Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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05/21/1987 | WO1987002905A1 Reverse osmosis water purifier |
05/21/1987 | WO1987002903A1 Process and device for distilling fresh water from sea-water |
05/21/1987 | WO1987002902A1 Process and device for distilling fresh water from sea water |
05/21/1987 | DE3540991A1 Process for operating industrial plants in which alkaline-reacting process waters occur |
05/21/1987 | DE3540746A1 Process for dewatering sludge in a centrifuge |
05/21/1987 | DE3540732A1 Verfahren zur destillation von suesswasser aus meerwasser A method for distillation of sweet water from sea water |
05/21/1987 | DE3540730A1 Verfahren zur destillation von suesswasser aus meerwasser A method for distillation of sweet water from sea water |
05/21/1987 | DE3540508A1 Process and device for removing dispersed and dissolved substances from liquids |
05/21/1987 | DE3540164A1 Filter apparatus for neutralizing acidic condensates from exhaust gases |
05/21/1987 | DE3539525A1 Process for the extractive separation of hydrocarbons from an aqueous solution |
05/20/1987 | EP0222180A2 Process and apparatus for backwashing a solid-bed ion exchanger |
05/20/1987 | EP0221898A1 METHODS FOR THE PURIFICATION OF WATER AND THE REMOVAL OF POLLUTANTS BY USING A MARINE ALGA, THE éi(LITHOTHAMNIUM CALCAREUM) |
05/20/1987 | CN86201682U Automatic controlled fluorine remover for drinking water |
05/19/1987 | US4666883 Rare earth hydroxide or hydrous oxide adsorbent |
05/19/1987 | US4666610 Method and product for removal of chloramines, chlorine and ammonia from aquaculture water |
05/19/1987 | US4666608 Method for rendering visible the line of separation between cation exchangers and anion exchangers in mixed-bed filters |
05/19/1987 | US4666606 Xeronine |
05/19/1987 | US4666600 Gravity operated |
05/19/1987 | US4666599 Charcoal cloth sheets activated by electrodes; for household or industry |
05/14/1987 | DE3644712A1 Apparatus for draining off the water surplus from a carwash water recovery plant |
05/14/1987 | DE3615873C1 Process and apparatus for the treatment of liquid manure |
05/14/1987 | DE3540256A1 Process and apparatus for treating sludges |
05/14/1987 | DE3535678A1 Filter cartridge for improving the quality of drinking water |
05/14/1987 | DE3534716A1 Process for the biological denitrification of water and apparatus for carrying out this process |
05/14/1987 | DE3528617A1 Control even for only part-loaded water treatment plants having measurement and/or test points for the water and/or the exchanger mass for matching the regular regenerations to the actual degree of exhaustion of the total exchanger mass |
05/13/1987 | EP0221689A1 Process for waste treatment |
05/13/1987 | EP0221094A1 Device for the degasing of disinfected water in a disinfection plant of a dental surgery |
05/13/1987 | EP0221070A1 Process for the separation of emulsions containing water as a continuous phase and device for the application of the process. |
05/13/1987 | CN86105063A Method and apparatus for use in separating solids from liquids |
05/13/1987 | CN85108201A Fast and energy saving process for separation of iron impurity from concentrated salts solution |
05/12/1987 | US4665050 Thermoplastic resin |
05/12/1987 | US4664810 Method of separating heavy metals from complex-forming substances of aminocarboxylic acid type, or salts thereof in aqueous solutions |
05/12/1987 | US4664809 Groundwater pollution abatement |
05/12/1987 | US4664806 Ethers having carboxy, thio, and amide groups |
05/12/1987 | US4664804 Absorption by anaerobic sludge |
05/12/1987 | US4664793 Pure water manufacturing apparatus |
05/12/1987 | US4664752 Vapor flow through porous mass |
05/12/1987 | US4664751 For marine or desert areas |
05/12/1987 | US4664700 Water pollution control |
05/12/1987 | US4664680 Pressurized stream supersaturated with oxygen |
05/12/1987 | US4664068 Heat generating unit for heating a liquid |
05/12/1987 | CA1221682A1 Continuous mixing and feeding apparatus comprising fins of substantial area |
05/07/1987 | DE3538756A1 Process and plant for heating sewage sludge |
05/07/1987 | DE3538699A1 Handy kitchen water strainer |
05/07/1987 | DE3535679A1 Unpressurised apparatus for improving the quality of drinking water |
