| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 09/14/1983 | EP0088468A1 Heat pump |
| 09/14/1983 | EP0088456A1 Process for the continuous removal of silicic acid from waste liquors deriving from cellulose pulp production |
| 09/14/1983 | EP0088315A1 Desalination device and process |
| 09/13/1983 | US4404462 Universal temperature control circuits |
| 09/13/1983 | US4404104 Cationic adsorption agent |
| 09/13/1983 | US4403480 Method of and apparatus for recovering heat energy contained in vapors of multi-stage evaporators installed for thermal material-separating processes |
| 09/13/1983 | CA1153835A1 Water purification system |
| 09/13/1983 | CA1153732A1 Odor control system |
| 09/13/1983 | CA1153726A1 Process for scale inhibition in evaporative desalination units |
| 09/13/1983 | CA1153704A1 Method for removal of impurities from liquid mixtures |
| 09/13/1983 | CA1153535A1 Stable calcium hypochlorite composite and method for manufacture thereof |
| 09/07/1983 | EP0087509A1 Use of polycondensation products from acrolein and formaldehyde as biocides |
| 09/06/1983 | US4402971 Para-anisole-containing biocide and method for isolating it and using it |
| 09/06/1983 | US4402920 Anionic hydrolyzed polyacrylamide flocculant |
| 09/06/1983 | US4402908 Method for reducing heat loss from contained bodies of water using polysiloxane foams |
| 09/06/1983 | US4402851 Dispersion using an alkaline earth metal and a basic anion |
| 09/06/1983 | US4402850 Method of producing a liquid agent for improving the quality of contaminated water |
| 09/06/1983 | US4402837 Reacting with metal hydroxide |
| 09/06/1983 | US4402836 Ultraviolet radiation catalyzed chlorination |
| 09/06/1983 | US4402835 Boron, group two sulfates, group two hydroixides precipitate |
| 09/06/1983 | US4402833 Precipi-tation as incoluble phosphates, filtration, treatment of filtrate with active carbon |
| 09/06/1983 | US4402793 Multiple effect thin film distillation system and process |
| 09/06/1983 | US4402760 Salt recovery system for a liquid curing medium |
| 09/06/1983 | US4402363 Petroleum recovery, bitumen recovery from tar sand |
| 09/06/1983 | US4402274 Method and apparatus for treating polychlorinated biphenyl contamined sludge |
| 09/06/1983 | US4402197 Automatic washing machine or dishwasher |
| 09/06/1983 | CA1153481A1 Dam spillway |
| 09/06/1983 | CA1153165A1 Method for recovery of wastewater residues |
| 09/01/1983 | WO1983002937A1 Water purifying apparatus |
| 08/31/1983 | EP0087295A1 Water treatment methods and compositions |
| 08/31/1983 | EP0087268A2 Process for treating sludge |
| 08/31/1983 | EP0087128A1 Method and apparatus for the biological purification of waste waters containing phosphate |
| 08/30/1983 | US4401811 Water pollution control; food processing plants; demetallization |
| 08/30/1983 | US4401574 Clarifying waste water with basic alumunum chorides |
| 08/30/1983 | US4401573 Formation of chromium hydroxide from chromium oxide |
| 08/30/1983 | US4401572 Selective zeolite sorption of group V-B element hydrides and derivatives thereof |
| 08/30/1983 | US4401571 Method for removing liquids floating on water |
| 08/30/1983 | US4401570 Removal of organic contaminants from waste water |
| 08/30/1983 | US4401552 Dilution with water, agitation and aeration |
| 08/30/1983 | US4401475 Removal using absorber encased in filter material |
| 08/30/1983 | CA1153136A1 Synergistic blend of biocides |
| 08/30/1983 | CA1152848A1 Method and composition for treating aqueous mediums |
| 08/24/1983 | EP0086738A1 Apparatus for sterilising liquids or gases |
| 08/24/1983 | EP0086592A1 Abatement of hydrogen sulfide in aqueous media using hydrogen peroxide and transition metal catalyst |
| 08/24/1983 | EP0067212A4 Para-anisole-containing biocide and methods for its isolation and use. |
| 08/23/1983 | US4400662 Method and apparatus for energizing an electrostatic precipitator |
| 08/23/1983 | US4400553 Recovery of BPA and phenol from aqueous effluent streams |
| 08/23/1983 | US4400305 Adsorbents comprising hydrated ferrites of Ti, Zr, and Sn and cured thermosetting resins |
| 08/23/1983 | US4400304 Metal oxide or hydroxide and thermoplastic resin |
| 08/23/1983 | US4400278 Counter-current adsorption filters for the treatment of liquids and a method of operating the filter |
| 08/23/1983 | US4400270 Ultraviolet apparatus for disinfection and sterilization of fluids |
