Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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01/31/1987 | CN86100778A Comprehensive process for electroplating waste water treatment |
01/31/1987 | CN86100483A Process for producing polyferric sulfate |
01/31/1987 | CN85101740A Recovery of organic acids, catalysts and water from terephehalic acid manufacture |
01/29/1987 | WO1987000559A1 Electrode construction |
01/29/1987 | WO1987000516A1 Method for wastewater treatment |
01/29/1987 | DE3618186A1 Water distribution system for a mobile or stationary decontamination plant |
01/29/1987 | DE3526863A1 Process and apparatus for treating waste water of barrel finishing processes |
01/29/1987 | DE3525990A1 Sanitary water heating tank |
01/28/1987 | EP0209964A2 Evaporation method and apparatus |
01/28/1987 | EP0209790A2 Carrier materials containing polymer-bound fillers, process for their manufacture and their use |
01/28/1987 | EP0209789A2 Method of separating pollutants from water-solvent mixtures |
01/28/1987 | EP0209734A1 Process for the recovery of amine and metal compounds in the preparation of polyphenylene ether |
01/28/1987 | EP0209603A1 Water cleaning apparatus |
01/28/1987 | EP0209533A1 Process and system for the flocculation substances which can be flocculated in suspensions, especially for cleaning the discharge water of deinking plant. |
01/28/1987 | CN85105632A Precipitation tank with longitudinal declinate plate |
01/27/1987 | US4639718 Boiler blowdown monitoring system and process for practicing same |
01/27/1987 | US4639293 Partially evacuated solar still |
01/27/1987 | US4638766 Process for the treatment of boiler condensate |
01/24/1987 | CN86103000A Treatment of waste water from chromium plating factory by sulfur dioxide |
01/24/1987 | CN85109068A Treatment of sewage from plating works by chemical reduction precipitation and light catalytic oxidation |
01/22/1987 | DE3525770A1 Process for the continuous removal and recovery of ammonia from waste waters of flue-gas purification plants |
01/22/1987 | DE3525326A1 Covering apparatus for settling tanks |
01/21/1987 | EP0209260A2 Biocidal mixture |
01/21/1987 | CN85105484A Preservative for drinking water |
01/20/1987 | US4637783 Fluid motor-pumping apparatus and method for energy recovery |
01/20/1987 | EP0137827A4 Distillation apparatus. |
01/20/1987 | CA1216781A1 Compositions comprising mineral particles in suspension and method of treating aqueous systems therewith |
01/17/1987 | CN85101146A Process for treatment waste solution containing ammonium ions and fluorine ions |
01/15/1987 | WO1987000220A1 Arrangement for the flocculation of flocculable substances, particularly for the purification of effluents from deinking installations for used paper processing |
01/15/1987 | WO1987000162A1 Process and apparatus for treatment of water |
01/15/1987 | WO1987000161A1 Removing selenium from water |
01/15/1987 | WO1987000160A1 Apparatus for desalinating salt water by membrane distillation |
01/15/1987 | DE3524952A1 Process for the preparation of a water-in-oil emulsion of a polymer |
01/15/1987 | DE3523541A1 Process for working up hydrolysed residues arising in the preparation of organochlorosilanes |
01/14/1987 | EP0208217A1 Flocculant organosol in harmony with the environment |
01/14/1987 | EP0208198A2 Method of biopolymeric sludge dewatering |
01/14/1987 | EP0208119A1 Water-soluble monomers and polymers |
01/14/1987 | EP0207951A1 Osmotic concentration by membrane. |
01/14/1987 | EP0138857B1 Method and apparatus for ozonizing a fluid |
01/14/1987 | CN85105534A Method of soil decontamination by sewage appling to particulate soil |
01/14/1987 | CN85104999A Method of processing an iron-containing dust obtained in the preparation of iron of steel |
01/13/1987 | US4636367 Coprecipitation, fluidized beds |
01/13/1987 | US4636307 Hydrophobic and hydrophilic microporous membranes |
01/13/1987 | US4636296 Demineralization, ion exchanging, electricity |
01/13/1987 | US4636283 Nultistage vertical tube evaporation |
01/13/1987 | US4635663 Self-contained, single-use hose and tubing cleaning module |
01/10/1987 | CN85101846A Method for removing sulfate from electrolytic brine |
