Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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08/04/1993 | EP0528901A4 Improved method for solute transfer between solid and liquid phases |
08/04/1993 | EP0478583B1 Process and device for treating polluted fluids |
08/04/1993 | EP0473680B1 Process for the purification of contaminated water by activated ozone |
08/04/1993 | EP0434752B1 Thermophilic alginate lyase from bacillus stearothermophilus nrrl b-18394 |
08/04/1993 | EP0383805B1 A low pressure distillation apparatus |
08/04/1993 | CN2139578Y Even high frequency electric field electronic water treater and treating room |
08/04/1993 | CN2139577Y Magnetic water utensil |
08/04/1993 | CN2139576Y Roots device for water treatment |
08/04/1993 | CN2139575Y Rust removal device |
08/04/1993 | CN2139574Y Synthetical device for desalination of seawater |
08/04/1993 | CN2139573Y Water purifier by use of mineralization and magnetic field |
08/04/1993 | CN1074958A Process for recovery of waste chrome-plating bath solution by concentration, smelting and purifying |
08/04/1993 | CN1074954A Electrochemical cell |
08/03/1993 | US5232953 Method and apparatus for waste brine management in water conditioners |
08/03/1993 | US5232882 Ozone decomposing reactor regeneration |
08/03/1993 | US5232605 Breakdown of waste waters containing aromatic nitro compounds |
08/03/1993 | US5232604 Process for the oxidation of materials in water at supercritical temperatures utilizing reaction rate enhancers |
08/03/1993 | US5232590 Water filtration apparatus |
08/03/1993 | US5232584 Method and apparatus for purifying and compacting solid wastes |
08/03/1993 | US5232583 Controlled nitrification, denitrification |
08/03/1993 | US5232556 Water desalination apparatus |
08/03/1993 | US5232484 Aqueous acid solution; mineralization; absence of large concentrations of organic solvents, chloride and sulfate |
08/03/1993 | US5232085 Distillation system with a hydrophobic porous membrane |
08/03/1993 | US5231852 Melt system for liquid purification by batch crystallization |
08/03/1993 | CA1320911C Purification of effluent from wood pulp bleach plant |
08/03/1993 | CA1320813C Sterilizer unit for fluid media and process |
08/01/1993 | WO1993014974A1 Package system for collection-transport of waste liquids |
07/31/1993 | CA2083984A1 Paint spray booth treatment of waterborne coatings |
07/31/1993 | CA2068013A1 Cationic polyelectrolyte demulsifier and coagulator |
07/30/1993 | CA2082005A1 Electrochemical cell with degassing device |
07/29/1993 | DE4301364A1 Decolourising baths used to dye or rinse oxidised aluminium |
07/29/1993 | DE4208183C1 Sludge evaporation and drying assembly - has plate packets as evaporation surfaces for exposure to compressed steam in a pressure vessel |
07/29/1993 | DE4135368A1 Incinerator filter dust - is sieved to give a coarse fraction with low neutral salts and heavy metal cpd. content to reduce vol. for special disposal |
07/28/1993 | EP0552703A1 Cation exchange resins having an enhanced capacity for iron oxides |
07/28/1993 | EP0552242A1 Oxygen removal with keto-gluconates |
07/28/1993 | EP0543920A4 Particle accelerator transmission window configurations, cooling and materials processing |
07/28/1993 | EP0541734A4 Ftir remote sensor apparatus and method |
07/28/1993 | EP0541637A4 A process for purifying impotable water and wastewater with hypochlorous acid |
07/28/1993 | EP0434686B1 Removal of nitric oxide from waste gases and recovery as nitric acid |
07/28/1993 | EP0429631B1 Biocidal methods for recirculating water systems |
07/28/1993 | CN2139206Y 磁性管道接头 Magnetic pipe joints |
07/28/1993 | CN2139117Y High-efficient sterilizer for drinking water |
07/28/1993 | CN2139116Y Permanent-magnet fluid magnetizer |
07/28/1993 | CN2138937Y Integrated body magnetic cup |
07/28/1993 | CN2138936Y 矿化杯 Mineralization Cup |
07/28/1993 | CN2138934Y Multipurpose fast dynamic magnetic cup |
07/28/1993 | CN2138933Y Music magnetic cup with temp. control |
07/28/1993 | CN1074670A Method for sterilizing hospital sewage using "Youanjing" |
07/27/1993 | US5230903 Stable disinfecting compound |
07/27/1993 | US5230838 Fine bubble generating apparatus |
07/27/1993 | US5230810 Corrosion control for wet oxidation systems |
