| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 05/15/1985 | EP0141313A1 Process for the regeneration of hydrochloric acid-based pickles containing iron and zinc |
| 05/15/1985 | EP0141034A2 Method for removing a silicic compound from the waste liquor of steel pickling |
| 05/14/1985 | US4517096 Method of selective separation and concentration of gallium and/or indium from solutions containing low levels of them and high levels of other metal ions |
| 05/14/1985 | US4517095 Clay, cement, phosphates |
| 05/14/1985 | US4517094 Organoclay adsorption column followed by active carbon |
| 05/14/1985 | US4517084 Removing ammonia and organic pollution |
| 05/14/1985 | US4517067 Electrochemical reactors, nonconductors |
| 05/14/1985 | US4516402 Limitless and limited heat sources power plants |
| 05/14/1985 | CA1187216A1 Reduction of metal content of treated effluents |
| 05/14/1985 | CA1187215A1 Process for recovering and recycling coagulant present in water treatment sludges |
| 05/14/1985 | CA1187214A1 Method of removing soluble sulfide residue from scrubber water waste |
| 05/14/1985 | CA1187213A1 Process for flocculating phosphatic slimes |
| 05/14/1985 | CA1186967A1 Purification of water |
| 05/09/1985 | WO1985001965A1 Reversible polarity electrode |
| 05/08/1985 | EP0140732A1 Device for picking up a polluting layer from the water surface |
| 05/08/1985 | EP0140587A1 Process for removing dissolved oxygen from an aqueous medium |
| 05/08/1985 | EP0140572A1 Continuous sorption process |
| 05/08/1985 | EP0140563A2 Process for removal of dissolved oxygen from an aqueous medium used in steam generation systems |
| 05/08/1985 | EP0140519A1 Use of chelating agents in water desalination |
| 05/08/1985 | EP0140444A2 A process for removing of heavy metals from water in particular from waste water |
| 05/08/1985 | EP0140310A2 Method and device for separating the ingredients from emulsion-containing waste waters by means of mechanical flotation |
| 05/08/1985 | EP0140287A2 Polarity-reversable electrode |
| 05/08/1985 | EP0139880A1 Distillation device |
| 05/08/1985 | EP0139715A1 A method to purify water. |
| 05/07/1985 | US4515697 Method for flocculating microscopic particles in suspension in a liquid and application to the collection of phytoplankton microalgae and zooplankton and for the purification of used water |
| 05/07/1985 | US4515696 Separation of residue after neutralization before precipitation |
| 05/07/1985 | US4515695 Extraction of substances from aqueous solution |
| 05/07/1985 | CA1186822A1 Sludge treatment or dewatering process |
| 05/07/1985 | CA1186586A1 Treatment of waters with broad spectrum contaminants |
| 05/07/1985 | CA1186484A1 Process for the oxidation of hydrogen sulphide dissolved in the waste water from a coal gasification process |
| 05/02/1985 | EP0139622A1 A method for purifying aqueous solutions |
| 05/02/1985 | EP0139572A1 Apparatus for the treatment of water by precipitation, separation, thickening and sludge recirculation |
| 05/02/1985 | EP0139497A2 Use of an adsorbing agent for the adsorption of mercury |
| 05/02/1985 | EP0139404A1 Biocidal water treatment |
| 05/02/1985 | EP0139321A2 Process and apparatus for rendering harmless, dangerous chemical waste material |
| 05/02/1985 | EP0139002A1 Mobile fluid purification unit. |
| 05/02/1985 | EP0139001A1 Boiler installation. |
| 05/02/1985 | EP0138857A1 Method and apparatus for ozonizing a fluid. |
| 04/30/1985 | US4514504 Selective absorption and concentration |
| 04/30/1985 | US4514366 Production of fluid fertilizer from phosphorus furnace waste stream |
| 04/30/1985 | US4514273 Apparatus for stimulating removal of electrolytic energy from fluids |
| 04/30/1985 | US4514270 Passing direct current through metal oxide containing solution anddepositing metals on cathode |
| 04/30/1985 | US4514260 Apparatus for the desalination of sea water |
| 04/30/1985 | US4514191 Slag removal apparatus |
| 04/30/1985 | US4513658 Container for activation of microbiophysical properties of substances especially food-stuffs |
| 04/30/1985 | US4513459 Bleach cake in an improved bleach resistant particle retaining means |
| 04/30/1985 | CA1186433A1 Water-soluble polymers of di-c.sub.1-c.sub.3- alkylaminoneopentyl (meth)acrylates, and their use as retention agents, drainage agents and flocculants in papermaking |
| 04/30/1985 | CA1186424A1 Break-point chlorination control system |
| 04/30/1985 | CA1186423A1 Thiosulfate removal from aqueous streams |
| 04/30/1985 | CA1186294A1 Process for the continuous conversion of meta-kaolin into very finely-divided zeolitic sodium aluminosilicate |
