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