01/08/1987 | DE3624169A1 Device for the disinfection of liquids by irradiation |
01/08/1987 | DE3622225A1 Process for purifying waste waters |
01/08/1987 | DE3523026A1 Device for sterilizing a liquid |
01/08/1987 | DE3522713A1 Drinking water preservative |
01/07/1987 | EP0207798A2 Sorbing apparatus |
01/07/1987 | EP0207592A1 Testing polyelectrolytes |
01/07/1987 | EP0207390A1 Process for the recovery of amine and metal compounds in the preparation of polyphenylene ether |
01/07/1987 | EP0207208A1 Injector with regulated flow |
01/07/1987 | EP0091469B1 Method of immobilizing organic contaminants and non-flowable matrix produced therefrom |
01/06/1987 | US4634539 Oxygen-reactive sulfite and/or bisufite with iron oxide as catalyst |
01/06/1987 | US4634536 Solid particles form liquids in slurries |
01/06/1987 | US4634533 Method of converting brines to useful products |
01/02/1987 | DE3525788A1 Method and arrangement for controlling the addition of chemicals for flocculating flocculable substances in suspensions, especially for purifying the backwater of de-inking installations |
01/02/1987 | DE3522466A1 Process for the recovery of the amine and metal components in the synthesis of polyphenylene ethers |
01/02/1987 | DE3522212A1 Process for dewatering sludge |
01/02/1987 | DE3512880C1 Device for the metered dispensing of cold drinks and hot drinks |
12/31/1986 | WO1986007617A1 Method at water supply and sewerage system and system for water supply and sewerage |
12/31/1986 | WO1986007586A1 Electrode unit to be used for purification of emulsions and polluted waters, especially oil-bearing waters, by means of electrolysis |
12/31/1986 | WO1986007585A1 A distillation apparatus |
12/31/1986 | CN86102465A Cross-flow filtration |
12/30/1986 | US4632766 Oxidation |
12/30/1986 | US4632764 Sludge dewatering process using multiple layer plate |
12/30/1986 | US4632760 Method of treating aqueous solutions |
12/30/1986 | US4632758 Anaerobic wastewater treatment system |
12/30/1986 | US4632754 Desalination apparatus |
12/30/1986 | US4632745 Removing ions from liquids; anion and cation exchange resins |
12/30/1986 | US4632737 Adding bismuth compounds and reversing the current |
12/30/1986 | US4632150 Water conditioner rotary valve |
12/30/1986 | EP0206915A2 Cleaning apparatus for water surfaces |
12/30/1986 | EP0206782A2 Procedure and apparatus for removing volatile substance from water during distillation or evaporation |
12/30/1986 | EP0206690A1 Ground-water treatment |
12/30/1986 | EP0206285A2 Filter cartridge for upgrading drinking water quality |
12/30/1986 | EP0205976A2 A process for the removal of sulfur oxides from gaseous and/or liquid waste products |
12/30/1986 | EP0205496A1 Nitrification/denitrification of waste material |
12/30/1986 | EP0205429A1 Treatment of wash water in paint spray booths. |
12/30/1986 | EP0059205B1 Fluid treatment apparatus |
12/30/1986 | CA1216083A1 Waste water treatment process |
12/24/1986 | CN86202791U Electrochemical disinfect liquid generator |
12/24/1986 | CN85108745A Method for removing ammonia from waste water |
12/24/1986 | CN85104609A Water purification system |
12/24/1986 | CN85103593A The method and equipment of separating oily sewage |
12/24/1986 | CN85103278A Hollow - fiber filter module |
12/23/1986 | USRE32312 Reducing turbulence |
12/23/1986 | US4631530 Chemical process monitor |
12/23/1986 | US4631135 Reduce biofouling of system by providing support surface |
12/23/1986 | US4631133 Waste treatment device and method using microwaves |
12/23/1986 | US4631132 Non-polymeric, biodegradable salt of fatty acid minoalkyl alkanolamide |
12/23/1986 | US4630634 Solid chlorine dispenser for spas |
12/23/1986 | CA1215674A1 Electrolytically softening sea water |
12/23/1986 | CA1215652A1 Sewage flow control apparatus |
12/23/1986 | CA1215545A2 Method for treating an insoluble composition loaded with th.sup.4.sup. and uo.sub.2.sup.2.sup. to separate th.sup.4.sup. therefrom |
12/18/1986 | WO1986007346A1 Methods for the purification of water and the removal of pollutants by using a marine alga, the lithothamnium calcareum |
12/17/1986 | EP0205045A1 Water desalination apparatus |