Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
01/1985
01/22/1985US4495080 Method for preparing a cation exchanger
01/22/1985US4495067 Chemical purification of water; endotoxin filter for lipopolysaccharides
01/22/1985US4495034 Waste effluent treatment and solvent recovery system
01/22/1985US4495031 Treatment of gas condensates
01/22/1985US4494977 Quaternary ammonium salts of α-1,4-thiazine alkanephosphonic acids
01/17/1985WO1985000161A1 Plant for the ozonation of a fluid
01/16/1985EP0131390A2 Zeolites
01/16/1985EP0131119A1 Cross-flow microfiltration lime softener
01/16/1985EP0131116A1 Method and apparatus for the thermal disposal of salt and organically laden liquids
01/16/1985EP0131095A1 Apparatus for the filtration and separation of liquid and gaseous matter
01/15/1985US4493797 Apparatus and method involving supercritical fluid extraction
01/15/1985US4493760 Electrolytic cell having nonporous partition
01/09/1985EP0130943A2 Process for the continuous separation of material from a polluted liquid containing tensides
01/09/1985EP0130580A2 Process for gasifying waste liquids containing organic components, and shaft furnace for carrying out the process
01/09/1985EP0130404A2 Multi-stage heat exchanger
01/08/1985US4492658 Resolution of oil in water emulsions
01/08/1985US4492635 Device for separating solid substances from liquids
01/08/1985US4492618 Method of disinfecting water, in particular swimming pool water
01/08/1985US4492338 Ultrasonic apparatus, particularly for liquid processing
01/08/1985CA1180848A1 Polyquaternary flocculants
01/08/1985CA1180827A1 Polymeric flocculants
01/08/1985CA1180825A1 Use of very high charge cationic polymers in biological sludge dewatering
01/08/1985CA1180536A1 Removal of hydrogen sulfide from fluid streams with minimum production of solids
01/03/1985WO1985000034A1 Water purification apparatus
01/03/1985WO1985000033A1 Chemically active aqueous solution and solid substance containing ferrous ion
01/02/1985EP0053155B1 Method for separating liquids floating at the water surface
01/02/1985CA1180317A Catalytic decomposition of hypochlorite using substituted cobalt oxide spinels
01/01/1985US4491600 Process for concentrating aqueous solutions having temperature-sensitive components
01/01/1985US4491523 Settling, ammonium sulfate, coagulation
01/01/1985US4491520 Filter for water jugs
01/01/1985US4491462 Continuous packed bed wash column
12/1984
12/27/1984EP0129523A1 An electrode chamber unit intended for an electrochemical cell having a porous percolation electrode
12/27/1984EP0129315A1 Two component biocidal system
12/27/1984EP0129260A2 Process and composition for conditioning an aqueous system
12/27/1984EP0129259A1 Activated carbon product
12/27/1984EP0129138A2 A control for a water treatment device and a method for controlling a water treatment device
12/27/1984CA1179973A Circuit for maintaining the strength of an electrostatic field generated in a fluid mixture of varying dielectric strength
12/27/1984CA1179971A Electrical coalescense of liquid emulsions
12/25/1984US4490260 Mechanical conditioning and flocculation of liquids
12/25/1984US4490259 Mixing effluent with conditioning agent and gas bubbles and separation
12/25/1984US4490257 Process for purification of waste waters accumulated from pulp production, particularly from chlorine bleaching of pulp
12/25/1984US4490252 Magnetic treatment
12/25/1984US4490251 Apparatus for recovery of water from dispersions of soot and water
12/25/1984US4490249 Microcomputer controlled demand/scheduled water softener
12/20/1984WO1984004914A1 Device for preventing the formation of fur in water tanks
12/20/1984WO1984004913A1 Method for reducing the hydrocarbon content in air or water
12/20/1984WO1984004912A1 Method for obtaining uranium from sea water
12/19/1984EP0128782A1 Water purification apparatus
12/19/1984EP0128729A2 A device for picking up oil from water and from the surface of water
12/19/1984EP0128363A2 Conductionmetric resin separation
12/19/1984EP0128233A1 Process for preparing products having a specific composition from mineral and medicinal water
