| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 02/17/1982 | EP0046025A2 Selective extraction of gold |
| 02/17/1982 | EP0045850A1 Method of separating metals from aqueous solutions |
| 02/16/1982 | US4316007 Flocculation and aggregation in water clarification treatment |
| 02/16/1982 | US4316005 Cationic adsorption agent |
| 02/16/1982 | US4315818 Anti-pollution equipment |
| 02/16/1982 | CA1118365A1 Reverse osmosis method and apparatus |
| 02/10/1982 | EP0045663A2 Spiral-wrapped reverse osmosis membrane assembly |
| 02/10/1982 | EP0045320A1 Filter candle for removing C.O.D. determination disturbing chloride ions |
| 02/09/1982 | US4314906 Water purification by chlorinating, holding, and aerating |
| 02/09/1982 | US4314779 Precipitating calcium carbonate |
| 02/09/1982 | US4314455 Freeze concentration apparatus and process |
| 02/09/1982 | CA1118123A1 Method and arrangement for treatment of sludge water |
| 02/09/1982 | CA1118122A1 Water clarification |
| 02/09/1982 | CA1117979A1 Acrolein composition and method of enhancing effective life thereof in an aqueous medium |
| 02/09/1982 | CA1117739A1 Polyether compounds |
| 02/04/1982 | WO1982000288A1 A process for removing cyanide ions from solutions |
| 02/04/1982 | WO1982000256A1 Water purification system |
| 02/03/1982 | EP0045142A1 Adsorption onto charcoal cloth |
| 02/03/1982 | EP0044830A1 Heat pump method of concentrating fluids |
| 02/02/1982 | US4314077 Method for the production of urea and purification of water |
| 02/02/1982 | US4314025 Blood preservation anticoagulant solution |
| 02/02/1982 | US4313830 Method for increasing the cross-flow microfiltration fluxes of waste waters containing suspended solids and/or emulsified oil |
| 02/02/1982 | US4313827 Enhanced disinfection system |
| 02/02/1982 | US4313825 Control system for meter actuated regeneration in a water treatment system |
| 02/02/1982 | US4313808 Electrodialyzer and method of regenerating waste photographic processing solution |
| 02/02/1982 | US4313800 Method of reconditioning radioactive filtrate |
| 02/02/1982 | US4313786 Magnetron solvent recovery system |
| 02/02/1982 | US4313305 Feedback energy conversion system |
| 02/02/1982 | US4313234 Toilet |
| 02/02/1982 | CA1117669A1 Process for the secondary treatment of wastewater |
| 02/02/1982 | CA1117624A1 Means and method for controlling an apparatus for conditioning a liquid |
| 02/02/1982 | CA1117439A1 Stripping equipment for removal of contaminations floating in liquids, especially having lower specific weight than that of the liquid, expediently for purification of oil-containing sewages |
| 02/02/1982 | CA1117437A1 Use of nonstoichiometric carbon-sulfur compounds to remove components from liquids |
| 02/02/1982 | CA1117272A1 Generation of chlorine dioxide for disinfection and sterilization |
| 01/27/1982 | EP0044294A1 A desalination apparatus with power generation |
| 01/26/1982 | US4312758 Effluent treatment process |
| 01/26/1982 | US4312756 Apparatus for the separation of liquids from suspensions |
| 01/26/1982 | US4312755 For desalting sea water |
| 01/26/1982 | US4312754 Portable water purifier especially for domestic use |
| 01/26/1982 | US4312722 Electrolytic reduction of nitrates in cell having cation exchange separator membrane |
| 01/26/1982 | US4312710 Multistage flash evaporator |
| 01/26/1982 | US4312709 Solar energy collection still |
| 01/20/1982 | EP0044124A1 Composition and method for reducing oxygen in aqueous media |
| 01/20/1982 | EP0044058A1 Means and method for treating process and effluent water in paper making and related industries |
| 01/19/1982 | US4311832 Proemulsans |
| 01/19/1982 | US4311831 Apo-ψ-emulsans |
| 01/19/1982 | US4311830 Apo-α-emulsans |
| 01/19/1982 | US4311829 Apo-β-emulsans |
| 01/19/1982 | US4311663 α-1,4-Thiazine alkanephosphonic acids as corrosion inhibitors |
| 01/19/1982 | US4311599 Reduced methylene blue for oxygen removal |
| 01/19/1982 | US4311598 Disinfection of aqueous media |
| 01/19/1982 | US4311597 Method and apparatus for treatment of wastewater |
| 01/19/1982 | US4311596 Extraction of reusable water from a mineral mining process |
