Patents
Sitemap › C02 - Treatment of water, waste water, sewage, or sludge › C02F - Treatment of water, waste water, sewage, or sludge › C02F 1 - Treatment of water, waste water, or sewage
Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
05/1980
05/27/1980US4204914 Apparatus for desalinating water
05/27/1980US4204801 Sewage pump assembly
05/27/1980CA1078304A1 Fluid distributor
05/27/1980CA1078164A1 Conversion of radioactive ferrocyanide compounds to immobile glasses
05/27/1980CA1078117A1 Process for asymmetrical selectively permeable cellulose triacetate membranes
05/20/1980US4203952 Process for the removal of heavy metals and transition metals other than platinum from solution
05/20/1980US4203868 Heating rubber or coal with sulfur followed by alkaline hydrolysis
05/20/1980US4203837 Process for removal of discrete particulates and solutes from liquids by foam flotation
05/20/1980US4203835 Waste water treatment method using activated carbon
05/20/1980US4203806 Apparatus for desalinating water
05/20/1980US4203805 Apparatus for desalinating water
05/20/1980CA1078083A1 Method of treating waste waters containing solid-phase hard-soluble compounds
05/20/1980CA1078082A1 Apparatus for clarification of waste water operating on dissolved air flotation process
05/20/1980CA1077859A1 Filtration apparatus
05/20/1980CA1077798A1 Inorganic flocculating composition and method for its preparation
05/14/1980EP0010984A2 Layered membrane assembly and electrochemical processes and electrochemical cell utilizing same
05/14/1980EP0010969A1 Liquid treating method and apparatus
05/14/1980EP0010713A1 Process for the purification of waste water containing organic compounds of sulfur and phosphor
05/14/1980EP0010608A1 Method and apparatus for recovering dissolved, suspended or chemically bonded materials from water
05/14/1980EP0010562A1 Electrochemical process
05/13/1980US4202858 Copper piep in a water container
05/13/1980US4202773 Apparatus for the dewatering of sludge
05/13/1980US4202770 Apparatus for purification of waste water by means of active carbon
05/13/1980US4202767 Process and device for the purification of waste water by means of electroflotation
05/13/1980US4202766 Process for removing oil particles from waste water containing the same
05/13/1980US4202754 Combination electrolytic and electrostatic treater
05/13/1980US4202751 Prevention of corrosion of copper alloy parts and hydrogen absorptition in titanium parts
05/13/1980US4202745 Method for treating a desizing waste stream
05/13/1980US4202738 From low concentration of halogen salt
05/13/1980US4202736 Process and apparatus for the thorough purification of water and the highly purified water obtained thereby
05/13/1980US4202371 System for pollution suppression
05/13/1980US4202291 Method for keeping aquatic animals alive over long period of time
05/13/1980CA1077637A1 Flocculating agent comprising water-in-oil emulsion of h-active polymer carrying formaldehyde and amine radicals
05/13/1980CA1077390A1 Apparatus for aerating liquids
05/13/1980CA1077241A1 Use of liquid membrane systems for selective ion transfer
05/06/1980US4201918 Apparatus for the electron beam irradiation of a flowable material, more particularly sewage sludge
05/06/1980US4201916 Ultraviolet radiation sensor for use in liquid purification system
05/06/1980US4201867 Using packed mixing columns
05/06/1980US4201831 Encapsulated with carbon
05/06/1980US4201827 Magnetically supported particle matrix for accumulating or affecting substances dissolved or finely dispersed in a liquid or gas
05/06/1980US4201668 Treatment of sludge comprising biological aggregate
05/06/1980US4201667 Process for removing arsenic from aqueous mediums
05/06/1980US4201666 Treating pulp-and-paper mill streams
05/06/1980US4201665 Use of nonstoichiometric carbon-sulfur compounds to remove components from liquids
05/06/1980US4201651 Electrolysis cell
05/06/1980US4201643 Reducing chloride ion concentration in water, electrolytic cell
05/06/1980US4201638 Triple ions of 1,2- and 1,4-dicarbonyl compounds and analogs thereof containing nitrogen and containing two strategic oxygen or nitrogen groups and process for producing same
