Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124)
07/1984
07/03/1984US4457841 Regeneration of ion exchange materials
07/03/1984US4457769 Freeze concentration apparatus and process
07/03/1984US4457495 Apparatus for the automatic recovery of silver from argentiferous wash waters
07/03/1984US4457221 For killing organisms resident within a host
07/03/1984CA1170392A1 Waste water treatment by chelation-gelation
07/03/1984CA1170212A1 Feeding electrolytically generated chlorine to water to be chlorinated
07/03/1984CA1170208A1 Portable water distiller
06/1984
06/27/1984EP0111999A2 Spherical ion exchange resin, method for producing the same and method for adsorption treatment using the same
06/27/1984EP0111920A2 Apparatus and method for the electrolytic production of chlorine water
06/27/1984EP0111646A1 Sea water desalination plant
06/27/1984EP0111509A1 Apparatus for universal water treatment
06/26/1984US4456535 By hydrolysis and desorption; flowing countercurrent to a heating and stripping gas
06/26/1984US4456534 Adding calcium chloride and a cationic polymeric flocculant
06/26/1984US4456532 Biological flocculation of mineral slimes
06/26/1984US4456452 Process for bleaching textiles and for combating microorganisms with sulphonated phthalocyanine carrying halogen or pseudohalogen substituents as photoactivator
06/26/1984CA1169737A1 Method of treating water-in-oil dispersions
06/26/1984CA1169735A1 Process for the production of an anion exchanger, and a use of same
06/26/1984CA1169607A1 Process and apparatus for recovery of spent pulping liquors
06/26/1984CA1169603A1 Microbicidal/microbistatic compositions and use thereof
06/20/1984EP0111379A1 A method of, and apparatus for, purifying waste water
06/20/1984EP0111249A2 Method and device for disinfecting water ducts in dental appliances.
06/20/1984EP0110949A1 Purification apparatus.
06/19/1984US4455245 Orange peel, corn husk extracts
06/19/1984US4455236 Redox system, water treatment
06/19/1984US4455231 Flow regulation device for waste waters
06/19/1984US4455229 Fully shielded multiple core water conditioner
06/19/1984CA1169440A1 Process for preparing wastes for non-pollutant disposal
06/19/1984CA1169234A1 Filter media, method for oxidizing and removing soluble iron, method for removing and inactivating microorganisms and particulate filter aid
06/13/1984EP0110848A1 A method for producing water-purifying chemicals
06/13/1984EP0110580A2 Improved process for removing pyrogens utilizing a hydrophobic microporous membrane
06/13/1984EP0110440A2 Inhibition of the staining of porcelain surfaces by manganese
06/13/1984EP0110240A1 Process and apparatus for the removal of heavy metals from waste water
06/13/1984EP0110148A1 Method of sterilising water
06/13/1984EP0110111A1 Method and apparatus for controlling additive dispensers in waste water treatment systems
06/13/1984EP0109967A1 Water decarbonating process
06/12/1984US4454048 Treating waste water contaminated with a low concentration of latex
06/12/1984US4454047 Process of treating aqueous systems
06/12/1984US4454045 Ion exchanging
06/12/1984US4453960 Inhibition of ice deposition
06/12/1984US4453953 Intermittent ozone feeding apparatus
06/12/1984CA1169167A1 Mobile fluid purification system
06/12/1984CA1169024A1 Liquid treater having electrical charge injection means
06/12/1984CA1168991A1 Topological separator
06/12/1984CA1168951A1 Process for the production of a cation exchanger, and a use of same
06/07/1984WO1984002126A1 Process for the prevention of magnesium and calcium scaling in desalination apparatus
06/07/1984WO1984002125A1 Method for eliminating manganiferous scales from watersupply pla nts, treatment solution and utilization thereof
06/05/1984US4453079 Irradiator apparatus and method
06/05/1984US4452773 Magnetic iron-dextran microspheres
06/05/1984US4452713 Inhibition of the staining of porcelain surfaces by manganese
06/05/1984US4452705 Filter device for the softening and/or complete desalination of a liquid, particularly water
06/05/1984US4452702 Process for the extraction of cesium ions from aqueous solutions using an adduct compound containing a macrocyclical polyether and an inorganic heteropoly acid
