| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 02/10/1981 | US4249864 Centrifugal pump system for water desalinization |
| 02/10/1981 | US4249562 Inline dispersal valve |
| 02/10/1981 | CA1095454A1 Method and apparatus for distillation of crude water |
| 02/10/1981 | CA1095369A1 Treatment of oil polluted water surfaces |
| 02/10/1981 | CA1095262A1 Method for the removal of ferric ions from a concentrated aqueous zinc solution |
| 02/04/1981 | EP0023444A1 Portable water purifier for domestic use |
| 02/04/1981 | EP0023300A1 Lipophilic adsorbents and their use in upsetting oil contaminations on or in waters |
| 02/03/1981 | US4248733 Detergent, eucalyptus oil, bovine urine, alfalfa, vitamin b6 |
| 02/03/1981 | US4248715 Porous ceramic diaphragm |
| 02/03/1981 | US4248708 Purification of flotation tailings water |
| 02/03/1981 | US4248707 Magnetic chamber |
| 02/03/1981 | US4248684 Electrolytic-cell and a method for electrolysis, using same |
| 02/03/1981 | US4248681 Generation of chlorine/chlorine dioxide mixtures |
| 02/03/1981 | US4248672 Venting evaporated impurities to prevent recontamination of distillate |
| 02/03/1981 | CA1095190A1 Method for removing a weak acid from an aqueous solution |
| 02/03/1981 | CA1094975A1 Reduction of chemical oxygen demand of water by catalytic oxidation |
| 02/03/1981 | CA1094956A1 Color removal with polyethyleneimine-coated polysulfone semipermeable membrane |
| 02/03/1981 | CA1094942A1 Aerating apparatus |
| 01/28/1981 | EP0023111A1 A halogenated organic contaminant absorption process and an apparatus for carrying out the process |
| 01/28/1981 | EP0023084A1 Cross-linked polymer compositions and production thereof |
| 01/28/1981 | EP0023040A1 Apparatus for disinfecting flowable media |
| 01/28/1981 | EP0022839A1 Recuperation of cyanides from rinsing solutions of cyanidric processes for electrodeposition of metals |
| 01/28/1981 | EP0022770A1 Treatment of sea discharged sewage |
| 01/27/1981 | US4247712 Preservation of aqueous systems with 2-chloro-3-oxobutyramide derivatives |
| 01/27/1981 | US4247476 Polymeric quaternary ammonium salts containing specific cationic recurring units |
| 01/27/1981 | US4247432 And calcium or zinc chloride |
| 01/27/1981 | US4247396 Chemical solution dispenser |
| 01/27/1981 | US4247371 Precipitating scale-forming compounds from water, and forming fresh water |
| 01/27/1981 | US4247369 Apparatus for continuous distillation |
| 01/27/1981 | US4246925 Waste water vacuum conveyance method and apparatus |
| 01/27/1981 | CA1094702A1 Process for the detoxication of waste water containing phenol, phenol derivatives, or phenol and formaldehyde (1) |
| 01/27/1981 | CA1094700A1 Water recycling system |
| 01/27/1981 | CA1094504A2 Electrically regenerated ion exchange system |
| 01/27/1981 | CA1094500A1 Method and apparatus for distillation |
| 01/27/1981 | CA1094290A1 Process for the manufacture of an aqueous iron (iii)- chloride-sulfate solution |
| 01/21/1981 | EP0022526A1 Process for treating waste water |
| 01/21/1981 | EP0022525A1 Process for treating waste water |
| 01/21/1981 | EP0022503A1 Device for indicating the specific loading of metals of ion exchangers |
| 01/21/1981 | EP0022475A1 Aqueous basic polyaluminum-iron halide solutions and method of preparing |
| 01/21/1981 | EP0022469A1 Process for the separation of methanol from mixtures of tetrahydrofuran with methanol and water |
| 01/20/1981 | US4246417 Treatment of waste water from nitrile production |
| 01/20/1981 | US4246355 Ion exchange processes and products |
| 01/20/1981 | US4246105 Mixing with excited ionized gas to produce free radical promoters and regenerating metal catalyst |
| 01/20/1981 | US4246104 Pressure-hydrolytic treatment of effluent |
| 01/20/1981 | US4246102 Water treatment by precipitation filtration and flocculation |
| 01/20/1981 | US4246101 Water recycling system |
| 01/20/1981 | US4246092 Method and apparatus for the performance of selective electrodialysis |
| 01/20/1981 | CA1094013A2 Suspended solids extraction system and method |
| 01/20/1981 | CA1093824A1 Metering device |
| 01/20/1981 | CA1093791A1 Method of stripping chemically combined ammonia from the aqueous condensates and waste waters of low and high temperature carbonization processes |
