| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 01/21/1992 | US5082568 Method for removing low concentrations of metal contaminants from water |
| 01/21/1992 | US5082564 Method and means for desalination of seawater and brackish water |
| 01/21/1992 | US5082563 Methods for cleaning up liquids using absorbent pellets |
| 01/21/1992 | US5082560 Method and apparatus for treating a liquid mixture |
| 01/21/1992 | US5082558 Compact contact lens purification system using ozone generator |
| 01/21/1992 | US5082525 Method and apparatus for improving the performance of liquid waste evaporators |
| 01/21/1992 | CA2041204A1 Method and apparatus for treating fluid |
| 01/21/1992 | CA1294718C Method of oxidizing sulfide-containing liquor |
| 01/20/1992 | WO1992001637A1 Bioreactor |
| 01/17/1992 | WO1992009877A2 Ftir remote sensor apparatus and method |
| 01/15/1992 | EP0466427A1 Electrolytic recovery apparatus |
| 01/15/1992 | EP0465968A1 Process for the treatment of acrylonitrile waste water |
| 01/15/1992 | EP0465822A1 Recovery of sodium hydroxide and aluminium hydroxide from etching waste |
| 01/15/1992 | EP0465749A1 Physical method for the prevention and elimination of scale in a liquid media |
| 01/15/1992 | EP0465485A1 Method for separating oil and water emulsions. |
| 01/15/1992 | CN2093173U Higher grade health drinking water preparation device |
| 01/15/1992 | CN2093172U Funnel type water magnetizing device |
| 01/15/1992 | CN2093171U Long magnetic distance fluid magnetizing device |
| 01/15/1992 | CN2092931U Strong magnetic health magnetization water-cup |
| 01/14/1992 | US5081182 Cationic monomer delayed addition process |
| 01/14/1992 | US5080863 Inhibiting corrosion in aqueous heat transfer apparatus |
| 01/14/1992 | US5080806 Decontamination treatment of process water |
| 01/14/1992 | US5080805 Aerial oxidation |
| 01/14/1992 | US5080802 Induced gas liquid coalescer and flotation separator |
| 01/14/1992 | US5080799 Adsorbant is a metal or metal sulfide that forms amalgam or a sulfide with mercury |
| 01/14/1992 | US5080780 Single cell vertical static flow flotation unit cross-reference to related applications |
| 01/14/1992 | US5080704 Solid-liquid-vapor multiple phase transformation process with coupled absorption-melting operations |
| 01/14/1992 | CA1294378C Device for providing lime to acidificated waters |
| 01/14/1992 | CA1294224C Compact and cleanable apparatus for preventing scale formation in liquidsystems |
| 01/10/1992 | WO1992000799A1 Substance carrying conglomerate |
| 01/09/1992 | WO1992000247A1 Purification of aqueous liquor |
| 01/09/1992 | WO1992000129A1 Column body to take plate-type heat exchangers |
| 01/09/1992 | WO1991018026A3 Novel acrylamidoxim-acrylhydroxam acid copolymers, process for making them and their use |
| 01/08/1992 | EP0464688A1 Method for destruction of toxic substances with ultraviolet radiation |
| 01/08/1992 | EP0464193A1 Treatment of piggery effluent |
| 01/08/1992 | EP0464043A1 Use of non-hydrolysed copolymers containing n-vinyl formamide units as flocculation and dehydrating agents. |
| 01/08/1992 | EP0438529A4 Removing hazardous contaminants from water |
| 01/08/1992 | CN2092710U Domestic quick-heating magnetic water shower nozzle |
| 01/08/1992 | CN2092541U Magnetic cup |
| 01/08/1992 | CN2092540U High frequency alternating electromagnetic field water treatment equipment |
| 01/08/1992 | CN2092539U Backflow compensation type magnetic water supply |
| 01/08/1992 | CN2092538U 油水分离机 Oil Skimmer |
| 01/08/1992 | CN2092537U Ultraviolet-ray disinfector |
| 01/07/1992 | US5079010 Aqueous solution of trace elements or salts at acid ph; suntan lotion |
| 01/07/1992 | US5078902 Divalent silver halide bactericide |
| 01/07/1992 | US5078900 And separation of discontinuous phase from solution |
| 01/07/1992 | US5078899 Removal Of Ferric Hydroxide |
| 01/07/1992 | US5078894 Formulations for iron oxides dissolution |
| 01/07/1992 | US5078890 Technique for the removal of petroleum-based pollutants and a material for that purpose |
| 01/07/1992 | US5078889 Selective removal of contaminants from water sources using inorganic media |
| 01/07/1992 | US5078881 Decontamination process |
| 01/07/1992 | US5078880 Vortex desalination system |
| 01/07/1992 | US5078876 Apparatus for multistage purification of water |
| 01/07/1992 | US5078874 Fire chamber water filter device |