06/05/1984US4452699 Method of improving the SVI of mixed liquor in aeration tank
06/05/1984US4452696 Reverse-osmosis apparatus for producing fresh water from seawater
06/05/1984CA1168592A1 Apparatus for removing a pollutant from the surface of a water body
05/1984
05/30/1984EP0109738A1 Protracted-release microbiocidal articles containing microbiocides of relatively low water solubility
05/30/1984EP0109497A1 Process for removing heavy metal ash from an aqueous soot suspension
05/30/1984EP0109496A1 Process for separating slag-forming heavy metal compounds from an aqueous suspension of carbon black
05/29/1984US4451442 Oxidation, chelation
05/29/1984US4451377 Process for cleaning an oil-contaminated brine containing particulate drill cutting solids
05/29/1984US4451376 Anionic polymer solutions, microbiocides
05/29/1984US4451366 Separator
05/29/1984US4451361 Apparatus for removing dissolved iron from water
05/29/1984US4451341 Electrolytic water sterilization system
05/29/1984US4451334 Multi-effect rotary distillation process
05/29/1984US4451277 Production of fluid fertilizer from phosphorus furnace waste stream
05/29/1984US4450966 Survival kit
05/29/1984US4450777 Process for removing noxious substances containing fluorine and/or sulfur from gaseous or liquid media
05/29/1984CA1168388A1 Treatment of highly acidic liquid effluents
05/29/1984CA1168184A1 Simplified maintenance electrocoagulator
05/23/1984EP0109354A1 Biocidally active mixture
05/23/1984EP0109349A1 Method of treating liquid manure
05/23/1984EP0108952A1 Dosing apparatus for injecting fluids into flowing media
05/22/1984US4450092 Coagulation using aluminum or iron chloride or sulfate and polydiallyldimethylamonium chloride
05/22/1984US4450072 Air flotation cell
05/22/1984US4450057 Acidification to decomplex colloid; chelation using cationic polymer
05/22/1984US4450002 Detoxification of waste water by acidification and rapid flow over aluminum; sewage treatment
05/22/1984US4449850 Antipollution device for recovering fluids lighter than water escaping from an underwater source
05/22/1984US4449849 Method of removing water from earthen pits
05/22/1984US4449543 Fluid injecting method and apparatus
05/16/1984EP0108740A2 Dosing device
05/16/1984EP0108326A1 Apparatus for the purification of waste, industrial or potable water
05/15/1984US4448696 Process for recovering and recycling coagulant present in water treatment sludges
05/15/1984US4448695 Multicellular grid packed with activated carbon
05/15/1984US4448694 Metal extraction from solution and immobilized chelating agents used therefor
05/15/1984US4448693 Method for partially desalinating water with a weakly acid and strongly basic ion exchanger materials and subsequently regenerating the ion exchanger materials
05/15/1984US4448032 Ice-making and fresh water dispensing apparatus
05/08/1984US4447333 Mixing with flue gas, then catalytic deamination, denitrification
05/08/1984US4447331 Atomizing wastes with reagents into helical flow
05/08/1984US4447330 Method of treating waste water
05/08/1984US4447322 Apparatus for the cyclone separation of liquids having different densities
05/02/1984EP0107583A1 Process and plant for the continuous treatment of swimming pool water, reducing its halogen compounds content
05/02/1984EP0107582A1 Absorption masses for the elimination of mercury comprising a carrier loaded with sulfur
05/02/1984EP0107494A2 Sorbent comprising spherical particles of activated carbon
05/02/1984EP0107204A1 A method for neutralization of acidified water-courses
05/02/1984EP0106970A1 Extraction of halogenated hydrocarbons from aqueous solutions using phosphine oxides on inert supports as the extractant
05/02/1984EP0106916A1 Method for the removal of colouring matter, pigments and/or optical brightening agents from waste waters
05/02/1984EP0106847A1 Water purifying apparatus
05/01/1984US4446029 Destruction of iron cyanide complexes
05/01/1984US4445990 Electrolytic reactor for cleaning wastewater
05/01/1984US4445935 Method for the recovery of silver from waste photographic fixer solutions