| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 02/02/1999 | US5865966 Non-membrane electrolytic cell for electrolysis of water |
| 02/02/1999 | CA2175053C Perchlorate removal process |
| 02/02/1999 | CA2049819C Operating modes control process for an automatic water filtration device mounted on tubular membranes |
| 01/28/1999 | WO1999003786A1 Method of treating solvent-containing process liquids |
| 01/28/1999 | WO1999003785A1 Device for treatment and removal of aqueous liquids by controlled atmospheric action |
| 01/28/1999 | WO1999003592A1 Fluid conditioning system and method |
| 01/28/1999 | DE19747793C1 Simple, cost-effective, almost quantitative removal of white phosphorus from mixture |
| 01/28/1999 | DE19731887A1 Sterile filtration assembly for treating e.g. rain water |
| 01/28/1999 | DE19731616A1 Metal ion removal from electrolyte |
| 01/28/1999 | CA2295521A1 Fluid conditioning system and method |
| 01/27/1999 | EP0893739A1 Process and device for the posttreatment of aqueous suspensions issued from the development of exposed lithographic printing plates |
| 01/27/1999 | EP0893412A2 Method and apparatus for preventing biofouling in cooling water system |
| 01/27/1999 | EP0893411A1 Apparatus for improving UV dosage applied to fluids in open channel UV disinfection systems |
| 01/27/1999 | EP0893410A2 Process for the purification of waste water containing organic and optionally inorganic sulfur compounds |
| 01/27/1999 | EP0893127A1 Batch liquid purifier |
| 01/27/1999 | EP0893126A1 Batch liquid purifier |
| 01/27/1999 | EP0892763A1 Water purification device |
| 01/27/1999 | EP0892677A1 Electrodeionization apparatus and method |
| 01/27/1999 | CN2305402Y Chlorine dioxide water disinfectant generator |
| 01/27/1999 | CN2305401Y Integrated high turbidity continuous water purifier |
| 01/27/1999 | CN2305400Y Reverse osmosis pure water machine with back flushing type front precision safety filter system |
| 01/27/1999 | CN1206388A Reducing electrolytic water and method for preparing the same |
| 01/27/1999 | CN1205990A Ozone disinfecting drinking water system for use in building |
| 01/27/1999 | CN1205989A Underground sewage percolating and middle water reusing technology |
| 01/27/1999 | CN1205987A Recovering treatment method for suspension in waste water during catalyst production |
| 01/27/1999 | CN1205986A Ultraviolet disinfecting drinking-water system |
| 01/27/1999 | CN1205985A Treatment process of naphthenic acid effluents in oil refinery |
| 01/27/1999 | CN1205984A Scale-less effluents evaporating concentration process |
| 01/27/1999 | CN1205983A Multisection stripping process for treating acid sewage from oil refinery |
| 01/27/1999 | CN1205982A Waste liquid recovering and regenerating device |
| 01/26/1999 | US5864596 Minimizing the accumulation of metal-oxide deposits |
| 01/26/1999 | US5863982 Water-in-oil emulsion with droplet size of about 200 to about 4000 |
| 01/26/1999 | US5863444 Chemical reduction of nitrate anion in water to nitrite, lowering ph and gas stripping to remove nitrous acid |
| 01/26/1999 | US5863442 Electrodeposition of silver, acidification of fixer bath with hydrogen chloride to precipitate sulfur, mixing solution with spent developer, adjustment to ph 2, heating and drawing off sulfur dioxide, then basification to liberate ammonia |
| 01/26/1999 | US5863441 Three zone dissolved air flotation clarifier with improved efficiency |
| 01/26/1999 | US5863440 Deploying to oil spill a plurality of bouyant porous mesh sacks filled with oleophilic polymer which captures oil for recovery; water pollution control |
| 01/26/1999 | US5863422 Water pollution control apparatus for acid mine drainage neutralization |
| 01/26/1999 | US5863421 Hemodialysis machine with automatic priming by induced pressure pulses |
| 01/26/1999 | US5862992 Adjustable dual cone spray pattern valve apparatus and related methods |
| 01/26/1999 | CA2155900C Control mechanism for water treatment apparatus |
| 01/26/1999 | CA2120005C A dewatering method and agent |
| 01/25/1999 | CA2243881A1 Process for the purification of waste waters containing organic and, should the situation arise, inorganic sulphur compounds |
| 01/21/1999 | WO1999002930A1 Evaporative condensation type ammonia refrigeration unit |
| 01/21/1999 | WO1999002863A1 Compressor assembly |
| 01/21/1999 | WO1999002770A1 Use of cationic polyelectrolytes and surfactants in the deinking of wastepaper |
| 01/21/1999 | WO1999002457A2 Method for removing pollutant organic fluids from surface water |
| 01/21/1999 | WO1999002239A1 Method and apparatus for treating water |
