| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
|---|
| 12/16/1980 | US4239622 Water supply systems, monochloroamine and hydrogen peroxide |
| 12/16/1980 | US4239620 Cyanide removal from wastewaters |
| 12/16/1980 | US4239601 Water distiller with volatile pollutants removal stage |
| 12/16/1980 | CA1091830A1 Wastewater flotation |
| 12/10/1980 | EP0020157A1 Device for destroying bacterial flora |
| 12/10/1980 | EP0019805A1 Water producing apparatus |
| 12/10/1980 | EP0019794A1 Water purification apparatus |
| 12/10/1980 | EP0019733A1 Process for optimalizing the metabolic activity of micro-organisms in the substrate of a biologic reaction system |
| 12/10/1980 | EP0019670A1 Antimicrobial compositions, method of inhibiting the growth of microorganisms and metal working fluid compositions containing these antimicrobial compositions |
| 12/09/1980 | US4238477 Process of preparing homogeneous resin-polyiodide disinfectants |
| 12/09/1980 | US4238347 Coagulants in water treatment |
| 12/09/1980 | US4238331 Process for treating sea water containing waxy lipids |
| 12/09/1980 | US4238329 Coating filter with mixture of diatomaceous earth; adding mixture upstream; complexing |
| 12/09/1980 | US4238328 Process for removing heavy-metal ions from aqueous solutions |
| 12/09/1980 | US4238326 Fluid processor apparatus and method |
| 12/09/1980 | US4238296 Process of desalination by direct contact heat transfer |
| 12/09/1980 | CA1091371A1 Monobloc apparatus for water treatment |
| 12/09/1980 | CA1091217A1 Oil sorbing mat |
| 12/09/1980 | CA1091185A1 Process and apparatus for purifying waste waters |
| 12/09/1980 | CA1091164A1 Process and apparatus for cleaning particulate filters |
| 12/02/1980 | US4237237 Absorbers for oil from water |
| 12/02/1980 | US4237090 By adding tolyltriazole, bactericide, sodium metasilicate, sodium nitrite, and borax |
| 12/02/1980 | US4237008 Gravity flow disinfection contactor |
| 12/02/1980 | US4237004 Treatment with a coagulant and a disinfectant |
| 12/02/1980 | US4237002 Absorption on activated carbon of impurities in waste liquid which inhibit its biological treatment |
| 12/02/1980 | US4236992 For electrolyzing a chloride ion containing aqueous solution to produce chlorine and ozone |
| 12/02/1980 | US4236990 Treater with self-cleaning electrodes |
| 12/02/1980 | US4236974 Process and apparatus for purifying waste waters |
| 12/02/1980 | US4236973 Method of removing contaminants from water |
| 12/02/1980 | US4236382 Separation of an aqueous solution by the improved vacuum freezing high pressure ice melting process |
| 12/02/1980 | CA1090925A1 Methods and apparatus for use in water purification particularly sewage treatments |
| 12/02/1980 | CA1090763A1 Zeolite compositions and process for preparing same |
| 12/02/1980 | CA1090722A1 Lining for concrete water conduits |
| 12/02/1980 | CA1090538A1 Process for the wet oxidation of organic substances |
| 11/27/1980 | WO1980002574A1 Pulping liquor reutilization |
| 11/27/1980 | WO1980002553A1 Method of regeneration of activated carbon and apparatus therefor |
| 11/26/1980 | EP0019552A1 Process for the purification of waste water and/or industrial water containing hydrocarbons |
| 11/26/1980 | EP0019326A1 Process for purifying urea-containing waste water and process for preparing melamine |
| 11/26/1980 | EP0019216A1 Process for purifying waste water |
| 11/26/1980 | EP0019211A1 Process for purifying aqueous liquids |
| 11/26/1980 | EP0019175A1 Process for the improvement of the dewatering behaviour of sludges |
| 11/26/1980 | EP0019143A1 Water producing apparatus |
| 11/26/1980 | EP0019055A1 Filtration installation for treating water |
| 11/25/1980 | US4235715 Ion exchanging |
| 11/25/1980 | US4235712 Forming an emulsion with a nonionic surfactant and a hydrocarbon |
| 11/25/1980 | US4235698 Electronic water treatment apparatus |
| 11/25/1980 | US4235680 Method for desalinating water by preheating and distillation with solar energy |
| 11/25/1980 | US4235679 High performance solar still |
| 11/25/1980 | US4235678 Solar powered water desalination system with a regenerative fixture |
| 11/25/1980 | US4235677 Distillation flask and apparatus for producing high-purity water having overflow liquid trap means |
