqueous solutions by coprecipitation
12/1988
12/29/1988WO1988010277A1 Process for preparing cationic, water-soluble resin and water-treating agent containing said resin
12/29/1988WO1988010239A1 Process and apparatus for producing drinking water
12/28/1988EP0296441A2 Use of insoluble, polyfunctional quaternary ammonium compounds for the adsorptive binding of microorganisms
12/28/1988CN88219157U Electrostatic scale breaker
12/28/1988CN88211353U Small type water magnetizer
12/28/1988CA1247759A Sewage sludge treatment apparatus and process
12/28/1988CA1247329A Fluid treatment process and apparatus
12/27/1988US4793935 Method of removing cyanuric acid from bather water
12/27/1988US4793931 Process for treatment of organic contaminants in solid or liquid phase wastes
12/27/1988US4793927 Method of treating sewage
12/27/1988US4793909 Electrolytic chlorine generator with salt spacer
12/27/1988US4793714 Apparatus for mixing fluids
12/22/1988DE3719441A1 Method for breaking down aggregated organic and mineral constituents in suspensions, such as sludges and wastewaters, and apparatus for carrying out the method
12/22/1988DE3719233A1 Selbsttragender filterkoerper Self-supporting filterkoerper
12/22/1988DE3718856A1 Water treatment plant for water contaminated with environmentally harmful organic substances, such as chlorinated hydrocarbons
12/22/1988DE3718583A1 Process for recovering silver from fixing salt solutions by sulphide precipitation
12/21/1988EP0296043A1 Heat-welded or adhesive-bonded unitary construction cartridge for the production of ultrapure water
12/21/1988EP0295722A1 Method and apparatus for the pollution free disposal of waters produced when crushing olives
12/21/1988EP0295696A1 Method for removing organic dye stuffs and heavy metals from wastewater
12/21/1988EP0295614A1 Acidized fracturing fluids containing high molecular weight poly(vinylamines) for enhanced oil recovery
12/21/1988EP0295463A2 Magnetic water treatment device
12/21/1988EP0295323A1 Process and apparatus for thermal treatment
12/21/1988CN88105862A Resin adsorption treatment of atmospheric pressure stationary bed gas and coke-oven waste water
12/21/1988CN88100785A Gel-type chelating resins and process for removal of multi-valent, alkaline earth or heavy metal cations from solutions
12/20/1988US4792407 Exposing to combination of ozone, hydrogen peroxide, ultraviolet radiation
12/20/1988US4792406 Mixing with cationic amine salt
12/20/1988US4792405 Removal of hydrogen selenide liquids
12/20/1988US4792385 Electrolytic decontamination apparatus and encapsulation process
12/20/1988US4792364 Melamine-formaldehyde resin, polyvinyl alcohol, styrene-acrylates copolymer blends
12/20/1988US4792284 Device for creating and exploiting a pressure difference and the technical application thereof
12/20/1988CA1247264A1 Chlorine injector for treatment of effluent
12/20/1988CA1247015A1 Water-separating agent
12/20/1988CA1246984A1 Evaporation method and apparatus
12/20/1988CA1246834A1 Recovery of sulfur from sulfur froth
12/15/1988WO1988009773A1 Device for treating liquids
12/15/1988WO1988009772A1 System for electrolytic treatment of liquid
12/15/1988WO1988009771A1 Water purification system
12/15/1988WO1988009770A1 Self-contained filter unit
12/15/1988WO1988009740A1 Sewage treatment plant
12/15/1988WO1988009698A1 Liquid separator
12/15/1988WO1988009693A1 Reverse osmosis apparatus
12/15/1988DE3718661A1 Aqueous methylene bisthiocyanate dispersion
12/14/1988EP0294527A1 Faucet mounted purifier
12/14/1988EP0205429B1 Treatment of wash water in paint spray booths
12/14/1988CN88201669U Biting type water filter cap with tower shape
12/14/1988CN88103696A Treating apparatus and technology for sodium-ion exchanging water without electric consuming