| 01/07/1992 | US5078870 Unpotted apparatus for magnetically treating liquids flowing through relatively large pipes and the manner of attaching same to the exterior of such pipes |
| 01/07/1992 | US5078864 High flow rate reverse osmosis water filtration system for home use |
| 01/07/1992 | US5078861 Water clarifying apparatus |
| 01/07/1992 | US5078795 Adding Rice Hull Ash And A Strong Alkali |
| 01/07/1992 | US5078299 Apparatus for the periodic and controlled dispensing of tablets such as chlorine pellets |
| 01/07/1992 | CA2046407A1 Method for destruction of toxic substances with ultraviolet radiation |
| 01/07/1992 | CA2043717A1 Recovery of sodium hydroxide and aluminum hydroxide from etching waste |
| 01/07/1992 | CA1293847C Fluid purification system |
| 01/02/1992 | EP0463714A1 Multi-functional oxygen and carbon dioxide corrosion control treatment for steam systems |
| 01/02/1992 | EP0463671A1 Process for treating waste pickling baths containing metallic salts and acids |
| 01/02/1992 | EP0463605A1 Method and apparatus having reverse osmosis membrane for concentrating solution |
| 01/02/1992 | EP0463448A1 Method and apparatus for heating and multiple effect degasification of water |
| 01/02/1992 | EP0463195A1 Movable device for the purification of all kinds of sewage |
| 01/02/1992 | EP0215087B1 Cross-flow filtration |
| 01/02/1992 | DE4119590A1 Appts. for evaporative treatment of water contaminated with oil - comprising vapour compressor to heat from compressed vapour is reused in evaporator and in water pre-heaters |
| 01/02/1992 | DE4107735A1 Degassing boiler water to remove carbon di:oxide - by diverting steam rising in degassing vessel by vanes and intensively mixing with water droplets passing downwards over series of trays |
| 01/02/1992 | DE4020914A1 Gas purificn. by converting ammonia to nitrogen using catalyst - contg. noble metal and transition metal oxide e.g. for purifying waste gas from soda mfr. |
| 01/02/1992 | DE4020560A1 Working-up of seat pickling liquor contg. metal salts and acids - preventing pollution with only small expenditure on energy and materials |
| 01/02/1992 | DE4019991A1 Kolonnenkoerper zur aufnahme von plattenwaermetauschern Kolonnenkoerper for acceptance of plattenwaermetauschern |
| 01/02/1992 | DE4019900A1 Compact ion-exchange filter - in which acid flows upwards in reverse direction through anion unit and is converted to second acid suitable for regenerating cation unit |
| 01/01/1992 | CN2091860U Water magnetizer for thermos bottle |
| 01/01/1992 | CN2091859U Seawater desalter |
| 01/01/1992 | CN2091858U Enamel solar still with inclined steps |
| 01/01/1992 | CN2091714U Tow-stage continuous ion exchanger with outer regeneration |
| 01/01/1992 | CN2091706U Coalescence-type separator of oil from water |
| 01/01/1992 | CN2091621U Water drinking utensil with functions of thermal insulation and magnetizing water |
| 01/01/1992 | CN1057444A Method for preparation of liquid palymeric aluminium sulfate and its applications |
| 12/31/1991 | US5076941 Monofluorophosphate solubility inhibitor for lead in potable water sources |
| 12/31/1991 | US5076940 Treatment of impure aqueous solutions |
| 12/31/1991 | US5076939 Adjusting alkalinity, adding alumina-coated silica and polymeric flocculant; automobiles |
| 12/31/1991 | US5076938 Oil treatment method |
| 12/31/1991 | US5076934 Desalination of brackish water from oil wells |
| 12/31/1991 | US5076927 Fermentation by sulfur reducing bacteria; sulfiding, methanati on |
| 12/31/1991 | US5076922 Water-filtration apparatus |
| 12/31/1991 | US5076913 Fluid purifying apparatus and method of purifying fluids |
| 12/31/1991 | US5076912 Ion exchange device with chamber having indicator means |
| 12/31/1991 | US5076895 Process and apparatus for recovering clean water and solids from aqueous solids using mechanical vapor recompression evaporators |
| 12/31/1991 | US5076846 One step grinding and dispersion |
| 12/31/1991 | US5076315 Dispersal valve and canister |
| 12/30/1991 | WO1992000248A1 Purification of aqueous liquor |
| 12/30/1991 | CA2075946A1 Purification of aqueous liquor |
| 12/28/1991 | WO1992000128A1 Waste materials concentrator |
| 12/28/1991 | CA2086118A1 Waste materials concentrator |
| 12/27/1991 | EP0462606A1 Method and system for producing sterile aqueous solutions |
| 12/27/1991 | EP0462523A1 Apparatus and process for water treatment |
| 12/27/1991 | EP0462306A1 Method and apparatus for water demineralisation by solar energy in a closed loop air system |