| 08/23/1983 | US4400250 Electrode by applying direct current |
| 08/23/1983 | US4400134 Collector apparatus |
| 08/23/1983 | CA1152675A1 Method for cross linking polymers, polymer compositions and uses thereof |
| 08/23/1983 | CA1152529A1 1,3-diformyloxy-2-bromo-2-nitropropane |
| 08/23/1983 | CA1152442A2 Method and apparatus for high volume distillation of liquids |
| 08/23/1983 | CA1152290A1 Treatment of caustic waste from wet air oxidation process |
| 08/18/1983 | WO1983002769A1 Water treatment apparatus |
| 08/18/1983 | WO1983002768A1 Pressure floating settling tank |
| 08/18/1983 | WO1983002767A1 Separating tank |
| 08/18/1983 | WO1983002735A1 Foam mixture liquid producing apparatus |
| 08/18/1983 | WO1983002734A1 A device for proportioning liquids |
| 08/18/1983 | WO1983002720A1 A device for separating waste products from a flow of liquid and gas |
| 08/17/1983 | EP0086028A2 Water purifying method and system |
| 08/17/1983 | EP0086019A1 Method and apparatus for treating a liquid with a gas |
| 08/17/1983 | EP0085961A1 An oxygen injection nozzle |
| 08/17/1983 | EP0085902A2 Process for the continuous conversion of metakaolin into very fine zeolitic sodium aluminosilicate |
| 08/17/1983 | EP0085779A1 Method and apparatus for continuously and counter-currently contacting liquid and solid media |
| 08/16/1983 | US4399039 Treatment of tailings pond sludge |
| 08/16/1983 | US4399038 Method for dewatering the sludge layer of an industrial process tailings pond |
| 08/16/1983 | US4399037 Centrifugal filtration |
| 08/16/1983 | US4399020 Device for waste water treatment |
| 08/16/1983 | CA1152240A1 Sewage treatment apparatus and method |
| 08/16/1983 | CA1152017A1 Treatment of brackish water |
| 08/10/1983 | EP0085661A1 Metal ion adsorbent |
| 08/10/1983 | EP0085629A1 Process for the flocculation of suspended particles in a liquid and application to the recovery of vegetable microalgae and zoological plankton, and to the purification of waste water |
| 08/09/1983 | US4397748 Partially hydrolyzed addition polymer as flow control agent |
| 08/09/1983 | US4397743 Water treatment method |
| 08/09/1983 | US4397719 Process for preparing nitrogen by ammonium nitrate decomposition |
| 08/09/1983 | CA1151783A1 Integrated flotation filtration process |
| 08/09/1983 | CA1151514A1 Method of polishing glass ware with sulfuric acid and hydrofluoric acid |
| 08/04/1983 | WO1983002606A1 Method and installation for the separation of polymolecular water structures containing also biologically active water |
| 08/03/1983 | EP0024422B1 Water purification system employing ozone injection |
| 08/02/1983 | US4396752 Strong cationic polyelectrolytes in powder form based on acrylamide and quaternized or salified dimethylaminoethyl acrylate for flocculation of solid material suspensions and coalescence of emulsions |
| 08/02/1983 | US4396740 Scavenging of residual acrylonitrile monomer in ABS latex |
| 08/02/1983 | US4396718 Field test method for estimation of concentration of organic materials in water |
| 08/02/1983 | US4396580 Fluid-dynamic means for efficaceous use of ionizing beams in treating process flows |
| 08/02/1983 | US4396513 Acrylamide-dimethylaminoethylmethacrylate methyl chloride copolymer |
| 08/02/1983 | US4396512 Bacteriostatic filter media |
| 08/02/1983 | US4396474 Modified carbon or graphite fibrous percolating porous electrode, its use in electrochemical reactions |
| 08/02/1983 | US4396463 Method of purifying waste water |
| 08/02/1983 | CA1151323A1 Process for the chemical removal of phosphorus compounds from waste water and process for the purification of waste water |
| 08/02/1983 | CA1150978A1 Control system for meter actuated regeneration in a water treatment system |
| 07/27/1983 | EP0084476A1 Apparatus for the treatment of liquids by an ion-exchange resin, in particular a domestic water softener |
| 07/27/1983 | EP0084285A2 Process for treating aromatic amines containing waste waters |
| 07/26/1983 | US4395546 Decoloring effluents |
| 07/26/1983 | US4395541 Ionene polymer and preparation thereof |
| 07/26/1983 | US4395354 Lipo-, heteropolysaccharides; emulsifiers; enhanced oil recovery; aluminum silicate flocculants |
| 07/26/1983 | US4395353 Polyanionic heteropolysaccharide biopolymers |
| 07/26/1983 | US4395339 Method of operating pure oxygen wet oxidation systems |