| 01/21/1999 | WO1999002037A1 Synergistic antimicrobial compositions containing a dimethylamide of a carboxylic acid with a mixture of 2-(thiocyanomethylthio) benzothiazole and methylene-bis(thiocyanate) |
| 01/21/1999 | DE19737486C1 Environmentally-friendly cleaning of materials containing hydrophobic components |
| 01/21/1999 | DE19730469A1 Hydrophilic porphyrin derivatives including modified polymers |
| 01/21/1999 | CA2294845A1 Synergistic antimicrobial compositions containing a dimethylamide of a carboxylic acid with a mixture of 2-(thiocyanomethylthio) benzothiazole and methylene-bis(thiocyanate) |
| 01/21/1999 | CA2294726A1 Method for removing pollutant organic fluids from surface water |
| 01/21/1999 | CA2211087A1 Apparatus for enhancing the cleaning of laundry |
| 01/20/1999 | EP0891977A1 5-(4-Hydroxyphenyl)-porphyrin derivatives as photosensitisers |
| 01/20/1999 | EP0891952A1 Apparatus for indicating the depletion of a purification medium |
| 01/20/1999 | EP0891951A1 Method and apparatus for treating selenium-containing waste water |
| 01/20/1999 | EP0891950A1 Process for treating solvent containing process liquids |
| 01/20/1999 | EP0891302A2 Process for the biological purification of waste water |
| 01/20/1999 | EP0891300A1 Method of treating drinking water for consumption |
| 01/20/1999 | EP0891213A1 Extraction of organic compounds from aqueous surfactant-containing solutions |
| 01/20/1999 | EP0828639B1 Vehicle treatment process and installation |
| 01/20/1999 | EP0770038B1 Transportable device for preparing drinking water |
| 01/20/1999 | EP0717724B1 Sewage treatment apparatus and method |
| 01/20/1999 | EP0712381B1 Method of purifying waste water from dairies |
| 01/20/1999 | CN2304654Y Apparatus for heating or distilling water |
| 01/20/1999 | CN1205653A Process for purifying liquid contaminated by filamentary molecules |
| 01/20/1999 | CN1205648A Extraction method and appts. |
| 01/20/1999 | CN1205309A Integral waste water treating tech. by microelectrolysis reaction and dissolved air airfloat |
| 01/20/1999 | CN1205308A Compounded flocculant and its prepn. process |
| 01/20/1999 | CN1205244A Hydrogenation catalysts |
| 01/20/1999 | CN1205241A Separating appts. of vertical electrophoresis charge particles |
| 01/20/1999 | CN1041694C Method for expected ions thickened and separated from multi-ion source solution and used solid compound |
| 01/19/1999 | US5862449 Photocatalytic reactor |
| 01/19/1999 | US5861133 Salt formation from aluminum compound, zinc compound with nickel, copper, cobalt and magnesium |
| 01/19/1999 | US5861123 Decontamination of liquids and gases in channels |
| 01/19/1999 | US5861100 Activated sludge process |
| 01/19/1999 | US5861098 Separation chamber having heater to reduce viscosity of lighter fluid and increase specific gravity gradient between them |
| 01/19/1999 | US5861096 Odor Control In Industrial Lagoons |
| 01/19/1999 | US5861090 Detoxification; water pollution control |
| 01/19/1999 | US5860767 High-vacuum groundwater and soil remediation system and related method and apparatus |
| 01/19/1999 | CA2243415A1 A device for indicating the depletion of a purifying agent |
| 01/19/1999 | CA2212503C Domestic water clarifier |
| 01/19/1999 | CA2166855C Process for deactivating or destroying microorganisms |
| 01/19/1999 | CA2156100C Control mechanism for a water conditioning system |
| 01/18/1999 | CA2240004A1 Water purification system |
| 01/18/1999 | CA2209038A1 Insulating jacket for tanks in portable water distillers |
| 01/14/1999 | WO1999001607A2 Enzymatic oxidation system with novel enzymatic-effect enhancing compounds |
| 01/14/1999 | WO1999001383A1 Treatment of acidic water containing dissolved ferrous cations |
| 01/14/1999 | WO1999001382A1 Method and apparatus for decontamination of fluids |
| 01/14/1999 | WO1999001381A1 Sterilizing device for a medium, preferably water |
| 01/14/1999 | WO1999001380A1 Method and apparatus for environmentally friendly desalting of sea-water |
| 01/14/1999 | WO1999001220A1 Water container with filter cartridge |
| 01/14/1999 | WO1999001200A1 Apparatus and method for continuous vacuum filtering, with endless belt |
| 01/14/1999 | DE19830311A1 Waste water treatment settlement circular basin |
| 01/14/1999 | DE19729680A1 Waste water treatment system comprises series of drums containing solid substances |
| 01/14/1999 | DE19729493A1 Process to recover the electrolyte and water discharged form electrolytic bath |
| 01/14/1999 | CA2295944A1 Sterilizing device for a medium, preferably water |
| 01/13/1999 | EP0890561A2 Mobile system for the treatment of manure |
| 01/13/1999 | EP0890552A2 Corrosion protection device for water distribution systems |
| 01/13/1999 | EP0890551A2 Steam heated apparatus to evaporate or concentrate liquids |