| 01/19/1982 | US4311595 Electrolysis, water treatment |
| 01/19/1982 | US4311575 Ion exchanging, desalting |
| 01/19/1982 | CA1116765A1 Method of dewatering aqueous waste sludge |
| 01/19/1982 | CA1116764A1 Detoxification of residual quaternaries |
| 01/19/1982 | CA1116763A1 Process for the removal of mercury and mercury compounds from aqueous solutions and industrial waste liquors |
| 01/19/1982 | CA1116762A1 Process for treating cyanide and cyanate-containing wastewaters |
| 01/19/1982 | CA1116761A1 Device for complete desalination of water |
| 01/19/1982 | CA1116759A1 Process for deoderizing sludges, particularly clarification sludges |
| 01/19/1982 | CA1116408A1 Process for recovering molybdenum and tungsten from mining wastewater |
| 01/13/1982 | EP0043759A1 Hydrophilic substrate for sorbing heavy metals and method for making such substrate |
| 01/12/1982 | US4310691 Method for selectively recovering sodium citrate from an aqueous solution |
| 01/12/1982 | US4310472 Quaternary ammonium adducts of polymerizable tertiary ammonium salts and acrylonitrile |
| 01/12/1982 | US4310415 Enhanced oil recovery |
| 01/12/1982 | US4310406 Apparatus for removing metal ions and other pollutants from aqueous solutions and moist gaseous streams |
| 01/12/1982 | US4310396 Method for desalination of water, in particular sea water |
| 01/12/1982 | US4310387 Obtaining fresh water |
| 01/12/1982 | US4310382 Method of and a device for vaporizing and recovering water from aqueous solutions |
| 01/12/1982 | CA1116324A1 Detoxification of cationic flocculants |
| 01/12/1982 | CA1116322A1 Apparatus for the treatment of impure liquids |
| 01/12/1982 | CA1116008A1 Controlled protein hydrolysis |
| 01/12/1982 | CA1115983A1 Device for high efficiency continuous countercurrent extraction using a rotating helical tube |
| 01/06/1982 | EP0043325A1 Hydrophilic material for sorbing heavy metals, method for making such material and its use |
| 01/06/1982 | EP0043148A1 Apparatus for removing iron from water |
| 01/06/1982 | EP0042919A2 Method and apparatus for working or treating materials, especially flowable solid mixtures, and dispersions with oscillating tools |
| 01/06/1982 | EP0042844A1 Device for preventing deposit of sediments in uptake tubes of an evaporator |
| 01/05/1982 | US4309401 Process for the manufacture of sulphur which can be recycled |
| 01/05/1982 | US4309383 Di-quaternary ammonium salts of α-1,4-thiazine alkanephosphonic acids as corrosion inhibitors |
| 01/05/1982 | US4309291 Waste water treatment |
| 01/05/1982 | US4309290 Magnetically supported particle matrix for accumulating or affecting substances dissolved or finally dispersed in liquids or gas |
| 01/05/1982 | US4309285 Deodorizing and decoloring |
| 01/05/1982 | CA1115679A1 Filter material and a method of making it |
| 01/05/1982 | CA1115643A1 Prevention of solute deposition fouling in membrane processes |
| 01/05/1982 | CA1115496A1 Method and apparatus for effecting subsurface, controlled, accelerated chemical reactions |
| 12/30/1981 | EP0042813A2 Anionic absorbents, process for their preparation and their use in removing cationic agents and heavy-metal ions from aqueous solutions |
| 12/30/1981 | EP0042624A1 Support for an electrochemically active catalyst for the oxidation or reduction of components of aqueous solutions |
| 12/29/1981 | US4308385 Urea hydrolysis, ammonia and carbon dioxide separation |
| 12/29/1981 | US4308150 Operation control method for a waterworks system |
| 12/29/1981 | US4308149 Flocculation and removal of turbidity in industrial effluents |
| 12/29/1981 | US4308146 Crushed raw oil shale as oil spill adsorbent |
| 12/29/1981 | US4308138 To simultaneously aerate, and disperse a treating agent |
| 12/29/1981 | US4308122 Using electrolysis |
| 12/29/1981 | US4308117 Water treatment |
| 12/29/1981 | US4308111 Distillation process |
| 12/29/1981 | CA1115437A1 Process for treating waste water |
| 12/29/1981 | CA1115436A1 Method of removing mud from mud-water suspensions |
| 12/29/1981 | CA1115434A1 Wastewater purification |
| 12/29/1981 | CA1115433A1 Method for protecting a bioreactor pressurized head tank against extreme surges of influent waste water |