| 04/30/1985 | CA1186257A1 Oxygen scavenging with enzymes |
| 04/30/1985 | CA1186242A1 Process and apparatus for recovering usable water and other materials from oil field mud/waste pits |
| 04/30/1985 | CA1186154A1 Process for removing molybdenum from aqueous salt solutions |
| 04/25/1985 | WO1985001789A1 Process for the recovery of heat from waste water with simultaneous saving of drinkable water |
| 04/25/1985 | WO1985001723A1 Process for protecting lakes against eutrophization caused by subsoil water |
| 04/25/1985 | WO1985001722A1 Method for removing insoluble sulfide pads at oil/water interfaces |
| 04/25/1985 | WO1985001671A1 A process for continuously removing and recovering respectively a gas dissolved in a liquid, particularly ammonia from aqueous ammonia waste water |
| 04/25/1985 | WO1985001670A1 Processes for treating waste streams |
| 04/24/1985 | EP0138118A2 Avoidance of rising sludge in biological wastewater treatment clarifiers |
| 04/24/1985 | EP0138060A2 Hollow-fiber filtering module and water purification device utilizing it |
| 04/24/1985 | EP0137875A1 Agglomerated halo-hydantoins |
| 04/24/1985 | EP0137827A1 Distillation apparatus |
| 04/24/1985 | EP0041537B1 Method and device for removing floating liquid impurities, particularly oil, from a flowing water surface |
| 04/23/1985 | US4512955 Apparatus for water treatment |
| 04/23/1985 | US4512914 Monoalkyl guanidinium salts |
| 04/23/1985 | US4512909 Use of a hydroquinone compound with hydrazine (1:1 molar ratio) as an oxygen-scavenging and a corrosion-inhibiting agent |
| 04/23/1985 | US4512900 Method for treating waste compositions |
| 04/23/1985 | US4512887 Sewage treatment without a pump-vacuum forces/ catalyst |
| 04/23/1985 | US4512784 Closed loop water treating system |
| 04/23/1985 | US4512394 Variable effect absorption machine and process |
| 04/23/1985 | CA1186076A1 Removal of copper from chelant solutions |
| 04/23/1985 | CA1186075A1 Method for partially desalinating water with a weakly acid and strongly basic ion exchanger materials and subsequently regenerating the ion exchanger materials |
| 04/23/1985 | CA1185917A1 Waste water treating process for feeds with high nh.sub.3/h.sub.2s ratios |
| 04/17/1985 | EP0069136B1 Installation for spreading clay muds for rehabilitating soils |
| 04/17/1985 | EP0056054B1 Water purification system |
| 04/16/1985 | US4511467 Apparatus for the simultaneous formation and separation of a liquid suspension |
| 04/16/1985 | US4511436 Apparatus for the desalination of sea water |
| 04/16/1985 | US4510978 Dosing appliance |
| 04/16/1985 | CA1185740A1 Flocculants based on polymers containing water- soluble dialkylaminoneopentyl(meth)acrylates |
| 04/10/1985 | EP0136973A1 Method and composition for disinfecting water |
| 04/10/1985 | EP0136578A2 Separation of Th 4+ from compositions loaded with Th 4+ and UO2 2+ |
| 04/10/1985 | EP0136539A1 Process for the separation of a mixture of organic compounds and water resulting from the solvent recovery by absorption and desorption |
| 04/10/1985 | EP0136309A1 Method for producing a modified aqueous chlorite solution, solution produced thereby and utilization thereof. |
| 04/10/1985 | EP0020639B1 In-line distillation system |
| 04/09/1985 | US4510026 Intermittent reduced pressure, cooling electrolyte |
| 04/09/1985 | CA1185382A1 Anionic and cationic removal of copper from cyanide- containing wastewater |
| 04/03/1985 | EP0136032A2 Treatment of effluent liquors |
| 04/02/1985 | US4508838 Compositions containing thiolates for removal of heavy metal ions from dilute aqueous solutions |
| 04/02/1985 | US4508697 Less than stoichiometric amount |
| 04/02/1985 | US4508687 Degassing/brine tank for pool chlorinating system |
| 04/02/1985 | US4508627 Process for making starch flocculants of improved efficiency |
| 04/02/1985 | US4508625 Negatively charged surface of particles having increased magnetic susceptibility |
| 04/02/1985 | US4508545 Closed loop water treating system and method |
| 04/02/1985 | US4507916 Wind generating means |
| 04/02/1985 | CA1184858A1 Apparatus and process for treating a fluid |
| 04/02/1985 | CA1184853A1 Agent and method for the treatment of production cycle and effluent water of the papermaking and related industries |
| 04/02/1985 | CA1184852A1 Water processor having fail-safe elements |
| 03/28/1985 | WO1985001280A1 Apparatus for neutralizing acidified water |
| 03/28/1985 | WO1985001223A1 Method and apparatus for obtaining a suspension and/or a solution of a powdered limestone in water |
| 03/28/1985 | WO1985001221A1 Membrane separator |