07/27/1993 | US5230808 Liquid suspension of polyethylene oxide for use in treating paper and pulp wastewater |
07/27/1993 | US5230807 Electrical water treatment system with indicators displaying whether control limits are maintained |
07/27/1993 | US5230803 Biodegradation, membrane separation, adsorption |
07/27/1993 | US5230792 Ultraviolet water purification system with variable intensity control |
07/27/1993 | US5230782 Purification by decomposition |
07/27/1993 | US5230164 Raw sewage disposal apparatus |
07/22/1993 | WO1993014034A1 Composition for oil removal |
07/22/1993 | WO1993014033A1 Detoxification of aqueous cyanide solutions |
07/22/1993 | WO1993013883A1 Bioreduction of metal oxides and oxyanions by photosynthetic bacteria |
07/22/1993 | WO1993013847A1 Water treatment device |
07/22/1993 | WO1993013844A1 Chromatography system with flow-through capacitor and method |
07/22/1993 | WO1993013831A1 Method of hydrodehalogenating halogenated organic compounds in aqueous environmental sources |
07/22/1993 | DE4200849A1 Conditioning of rinse water from chemical and/or electrolytic surface treatment - includes passing rinse water from 1st tank of multistage rinse to electrodialysis unit and concentrate to treatment bath via selective ion exchanger and/or evaporator |
07/22/1993 | DE4200802A1 Sewage flocking and flotation assembly - has tubes in spirals with chicane flow turbulence for flocking action with reduced chemical consumption |
07/22/1993 | CA2128013A1 Method of hydrodehalogenating halogenated organic compounds in aqueous environmental sources |
07/22/1993 | CA2127976A1 Bioreduction of metal oxides and oxyanions by photosynthetic bacteria |
07/22/1993 | CA2127716A1 Water treatment device |
07/21/1993 | EP0551981A1 System for monitoring the radioactivity of liquid waste |
07/21/1993 | EP0551978A2 Ground contamination remediation process and apparatus |
07/21/1993 | EP0551761A1 Effluent treatment apparatus |
07/21/1993 | CN2138647Y Integrated iron and mangnese removing filtering pond |
07/21/1993 | CN2138646Y Separated drinking water magnetizer |
07/21/1993 | CN2138645Y Liquid magnetizer |
07/21/1993 | CN2138497Y Strong magnetic steam cosmetic device |
07/21/1993 | CN2138445Y Insulation magnetic cup with non-break glass liner |
07/21/1993 | CN2138443Y Temperature adjustable mineral water kettle |
07/21/1993 | CN1074527A Magnetotherapeutic energy-saving water heater |
07/21/1993 | CN1021657C Transition metal recovery |
07/20/1993 | US5229125 Molluscicidal water distribution system components |
07/20/1993 | US5229011 Process for pathogen reduction in waste |
07/20/1993 | US5229009 Effluent precipitation and neutralization chamber |
07/20/1993 | US5229006 Method of recovering oil-based fluid and apparatus |
07/20/1993 | US5228995 Biochemically enhanced hybrid anaerobic reactor |
07/20/1993 | US5228964 Chlorinating apparatus |
07/18/1993 | CA2059606A1 Water treatment device |
07/15/1993 | DE4300400A1 Retention of over-spray in spray painting - has paint caught on continuously moving filtration surface which passes through washer and is returned |
07/15/1993 | DE4244600A1 UV-light disinfection unit for circulating water systems - where circulating pump and treatment chamber are combined in a single unit, pump motor forming closure of one end of treatment chamber |
07/15/1993 | DE4200566A1 Replaceable cartridge for electric drinks-brewing machine - has inflow and outflow sieve with rectangular holes, sealing rims, and sealing lip. |
07/15/1993 | DE4200253A1 Personal water filter - has funnel with stretch hose to the filter cartridge |
07/14/1993 | EP0551061A1 Process for the preparation of a coagulating chemical |
07/14/1993 | EP0550967A1 Removal of mercury from waste streams |
07/14/1993 | EP0550948A1 Process for treatment of wastewater containing ammonium compounds |
07/14/1993 | EP0550470A1 Improved filtration technique. |
07/14/1993 | EP0550430A1 A method for corrosion-proofing of a water system. |
07/14/1993 | EP0315672B1 A process for the removal of organic contaminants from solids and sediments |
07/14/1993 | CN2138118Y Mineral water magnetizing bottle |
07/14/1993 | CN2137981Y Mineralized water generator |
07/14/1993 | CN2137912Y Electromagnetic heating container |
07/14/1993 | CN2137908Y Resonance magnetizing cup |