| 01/14/1981 | EP0022423A2 Apparatus for treating raw water such as surface water, waste water and the like by means of sedimentation |
| 01/14/1981 | EP0022368A1 Method of removing contaminating impurities from leisure pools |
| 01/14/1981 | EP0022357A1 Down-hole separator for separating oil and water in a well |
| 01/14/1981 | EP0022197A1 Process for recycling sulphur |
| 01/14/1981 | EP0022179A1 Metering device |
| 01/13/1981 | US4244818 Method of removing metallic impurities from sewage sludge |
| 01/13/1981 | US4244804 Slime and sludge dewatering |
| 01/13/1981 | US4244795 Fluidized bed of metal particles acting as cathode |
| 01/13/1981 | CA1093749A1 Expanded styrene-polymers and polyolefin micro-bits and their preparation |
| 01/13/1981 | CA1093497A1 Multiple-stage flash evaporation unit and a process for using such unit |
| 01/08/1981 | WO1981000010A1 Controlled release of trace nutrients |
| 01/07/1981 | EP0021911A1 Process and apparatus for treating decontamination effluents coming from nuclear reactor components |
| 01/07/1981 | EP0021701A1 Zeolites, a method for their treatment and the use of the treated zeolites |
| 01/07/1981 | EP0021571A1 Oil dispersants |
| 01/07/1981 | EP0020904A1 Use of calcium sulfate in sewage sludge dewatering |
| 01/07/1981 | EP0020661A1 Process for desalination of sea water. |
| 01/07/1981 | EP0020510A1 Desalination plant |
| 01/06/1981 | US4243641 Method for recovering lithium from sea water |
| 01/06/1981 | US4243526 Process for purifying liquids and a device for carrying out the process |
| 01/06/1981 | US4243525 Method for reducing the formation of trihalomethanes in drinking water |
| 01/06/1981 | US4243523 Water purification process and system |
| 01/06/1981 | US4243522 Method and apparatus for utilizing heat content in waste water |
| 01/06/1981 | US4243478 Process for treating waste paper with hardened water |
| 01/06/1981 | CA1093229A1 Wastewater flotation utilizing streaming potential adjustment |
| 01/06/1981 | CA1093228A1 Preparation of clear, dilute lime solution by ion exchange |
| 01/06/1981 | CA1093013A1 Water pot with an electrolyzing device |
| 12/30/1980 | US4242220 Waste disposal method using microwaves |
| 12/30/1980 | US4242202 Apparatus for taking up oil from a water surface |
| 12/30/1980 | US4242201 By-pass water softener system and installation |
| 12/30/1980 | US4242193 Layered membrane and processes utilizing same |
| 12/30/1980 | US4242190 Rotary electrodic treater with jet action cleaning |
| 12/30/1980 | US4241787 Downhole separator for wells |
| 12/30/1980 | CA1092731A1 Universal chlorinator module |
| 12/30/1980 | CA1092360A1 Process for recovery of selected metal values from waste waters |
| 12/24/1980 | WO1980002846A1 Method and device in manufacturing foamed urea formaldehyde material to be used as a sorbent |
| 12/23/1980 | US4241039 Oxidation, precipitation of ferric hydroxide |
| 12/23/1980 | US4241035 Synthetic imogolite |
| 12/23/1980 | US4241025 Chlorinator |
| 12/23/1980 | US4240909 Nonionic amine-borane or phosphine-borane adducts |
| 12/23/1980 | US4240885 Oxidation of organics in aqueous salt solutions |
| 12/23/1980 | US4240808 Processing aqueous effluent liquors from degasification or gasification of coal |
| 12/23/1980 | US4240800 Absorbent fibers which are free of sugars |
| 12/23/1980 | US4240376 Controlling concentrations of ammonia compounds, water-soluble organic compounds, carbonic acid radical and dissolved molecular oxygen in water |
| 12/23/1980 | US4240210 Method and apparatus for utilizing solar energy in a water and waste management system |
| 12/23/1980 | CA1092083A1 Ionically modified cellulose materials |
| 12/23/1980 | CA1092054A1 Method and apparatus for removing colloidal suspensions |
| 12/23/1980 | CA1092052A1 Process for separating ammonia and acid gases from waste waters containing fixed ammonia salts |
| 12/23/1980 | CA1092051A1 Process for separating ammonia and acid gases from waste waters containing fixed ammonia salts |
| 12/23/1980 | CA1091866A1 Process for dyeing textile material |
| 12/16/1980 | US4239865 Polyvinyl (dialkylthiocarbamoylthio)acetate resin, method for producing same and heavy metals-removing agent comprising same |