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