05/06/1987 | EP0220647A1 Sludge restructuring and conversion method |
05/06/1987 | EP0220189A1 Process for the regeneration of cleaning and degreasing baths and device for application of the process. |
05/06/1987 | EP0136309B1 Method for producing a modified aqueous chlorite solution, solution produced thereby and utilization thereof |
05/06/1987 | CN86104642A Polluted water purifying equipment of electromagnetic pulse and laminar flow |
05/06/1987 | CN85107810A Coacervative purifition by heating |
05/05/1987 | US4663091 Humidifier for removing bacilli from water |
05/05/1987 | US4663089 Diffused bubble aeration system |
05/05/1987 | US4663057 Swimming pool chlorine injection means and method |
05/05/1987 | US4663055 Flocculation |
05/05/1987 | US4663047 Process for purifying waste water |
05/05/1987 | US4663044 Denitrification, dephosphorization |
05/05/1987 | US4663043 Method of treating peroxide-containing wastewater |
05/05/1987 | US4663035 Apparatus for separating air and solid particles from a liquid |
05/05/1987 | US4662904 Seawater |
05/05/1987 | US4662902 Evaporation cooling tower |
05/05/1987 | US4662538 Bactericidal pellet dispenser |
05/05/1987 | US4662387 Inline dispersal valve |
04/30/1987 | DE3538231A1 Process for reprocessing waste solutions |
04/29/1987 | EP0219757A1 Detoxification of waste water from dithiocarbamate manufacture |
04/29/1987 | EP0219612A2 Process for treating quench water |
04/28/1987 | US4661518 Slimicides, bactericides |
04/28/1987 | US4661517 Gramnegative bacteria |
04/28/1987 | US4661503 Synergistic biocide of dodecyl guanidine hydrochloride and a mixture of 5-chloro-2-methyl-4-isothiazolin-3-one |
04/28/1987 | US4661264 Laser disinfection of liquids |
04/28/1987 | US4661263 Water clarification |
04/28/1987 | US4661262 Method and composition for deactivation of uncured paint |
04/28/1987 | US4661259 Activated carbon, cationic polymers |
04/28/1987 | US4661257 Quaternary ammonium salts as complexing agents |
04/28/1987 | US4661256 Process for the removal of hydrocarbonaceous compounds from an aqueous stream and hydrogenating these compounds |
04/28/1987 | US4660544 Solar collector system with radiation concentrated on heat absorber vanes |
04/28/1987 | CA1221037A1 Separation process |
04/28/1987 | CA1220945A1 Extracting chromium (iii) from aqueous solutions with 2-ethylhexyl acid phosphate |
04/23/1987 | WO1987002269A1 Process for simultaneous extraction of so2 and nox contained in waste gases |
04/23/1987 | WO1987002221A1 Disinfectant compositions and disinfection process applicable to infected liquids or surfaces |
04/23/1987 | DE3628550A1 Apparatus for collecting and for periodically channelling a quantity, which is to be measured out, of sewage, which is to cleaned, into an individual sewage treatment plant |
04/22/1987 | EP0219440A1 Method for decontaminating a pebble or sandy beach |
04/22/1987 | EP0219414A1 Regeneration of an ion exchange resin bed for the removal of nitrates from water |
04/22/1987 | EP0219083A2 Electrodialysis membrane stack assembly for multichamber processes |
04/22/1987 | EP0219004A2 Cartridge for a water treatment apparatus |
04/22/1987 | EP0218608A1 Low-foaming compositions. |
04/22/1987 | CN86106909A Ozone purification system and apparatus |
04/22/1987 | CN86105340A Device for water magnetization |
04/22/1987 | CN86105091A Method and apparatus for use in separating solids from liquids |
04/21/1987 | US4659512 Fixation of dissolved metal species with a complexing agent |
04/21/1987 | US4659484 Method for treating air-cooling system's aqueous medium |
04/21/1987 | US4659479 Reducing scale formation |
04/21/1987 | US4659476 Decompaction, washing, and percolation through ion exchanger |
04/21/1987 | US4659471 Method of controlling an anaerobic treatment process |
04/21/1987 | US4659463 System to remove contaminants from water |
04/21/1987 | US4659462 Apparatus for pretreatment of water using a bed of granular activated carbon |
04/21/1987 | US4659460 Mobile fluid purification unit |
04/21/1987 | US4659459 Computerized |
04/21/1987 | US4659443 Solvent extraction; electrolytic dehalogenation |
04/21/1987 | US4659359 2-chloro-4,6-diamino-s-triazines as algicides |
04/21/1987 | US4659347 Method of and device for purging water from certain contaminants |