12/18/1984US4488971 Process for even division of substances and mixtures of substances in the course of manufacture of pulverulent preparations by chemical reaction
12/18/1984US4488935 Solar/microwave vacuum continuous feed distillation apparatus
12/18/1984CA1179793A1 Removal of anionic compounds from water
12/18/1984CA1179792A1 Method for the reprocessing of condensate from urea production plants
12/18/1984CA1179478A1 Reducing titanium dioxide to produce electrode material and an electrode of such material
12/12/1984EP0127999A1 Liquid phase oxidation
12/12/1984EP0127793A2 Biological flocculation of mineral slimes
12/12/1984EP0127771A2 Quarternary amine carbamate or urea compounds based on isopropenyl-, alpha, alpha-dimethylbenzyl isocyanate
12/12/1984EP0127635A1 Method for eliminating manganiferous scales from watersupply pla nts, treatment solution and utilization thereof
12/11/1984US4487745 Corrosion resistance
12/11/1984US4487708 Reaction product of hydroquinone and amine
12/11/1984US4487698 Removing quaternary ammonium and phosphonim salts with phenolic compounds; phase transfer
12/11/1984US4487694 Skimming spilled oil from water surface
12/11/1984US4487659 Solar distillation apparatus
12/11/1984CA1179276A1 Device for water purification
12/06/1984WO1984004743A1 Cleaning device arranged in front of the inlet to a waterway
12/06/1984WO1984004706A1 Hydrophobic composite, method and composition
12/06/1984WO1984004696A1 Particle adsorption
12/05/1984EP0127604A1 Process for the pre-treatment of sludges for improving their floculation and/or dewatering behaviour in a dewatering apparatus
12/05/1984EP0127240A1 Method of processing waste, and waste dump with a membrane filtration unit
12/05/1984EP0127166A2 Limitless and limited heat sources power plants
12/04/1984US4486481 Trace material recovery from large water masses
12/04/1984US4486314 Process for the handling of waste waters
12/04/1984US4486299 Removing NH3 and H2 S from aqueous streams
12/04/1984CA1178925A2 Apparatus for waste treatment equipment
11/1984
11/28/1984EP0126714A2 Method and apparatus for the treatment of solutions by reverse osmosis
11/28/1984EP0126394A1 Enzymatic removal of aromatic hydroxy compounds and aromatic amines from waste waters
11/27/1984US4485047 Copper and manganese oxidation catalysts recovery from aqueous solutions
11/27/1984US4485018 Adding ferric chloride to coagulate and flocculate suspended particles
11/27/1984US4485012 Adjustable magnetic water treatment system
11/27/1984US4484991 Chlorine generator and method of generating chlorine gas
11/27/1984CA1178720A1 Continuous polymer feed system for a waste water treatment plant
11/27/1984CA1178554A1 System of ionized oxygen allotrope gas water purification and method and apparatus therefor
11/27/1984CA1178541A1 Water treatment and storage system
11/20/1984US4483772 Clarification, fictration
11/20/1984CA1178383A1 Sequestering of ca su xx and me su xx in aqueous media using zeolite mixtures
11/14/1984EP0125221A1 Stable solutions of basic aluminium sulphate containing polynucleate aluminium hydroxide sulphate complexes
11/14/1984EP0125192A1 Plant and method for treating swimming pool water by means of a membrane separation apparatus
11/14/1984EP0125162A1 Apparatus for dissolving ozone in a fluid
11/14/1984EP0124850A1 Use of liquid neutral one-component coagulants for the coagulation of varnishes and coating materials
11/14/1984EP0124644A2 Method and apparatus for removing oil from water
11/14/1984EP0124579A1 Magnetic separation using chelated magnetic ions
11/13/1984US4482809 Ultraviolet fluid purifying device
11/13/1984US4482462 Mechanical devices for chemical treatment of fluids
11/13/1984US4482459 Continuous process for the reclamation of waste drilling fluids
11/13/1984US4482432 Apparatus for solid/liquid separation by vaporization and condensation
11/13/1984US4482431 Distillation apparatus with a liquid-vapor separating device having three chambers
11/13/1984CA1177781A1 Magnetic device for the treatment of calcareous fluids
11/13/1984CA1177746A1 Water evaporation process