05/06/1980US4201636 Recovering group 8 metal hydroxides and hydrated oxides from effluents; adjust ph, filtration, heating, and electrolysis
05/06/1980CA1077177A1 Method and apparatus for ammonia removal from wastewaters
05/06/1980CA1076965A1 Device for discharging floating matter from a supernatant layer
05/06/1980CA1076815A1 Method for removing arsenic from copper and/or nickel bearing aqueous acidic solutions by solvent extraction
05/01/1980WO1980000833A1 Desalination plant
05/01/1980WO1980000832A1 Treatment of sea discharged sewage
04/1980
04/30/1980EP0010512A1 Method to carry off gases
04/30/1980EP0010381A1 Regeneration of activated carbon
04/30/1980EP0010337A1 A plant for gathering and purifying water and waste water
04/30/1980EP0010243A1 Process for treating biomasses; modified biomasses and their application
04/29/1980US4200695 Micro-spherical beads of crosslinked copolymers
04/29/1980US4200679 Micro-bits of expanded flexible polyurethanes
04/29/1980US4200646 Method of controlling the growth of microorganisms using nitroalkyl thiocyanates
04/29/1980US4200634 Water treatment
04/29/1980US4200528 Removing metal ions from aqueous effluents
04/29/1980US4200527 Treating chrome tanning bath recycle stream
04/29/1980US4200526 Process for treating waste water
04/29/1980US4200524 Bio-surface separation process
04/29/1980US4200505 Electrochemical conversion of organic material
04/29/1980US4200497 Sparged air distilled water recovery system
04/29/1980US4199961 Mechanical energy produced by a turbine drives a refrigeration compressor
04/29/1980CA1076722A1 Apparatus for treatment of water by flocculation and decantation
04/29/1980CA1076721A1 Process for oxidation treatment of fe2+ in waste water
04/29/1980CA1076363A1 Method for the removal of mercury from sludges containing same
04/29/1980CA1076340A1 Catalyst for sulfite scavengers
04/22/1980US4199600 Preservation of aqueous systems with α-halo-β-aminocrotonic acid esters
04/22/1980US4199485 Method of producing graft copolymers of cellulose with vinylpyridines
04/22/1980US4199449 Removal of bacteria
04/22/1980US4199430 Seal construction for electrostatic fluid treaters
04/22/1980US4199429 Pilot light assembly for electrostatic fluid treaters
04/22/1980US4199427 Electrolytic treater
04/22/1980US4199407 Apparatus for desalinating water
04/22/1980US4199406 Apparatus for desalinating water
04/22/1980US4199001 Chemical feeder
04/22/1980CA1076276A1 Process for reducing the mercury content of industrial waste waters
04/22/1980CA1076275A1 Method of clarifying and removing water-solids suspensions
04/22/1980CA1076273A1 Oxidation of waste water containing sulphide, sulphite and/or thiosulphate
04/22/1980CA1076096A1 Process for producing aluminum silicates
04/22/1980CA1076019A1 Process for removing waste water from hardening and galvanizing shops
04/16/1980EP0010012A1 Cleaning agent for dispersing hydrocarbons in a marine environment
04/16/1980EP0009738A1 Filtration method for separating solid, sludgy and dissolved substances from waste water or from sludge resulting from the cleaning of waste water
04/16/1980EP0009718A1 Precipitation agent for removing phosphates from waste water, its use therefor and a process for removing phosphates from waste water
04/16/1980EP0009480A1 Process and reactor for producing a treating aqueous solution containing at least hydrogenoperoxide ions and hydroxyl ions according to predetermined concentrations and use of the reactor.
04/15/1980US4198297 Removal of trace copper ions from water
04/15/1980US4198296 Process and apparatus for treating drinking water
04/15/1980US4198294 Water purification system
04/15/1980CA1075637A1 Electrostatic water treatment
04/15/1980CA1075636A1 Recovery of zinc from residual solutions of electroplating
04/15/1980CA1075635A1 Metals
04/15/1980CA1075559A1 Method of producing phosphate removing materials
04/15/1980CA1075442A1 Combined process for the treatment of waste solutions and sulfur containing gases
04/15/1980CA1075440A1 Process for removing heavy metals from fluid media
04/15/1980CA1075410A1 Chemical recovery utilizing evaporation steam and exchangers in steam stripping system
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