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)
10/1980
10/28/1980US4230578 Sewage effluent volume control and alarm arrangement for pressurized sewage disposal system
10/28/1980US4230571 Ozone/ultraviolet water purification
10/28/1980US4230569 Method and apparatus for supplying dissolved chemicals into water
10/28/1980US4230568 Adding calcium-containing cement, aluminum silicate; allowing to set, addition of active carbon
10/28/1980US4230567 Process for working up effluents containing nitro-hydroxy-aromatic compounds
10/28/1980US4230566 Prereacting monohydric alcohol with polyisocyanate
10/28/1980US4230565 Method for purifying phosphate containing waste waters
10/28/1980US4230562 Method for depolluting fresh water and salt water bodies from crude oil, petroleum products and their derivatives
10/28/1980US4230531 Wind powered solar still
10/28/1980US4230530 Self-cleaning water distiller with intermittent overflow
10/28/1980CA1088699A1 Polysaccharide-containing adsorbent
10/28/1980CA1088275A1 Removal of selenium from urethane solutions
10/21/1980US4229389 Gas diffuser, aerator, or sparger apparatus
10/21/1980US4229300 Process for the removal of radioactive iodine from a liquid, especially urine, and apparatus to carry out the process
10/21/1980US4229292 Countercurrent liquid-solid contacting apparatus
10/21/1980US4229272 Chlorine generator and method
10/21/1980US4229202 Wastewater treatment with ultraviolet disinfection and increased capacity
10/21/1980US4228614 Floating pesticide dispenser
10/21/1980CA1088231A1 Process for purifying waste water containing phenol and phenol formaldehyde
10/21/1980CA1088230A1 Liquid aeration to reduce biological oxygen demand
10/21/1980CA1088229A1 Backflushing method and system
10/21/1980CA1088228A1 Aeration method and system
10/21/1980CA1088227A1 Method and apparatus for treating waste matter
10/21/1980CA1087998A1 Pure distillate recovery system
10/21/1980CA1087864A1 Macroreticular ion exchange resins, their method of preparation and use
10/15/1980EP0017634A1 A solid flocculating agent, a method for its manufacture and its use
10/15/1980EP0017611A1 Method of combating pests and means therefor
10/15/1980EP0016815A1 Method for de-salting sea water by means of thermal exchanges of a gas compressor and a combustion engine
10/14/1980US4228014 Apparatus for desalination and purification of water by reverse osmosis and ultrafiltration
10/14/1980US4228013 Ion exchanging material, periodic flow reversal
10/14/1980US4228003 Method of removing phosphates from waste water
10/14/1980US4228000 Water treatment apparatus with means for automatic disinfection thereof
10/14/1980US4227970 Solar distillation apparatus
10/14/1980US4227373 Waste heat recovery cycle for producing power and fresh water
10/14/1980CA1087397A1 Scrubbing of ammonia from liquid ion exchange reagents
10/07/1980US4226720 Unitary package for water treatment for attachment to home hot water heater
10/07/1980US4226719 Treating device for large bodies of water
10/07/1980US4226718 Coagulation
10/07/1980US4226710 Process for purifying water containing fluoride ion
10/07/1980US4226695 Electrochemical processing system
10/07/1980US4226685 Electrolytic treatment of plating wastes
10/07/1980US4226678 Method and apparatus for the decontamination of a liquid containing contaminants
10/07/1980US4226673 Color removal from paper and pulp mill aqueous effluents
10/07/1980US4226600 Mercury contamination indicator and decontamination aid
10/07/1980CA1087330A1 Waste treatment process
10/07/1980CA1087329A1 Process for the removal of metals from solutions
10/07/1980CA1087132A1 Method for coalescing mercury particles
10/07/1980CA1087131A1 Electrolytic removal of heavy metal ions from aqueous solutions
10/01/1980EP0016690A1 Apparatus for separating solids from suspensions in a liquid influent
10/01/1980EP0016546A1 Extracellular microbial lipoheteropolysaccharides and derivatives, their preparation and compositions containing them, and their uses
10/01/1980EP0016531A2 Purification of phosphoric acid
10/01/1980EP0016013A1 Device for high efficiency continuous countercurrent extraction using a rotating helical tube.