| 11/25/1980 | US4235281 Condenser/evaporator heat exchange apparatus and method of utilizing the same |
| 11/25/1980 | CA1090491A1 Two stage wastewater flotation |
| 11/25/1980 | CA1090490A1 Process for chemical decontamination of layers of earth |
| 11/25/1980 | CA1090488A1 Apparatus for on-site renovation of sanitary waters |
| 11/25/1980 | CA1090363A1 Polymeric quaternary ammonium salts, processes for their preparation and their use |
| 11/25/1980 | CA1090292A1 Electrolytic cell for treatment of water |
| 11/25/1980 | CA1090287A1 Apparatus and method for producing methane gas by processing waste materials |
| 11/25/1980 | CA1090281A1 Process for separating acid gases and ammonia from dilute aqueous solutions thereof |
| 11/25/1980 | CA1090096A1 Treatment of a hydrogen sulfide-containing gas |
| 11/18/1980 | US4234689 Production of α-emulsans |
| 11/18/1980 | US4234425 Fluoridation system |
| 11/18/1980 | US4234422 Process for removal of mercury and mercury compounds from aqueous solutions and industrial waste liquors |
| 11/18/1980 | US4234421 Land restoration following oil-well drilling |
| 11/18/1980 | US4234420 Method and apparatus for pollutant spill control |
| 11/18/1980 | CA1090018A1 Decontamination of radionuclides from water with chitin |
| 11/18/1980 | CA1089841A1 Oil absorbent product |
| 11/18/1980 | CA1089797A1 Fibrous electrolytic bed for the recovery of mercury and other heavy metal ions |
| 11/18/1980 | CA1089775A1 Oil recovery apparatus |
| 11/18/1980 | CA1089623A1 Ultraviolet liquid purification system |
| 11/12/1980 | EP0018852A1 Process for selective adsorption of naphthalenic hydrocarbons from water containing same using activated carbon |
| 11/12/1980 | EP0018511A1 Reactive filling substance having exchange properties |
| 11/12/1980 | EP0018366A1 Method and apparatus for effecting subsurface, controlled, accelerated chemical reactions. |
| 11/11/1980 | US4233406 Process for the enzymatic treatment of waste water of wheat starch plants |
| 11/11/1980 | US4233265 Liquid polymer hydration |
| 11/11/1980 | US4233153 Continuous method and apparatus for separating solvent from solute |
| 11/11/1980 | US4233152 Apparatus and method for the treatment of liquors |
| 11/11/1980 | US4233134 Electrical process of vaporization |
| 11/11/1980 | US4232700 Metering device |
| 11/11/1980 | CA1089573A1 Method for treating waste water containing cyanide ion |
| 11/11/1980 | CA1089449A1 Methods and catalysts for removing mercaptans and mercaptide compounds from aqueous alkaline solutions |
| 11/11/1980 | CA1089322A1 Sewage pump assembly |
| 11/04/1980 | US4231872 Device for complete desalination of water |
| 11/04/1980 | US4231869 Permanent cobalt catalyst for sulfite oxygen scavenging |
| 11/04/1980 | US4231868 With a dewatering aid comprising n-substituted sulfosuccinamate |
| 11/04/1980 | US4231867 Method and apparatus for treating heterogeneous fluid systems |
| 11/04/1980 | US4231839 After-treatment processes and apparatus, especially for urea and ammonium nitrate plants |
| 11/04/1980 | CA1089128A1 Optimizing flocculation |
| 11/04/1980 | CA1089127A1 Volume and time of day control for water softener regeneration |
| 11/04/1980 | CA1088892A1 Electrolytic chlorinator |
| 10/30/1980 | WO1980002282A1 Method for bacteriological treatment of manure and high bod industrial wastes |
| 10/30/1980 | WO1980002281A1 A process for precipitating heavy metals from wastewater |
| 10/30/1980 | WO1980002235A1 A method and an apparatus for gathering valuable floating,dissolved and suspended substances from sea water |
| 10/29/1980 | EP0018348A1 Process and device for the treatment of waste material |
| 10/29/1980 | EP0018340A1 An offshore plant for recovery of valuable floating, dissolved and suspended materials from sea water |
| 10/29/1980 | EP0018322A1 Method and apparatus for enriching a liquid with gases |
| 10/29/1980 | EP0018128A1 Reverse osmosis method and apparatus |
| 10/29/1980 | EP0017741A1 Process for converting residues from the purification of phosphoric acid by extraction into solid waste products suitable for deposition |
| 10/28/1980 | US4230947 Apparatus for treating flowable material |
| 10/28/1980 | US4230839 Quaternary ammonium adducts of polymerizable tertiary ammonium salts and acrylonitrile |
| 10/28/1980 | US4230801 Biosynthesis |