| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 04/16/1991 | US5008075 Preventative maintenance system for underwater pipes |
| 04/16/1991 | US5008023 Biocidal compositions and use thereof containing a synergistic mixture of glutaraldehyde and 2-(decylthio) enthanamine |
| 04/16/1991 | US5008021 Conversion in the presence of a strong alkali; forming cementitious product with polyvalent metal ion |
| 04/16/1991 | US5008020 Treatment of domestic and industrial waste waters |
| 04/16/1991 | US5008019 Displacing with aqueous alkaline polymer solution |
| 04/16/1991 | US5008017 Mixing silver containing sludge with metal bicarbonate and carbonates to form free-flowing powder |
| 04/16/1991 | US5008011 Shower dechlorinator using granulated copper alloy filter material |
| 04/16/1991 | US5007994 Water purification system |
| 04/16/1991 | US5007989 Method and articles employing ion exchange material |
| 04/14/1991 | WO1991005739A1 Method and device for the magnetic treatment of a fluid |
| 04/14/1991 | CA2067503A1 Method and device for the magnetic treatment of a fluid |
| 04/14/1991 | CA2027487A1 Product/process/application for improving carbon adsorptive capacity by oxygen addition in aqueous systems |
| 04/11/1991 | WO1991005741A1 Calcium hypochlorite compositions for inhibiting scale formation and a method for their use |
| 04/11/1991 | DE3933511A1 Waste water treatment esp. from cosmetics industry - by addn. of oxidising agent and/or catalyst and exposure to artificial UV radiation to get rid of lipophilic substances |
| 04/11/1991 | DE3932565A1 Water softening system - based on bottle neck with permanent magnet |
| 04/11/1991 | CA2027266A1 Liquid phase reaction process |
| 04/10/1991 | EP0421702A2 Interfacial purifying apparatus using tourmaline, method thereof and tourmaline granular material |
| 04/10/1991 | EP0421563A1 Method and apparatus for producing activated mineral water |
| 04/10/1991 | EP0421399A1 Method of treating fluoride-containing water |
| 04/10/1991 | EP0421265A1 Process and apparatus for admixing of a flocculant solution to sludge liquid before filtration |
| 04/10/1991 | EP0421261A1 Ion exchange resin device |
| 04/10/1991 | EP0420847A1 Membrane filtration apparatus and method of making a membrane filtration unit |
| 04/10/1991 | CN1050583A Anti-flooding sewage grinder pump liqucd level control system in separately mounted canister |
| 04/10/1991 | CN1050532A Treating phenolic aldehyde bearing waste water by photocatalysis |
| 04/09/1991 | US5006639 Method of coagulating sludge |
| 04/09/1991 | US5006596 Self-inverting, water-in-oil emulsions |
| 04/09/1991 | US5006274 Dithiocarbamate from carbon disulfide and bishexamethylenetriamine; waste water treatment |
| 04/09/1991 | US5006267 Biocidal fluid filters |
| 04/09/1991 | US5006263 Cationic polymers |
| 04/09/1991 | US5006262 Process for recovering copper from copper ion containing aqueous solutions |
| 04/09/1991 | US5006257 Extracts of thermal waters and their applications |
| 04/09/1991 | US5006246 Baffled particulate material housing |
| 04/09/1991 | US5006245 Water purifying device |
| 04/09/1991 | US5006244 Fluid purification device |
| 04/09/1991 | US5006240 Water-treatment system |
| 04/09/1991 | US5006233 Water purification system |
| 04/09/1991 | US5006232 Sewage treatment plant |
| 04/09/1991 | US5006231 Flocculant control system |
| 04/09/1991 | US5006216 Metal removal apparatus |
| 04/09/1991 | US5006133 Method and apparatus for deoxidation of sea-water |
| 04/09/1991 | US5005787 Method and apparatus for bio-regenerative life support system |
| 04/06/1991 | CA2024430A1 Water treatment apparatus |
| 04/04/1991 | WO1991004230A1 Combination type septic tank |
| 04/04/1991 | WO1991004229A1 Water treatment |
| 04/04/1991 | WO1991004228A1 Process for the production of fresh water using water containing impurities and installation for its implementation |
| 04/04/1991 | WO1991004096A1 Removal of mercury from fluids by contact with activated zeolite a |
| 04/04/1991 | WO1991004094A1 Gas-solid photocatalytic oxidation of environmental pollutants |
| 04/04/1991 | WO1991004085A1 Method and apparatus for electrophoretic separations |
| 04/04/1991 | DE3932199A1 Therapeutic bath system with de-contaminant - which together with reservoir and pump. forms enclosed circuit |
| 04/03/1991 | EP0420415A1 Continuous aeration-batch clarification wastewater treatment |
