| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 04/12/1992 | WO1992007108A1 Oxygen removal with keto-gluconates |
| 04/11/1992 | CA2027297A1 Method to inhibit the formation of algae in a swimming pool |
| 04/09/1992 | DE4031664A1 Agent for preventing growth of bacteria in water - comprising benzoic acid or derivs., for circulation of water plant, fountains, etc. |
| 04/09/1992 | DE4031069A1 Agent for nitrification or denitrification of liq., esp. water - contg. salt of tri:valent or tetra:valent metal, esp. iron@, aluminium@ or cerium@, and opt. cationic (co)polymer |
| 04/09/1992 | DE4029211C1 Separator for liquids - has cylindrical vessel with flotation basin and annular main liquids duct |
| 04/08/1992 | EP0479670A1 Pretreatment of sodium and potassium ions containing wastes and residues |
| 04/08/1992 | EP0479616A1 Dewatering compositions and processes |
| 04/08/1992 | EP0479569A2 Tube clarifier method for monitoring and/or controlling clarification processes |
| 04/08/1992 | EP0479405A1 Method for preventing growth or attachment of zebra mussels |
| 04/08/1992 | EP0479258A1 Solvent extraction process for treatment of oily substrates |
| 04/08/1992 | EP0479218A1 Flocculant for water treament and method for producing it |
| 04/08/1992 | EP0478718A1 Electrode arrangement for electrolytic purposes. |
| 04/08/1992 | EP0478605A1 Device for organic neutralization and removal of phosphorus compounds present in water basins. |
| 04/08/1992 | CN2101321U Magnetising deivce for beverage |
| 04/08/1992 | CN2101153U Water tap magnetization device |
| 04/08/1992 | CN2101042U Transistor high frequency boiler water quality processing instrument |
| 04/08/1992 | CN2101041U Rotating platform type oil recovery machine |
| 04/08/1992 | CN2101040U Sewage removing device for oil sewage |
| 04/08/1992 | CN2100838U Magnetizing thermos cup |
| 04/08/1992 | CN2100837U Magnetizing water thermos bottle |
| 04/08/1992 | CN2100818U Insulating dark-red pottery magnetic cup |
| 04/08/1992 | CN1060128A Comprehensive treatment for extracting humic acid from paper making black liquor |
| 04/07/1992 | US5102917 Blending with particular solid and second polymer; extrusion, leaching of second polymer and solid |
| 04/07/1992 | US5102556 Method for rendering ferric hydroxide sludges recyclable |
| 04/07/1992 | US5102548 Pretreatment of high biological oxygen demand wastes prior to treatment by municipal waste treatment facility |
| 04/07/1992 | US5102542 Construction of canister-type filters |
| 04/07/1992 | US5102515 Ionizing electroconductive fluid using long resistive path, inhibited current flow; preventing precipitation of dissolved solids |
| 04/07/1992 | US5102503 Mobile self-contained system for on-site recovery of solvents |
| 04/06/1992 | CA2052655A1 Process for treating refinery slurries |
| 04/05/1992 | CA2052742A1 Dewatering compositions and processes |
| 04/05/1992 | CA2052529A1 Tube clarifier method for monitoring and/or controlling clarification processes |
| 04/03/1992 | CA2052497A1 Solvent extraction process for treatment of oily substrates |
| 04/02/1992 | WO1992005117A1 Process for purifying water |
| 04/02/1992 | WO1992005116A1 Water treatment process by electrolysis, in particular, for water decarbonation, and apparatus for carrying out this process |
| 04/02/1992 | WO1992004969A1 Water dispenser |
| 04/02/1992 | WO1992004956A1 Process and device for disposing of industrial liquid wastes containing glycol |
| 04/02/1992 | DE4129732A1 Appts. for cleaning waste water - comprises water container, pump, drive system, carbonising chamber and filter contg. activated carbon |
| 04/02/1992 | DE4115686A1 Thermal treatment of washing water from dye-penetrant crack detection - contaminated water is heated to breakdown emulsifiers etc. and separates by gravity into clean water with floating oily phase |
| 04/02/1992 | DE4030913A1 Removing hardness forming and heavy metal ions from water - by treatment with strong acid cation exchanger in sodium form followed by reverse osmosis |
| 04/02/1992 | DE4030668A1 Appts. for redn. of vol. of biological sludge - has cell structure of sludge is broken down by mechanicaldisintegrator and resulting material is subjected to further biological treatment |
| 04/02/1992 | DE4030488A1 Verfahren zur wasserreinigung Method for water purification |
| 04/02/1992 | CA2038003A1 Zebra mussel control chemical |
| 04/02/1992 | CA2026612A1 Electrochemical process for purifying chromium-containing wastes |
| 04/01/1992 | EP0478528A1 Method and apparatus for beneficiating wastewaters |
| 04/01/1992 | EP0478293A2 Methods for removing solids from solvent-based/water-based paint systems |
| 04/01/1992 | EP0477954A1 Iodine resin/carbon water purification system |