10/01/1980EP0016000A1 Scavenging apparatus.
09/1980
09/30/1980US4225431 Process and apparatus for the treatment of aqueous waste materials
09/30/1980CA1086873A1 Process for the purification of waste water
09/23/1980US4224157 Process and apparatus for separating solids from suspensions of influent
09/23/1980US4224154 Swimming pool chemical control system
09/23/1980US4224152 Surface active compositions and method of use in dispersing or collecting oil slick
09/23/1980US4224151 Injection oxygen at a controlled rate to oxidize hydrogen sulfide to intermediate sulfide oxidation products
09/23/1980US4224150 Process for clarifying aqueous systems employing quaternary ammonium adducts of polymerizable tertiary ammonium salts and acrylamide
09/23/1980US4224149 Precipitant or sequestrant for calcium ions
09/23/1980US4224148 Galvanic flow system for joint particulate recovery and liquid purification
09/23/1980US4223696 Apparatus for the purpose of avoiding pressure drop between a gaseous or vaporous phase and a liquid phase
09/23/1980US4223536 Cryothermal manipulation of petroleum
09/23/1980CA1086436A1 Process for elimination of mercury from industrial waste waters by means of extraction with solvents
09/23/1980CA1086435A1 Mobile dimineralizer
09/23/1980CA1086434A1 Tertiary treatment of in-tank septic sewage
09/23/1980CA1086314A1 Synthetic organic flocculants to clarify raw sugar liquor
09/23/1980CA1086254A1 Divided electrochemical cell with electrode of circulating particles
09/18/1980WO1980001906A1 Water purification system employing ozone injection
09/18/1980WO1980001905A1 Method for recovering bromine contained in a discharge
09/18/1980WO1980001882A1 Gas diffuser,aerator,or sparger apparatus and method
09/17/1980EP0015737A1 Process for the regeneration of electroless plating baths
09/17/1980EP0015476A1 A method of oxidizing organic compounds in an aqueous system and a catalyst therefor
09/16/1980US4222995 Zeolite molecular sieves, hydrothermal crystallization, acidification, drying, comminution
09/16/1980US4222897 Manganese noducles with occluded sulfur
09/16/1980US4222877 Utilization of non-woven fabrics in water treatment
09/16/1980US4222868 Ultrasonic oil spill removal
09/16/1980US4222825 Process and an installation for the treatment of water
09/16/1980CA1085979A1 Chemical waste water treatment method
09/16/1980CA1085978A1 Process for the removal of phosphates from aqueous solutions
09/16/1980CA1085769A1 Sea water desalination apparatus
09/16/1980CA1085755A1 Method for depolluting fresh and sea water from petroleum products
09/16/1980CA1085746A1 Method for coalescing a liquid in a small-pore matrix, and apparatus therefor
09/16/1980CA1085580A1 Process for recovery of products from a waste stream in the manufacture of acrylonitrile
09/09/1980US4221661 Method of dehydrating organic sludge
09/09/1980US4221660 Aromatic percarboxylic acid, for water systems
09/09/1980US4221659 Process for reducing dichlorobutene contamination in aqueous plant wastes
09/09/1980US4221633 Method and apparatus for controllably recycling the solids content of the effluent from an asbestos-cement products forming plant
09/09/1980CA1085522A1 Process for clarifying raw water
09/09/1980CA1085521A2 Two-stage oxidative system
09/09/1980CA1085520A1 Handling of waste material
09/09/1980CA1085388A1 Cationically modified cellulose-containing materials and their use for the purification of industrial effluent
09/09/1980CA1085312A1 Water treatment device and method for manufacturing same
09/04/1980WO1980001800A1 Method for eliminating aromatic amines from waste water
09/03/1980EP0015157A1 Process and apparatus for separating water from an aqueous mixture
09/03/1980EP0015152A1 A method for removing multivalent heavy metal ions from a metal plating waste effluent
09/03/1980EP0015116A1 Process for the production of fatty acid soaps from sludge by extraction and subsequent saponifying
09/03/1980EP0015098A1 Process for removing alkalinity and hardness from water
09/03/1980EP0014884A1 Process for working up waste water containing ammonium sulfate
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