| 04/03/1991 | EP0419842A1 Method for removing halogenated organic contaminants with at least 5 C-atoms from water |
| 04/03/1991 | EP0419841A1 Process for diminishing the AOX-concentration in water |
| 04/03/1991 | EP0419464A1 Process for surface and fluid cleaning |
| 04/03/1991 | EP0196334B1 Method for killing cells, and cytocidal agent |
| 04/03/1991 | CN2074421U Water purifying plant for boiler |
| 04/03/1991 | CN2074299U Antivibration magnetizer |
| 04/03/1991 | CN2074298U Oil-water separator |
| 04/03/1991 | CN2074297U Jet-type vacuum deoxygenation complete equipment |
| 04/03/1991 | CN2074296U Small-size tap water device |
| 04/03/1991 | CN2074146U Magnetizing water health-giving thermos bottle |
| 04/02/1991 | US5004749 And a buffering agent; synergistic biocide |
| 04/02/1991 | US5004551 Catalytic oxidation of hazardous wastes |
| 04/02/1991 | US5004550 Method of paint sludge conversion for disposal |
| 04/02/1991 | US5004549 Adding alkali metal salt of phosphonobutane polycarboxylic acid; controlling concentration and ph |
| 04/02/1991 | US5004541 Fluid purification system |
| 04/02/1991 | US5004537 Ozone water purification system |
| 04/02/1991 | US5004531 Treatment of concentrated industrial wastewaters originating from oil shale and the like by electrolysis polyurethane foam interaction |
| 04/02/1991 | US5004522 Method of treating photographic process waste liquor through concentration by evaporation |
| 04/02/1991 | US5003814 Sampling processes for use in the controlled addition of conditioning material to suspensions, sludges and the like and apparatus thereof |
| 04/02/1991 | US5003784 Apparatus and method of producing an ice slurry at the triple point of a solution |
| 04/02/1991 | CA1282505C Composition and process for reducing color contamination of influent water |
| 04/02/1991 | CA1282504C Method of scavenging hydrogen sulfide |
| 04/02/1991 | CA1282346C Device for the removal of pollutants from the surfaces of water |
| 04/02/1991 | CA1282223C Method of purifying brine for electrolytic chemical production and system for carrying out the same |
| 03/30/1991 | CA2025984A1 Two phase dispenser |
| 03/28/1991 | DE4029454A1 Removing EDTA and complexes from waste water - by oxidn. with persulphate at acid pH |
| 03/27/1991 | EP0419418A2 Anti-bacterial agent for swimming pools, aquariums and lagoons |
| 03/27/1991 | EP0418650A2 Biofilm control |
| 03/27/1991 | EP0418572A1 Device for removing light volatile contaminants from ground water |
| 03/27/1991 | CN2073872U Multifunctional branching high-efficiency water purifying equipment |
| 03/27/1991 | CN1050217A Method and equipments for extracting matter containing fat and proteins from fluid stock |
| 03/27/1991 | CN1050171A Process for purifying effluent from urea production plants |
| 03/26/1991 | WO1991004099A1 Anti-flooding sewage grinder pump liquid level control system in separately mounted canister |
| 03/26/1991 | US5002665 Device for filtering water with filter insert |
| 03/26/1991 | US5002658 Water purification device and method |
| 03/26/1991 | US5002650 Demetallization of solutions by electrolysis, graphite electrodes, air sparging |
| 03/26/1991 | US5002645 Process of separating and recovering metal values from a waste stream |
| 03/26/1991 | US5002204 Drink supply system having sterilization means |
| 03/26/1991 | CA2042050A1 Anti-flooding sewage grinder pump liquid level control system in separately mounted canister |
| 03/26/1991 | CA2023637A1 Continuous aeration-batch clarification wastewater treatment |
| 03/21/1991 | WO1991003428A1 Absorbent materials and use thereof |
| 03/21/1991 | WO1991003427A1 Filtered drinking straw |
| 03/21/1991 | WO1991003309A1 Apparatus and method for removal of liquids |
| 03/21/1991 | WO1991003305A1 Process and installation for extracting fat and/or protein-containing material from fat-containing liquid material, in particular from slaughter deposits and waste |
| 03/20/1991 | EP0418128A1 System for continuously delivering vitamin A in feedwater |
| 03/20/1991 | EP0417847A1 Method for the heterogeneous catalytic photodegradation of pollutants |
| 03/20/1991 | EP0417829A1 Process for purifying the effluent from urea production plants |
| 03/20/1991 | EP0417804A1 Method of anodic deposition of manganese |
| 03/20/1991 | EP0417714A2 Method for removal of dioxin generated in waste combustion |
| 03/20/1991 | EP0417577A1 Treated silica for oil absorption |