| 04/01/1992 | EP0477689A1 Process for the preparation of porous polysulfone media suitable for filtration |
| 04/01/1992 | EP0477262A1 Method and device for electroactivating fluids. |
| 04/01/1992 | EP0228396B2 Arrangement for the flocculation of flocculable substances, particularly for the purification of effluents from deinking installations for used paper processing |
| 04/01/1992 | CN2100532U Multi-functional water-saving tap |
| 04/01/1992 | CN2100390U Device of treatment of chromium-containing industry waste water |
| 04/01/1992 | CN2100389U Cement concrete magnetizer |
| 04/01/1992 | CN2100388U Health magnetic drinking cup |
| 04/01/1992 | CN2100387U Oil-water separator |
| 04/01/1992 | CN2100154U New-type magnetic cup |
| 04/01/1992 | CN1059887A Disinfectant for purifying water and productive process thereof |
| 04/01/1992 | CN1059886A Preparation of high-efficiency coagulant and process for treating waste liquid from paper mill |
| 04/01/1992 | CN1016057B Process for treatment of mn contg. waste water by extraction |
| 03/31/1992 | USRE33861 Pool chemical dispenser |
| 03/31/1992 | US5100951 Stable blends of cationic water-in-oil emulsion polymers and cationic aqueous solution polymers |
| 03/31/1992 | US5100561 Cationic polymers for sludge dewatering |
| 03/31/1992 | US5100559 Treatment methods for breaking certain oil and water emulsions |
| 03/31/1992 | US5100542 Dispenser of liquid agent for treating a recirculated body of water |
| 03/31/1992 | US5100521 Process and an arrangement for preparing ozonic gases and solutions |
| 03/31/1992 | CA1298419C Chlorine oxidation waste water treatment method |
| 03/31/1992 | CA1298350C Electrodeless detector |
| 03/31/1992 | CA1298088C Anionic flocculant for dewatering steel mill sludges |
| 03/31/1992 | CA1298064C Process for the thermal decomposition of toxic refractory organic substances |
| 03/28/1992 | CA2060134A1 Methods for removing solids from solvent-based/water-based paint systems |
| 03/28/1992 | CA2052200A1 Iodine resin/carbon water purification system |
| 03/28/1992 | CA2042630A1 Method and apparatus for beneficiating waste-waters |
| 03/26/1992 | DE4030331A1 Verfahren und vorrichtung zur entsorgung von glykolhaltigen betriebsfluessigkeiten Method and device for disposal of glycol-containing betriebsfluessigkeiten |
| 03/26/1992 | DE4029892A1 Crosslinked polymer activated with sulphide¨ metal sepn. agent - esp. waste rubber, used for continuous removal of heavy metals from water, for metal regeneration |
| 03/25/1992 | EP0477034A1 Low salt level sensor |
| 03/25/1992 | EP0476773A1 Method for the removal of fluoride from waste water |
| 03/25/1992 | EP0476668A1 Method and device for conditioning and subsequent dewatering of sludges |
| 03/25/1992 | EP0476509A2 A method of treating waste water for organic contaminants with water dispersible organically modified smectite clay compositions |
| 03/25/1992 | EP0476354A2 Process and plant for treating a scrubber sludge resulting from flue gas desulfurization |
| 03/25/1992 | EP0476335A2 Device for medical disinfection |
| 03/25/1992 | EP0476135A1 Selective adsorbent for ammonuim ion and ammonia and preparation thereof |
| 03/25/1992 | EP0391924B1 Hypobromination of water |
| 03/25/1992 | CN2099758U Pulse type settler |
| 03/25/1992 | CN2099757U Multiple magnetic-pole strong magnetic field magnetic water absorption tube |
| 03/25/1992 | CN2099756U Magnetization machine |
| 03/25/1992 | CN2099755U Resonance magnetic water device |
| 03/25/1992 | CN2099754U Magnetic scale removing device |
| 03/25/1992 | CN2099753U Electrolytic processing device |
| 03/25/1992 | CN2099752U Aluminium no-load current coagulating fluorine-reduction installation |
| 03/25/1992 | CN2099751U Ion-exchange fibre-softening apparatus for boiler |
| 03/25/1992 | CN2099611U Double convective ion exchanger |
| 03/25/1992 | CN2099602U Domestic water magnetization purifier |
| 03/25/1992 | CN2099524U Magnetic water bottle |
| 03/25/1992 | CN2099520U Mineral spring kettle |
| 03/25/1992 | CN1059706A Technology and apparatus for removing the six valences of cd. from living drink water by electro-chemistry method |
| 03/24/1992 | US5098605 Demulsification of an oil in water emulsion using a P-hydroxystyrene polymer derived from P-acetoxystyrene or a copolymer |
| 03/24/1992 | US5098582 Divalent silver oxide bactericides |
| 03/24/1992 | US5098579 Process for removing heavy metals and other ions from an aqueous solution |
| 03/24/1992 | US5098578 Precipitation of metals |
| 03/24/1992 | US5098573 Binary concentration and recovery process |
| 03/24/1992 | US5098572 Method and apparatus for increasing sludge concentration in water purification installations |