| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 03/24/1992 | US5098568 Septic tank system with controllable distribution means |
| 03/24/1992 | US5098567 Waste water treating process |
| 03/24/1992 | US5098562 Apparatus for treating deaerated water |
| 03/24/1992 | US5098538 Electroacoustic soil decontamination |
| 03/24/1992 | US5097556 Laundry waste water treatment and wash process |
| 03/24/1992 | CA1297684C Steam driving force installation used for the production of steamform salt raw water |
| 03/20/1992 | WO1992005118A1 REMOVAL OF AOX FROM BLEACH PLANT MILL EFFLUENTS BY pH SHIFT USING THE ALKALINITY/ACIDITY SOURCES AVAILABLE AT THE MILL |
| 03/19/1992 | WO1992004660A1 Effluent treatment |
| 03/19/1992 | WO1992004283A1 Improved filtration technique |
| 03/19/1992 | WO1992004282A1 Effluent treatment |
| 03/19/1992 | WO1992004098A1 Contact lens purification system |
| 03/19/1992 | DE4029071A1 Device for evaporation esp. flash evapn. of liq. prods. - comprises vessel with upper vapour outlet and vertical perforated inlet pipe surrounded by sloping horizontal evapn. surfaces |
| 03/18/1992 | EP0475930A1 Gas sparged centrifugal separation and/or mixing |
| 03/18/1992 | EP0475641A1 Heterocyclic-amine aldehyde reaction products useful for the suppression of hydrogen sulfide |
| 03/18/1992 | EP0475602A2 Tagged polymers and their synthesis by post polymerization (trans) amidation reaction |
| 03/18/1992 | EP0475542A1 Process and apparatus for removing heavy metals from aqueous media by means of a bioadsorber |
| 03/18/1992 | EP0475479A1 Method and device for fighting jellyfish in seawater |
| 03/18/1992 | EP0475289A1 Method of recovering nickel |
| 03/18/1992 | EP0474936A1 Electrochemical process for purifying chromium-containing wastes |
| 03/18/1992 | EP0474895A1 Process for anaerobic treatment of waste water |
| 03/18/1992 | CN2099123U Magnetic water-cleaning device |
| 03/18/1992 | CN2099122U Magnetizing device with permanent magnet |
| 03/18/1992 | CN2098878U Multi-function kettle |
| 03/18/1992 | CN1059560A Thallus separating method of fermented liquid or effluent in gourmet powder prodn. |
| 03/18/1992 | CN1059556A Water processing method for beer brewage |
| 03/18/1992 | CN1059512A Reclamation of oxalic acid from effluents of antibiotic prodn. |
| 03/18/1992 | CN1059506A Technology for processing effluent of priming dinitrodiazophenol prodn. |
| 03/18/1992 | CN1059505A Composite flocculant containing polymerized silicic acid and aluminium and its prepn |
| 03/18/1992 | CN1015884B Process for the treatment and purification of water by the flocculation of suspended particles in a fluidized bed |
| 03/18/1992 | CN1015883B Process for the hydrolysis of urea in dilute aqueous urea solution |
| 03/18/1992 | CA2050791A1 Method of treating waste water for organic contaminants with organically modified smectite clay compositions |
| 03/17/1992 | US5096601 Method for controlling zebra mussels using quaternary ammonium compositions |
| 03/17/1992 | US5096600 Method for decontaminating soils |
| 03/17/1992 | US5096599 Process for purifying the effluent from urea production plants |
| 03/17/1992 | US5096596 Process and apparatus for removal of mineral contaminants from water |
| 03/17/1992 | US5096589 Hydrogen sulfide removal from reverse osmosis product water |
| 03/17/1992 | US5096580 Iron removal system and method |
| 03/17/1992 | US5096574 Reverse osmosis system |
| 03/17/1992 | US5096544 Seawater pre-deaerator for open-cycle ocean thermal energy conversion applications |
| 03/17/1992 | US5096543 Carrier gas apparatus for evaporation and condensation |
| 03/17/1992 | US5096054 Electrochemical method for the removal of nitrogen oxides and sulfur oxides from flue gas and other sources |
| 03/17/1992 | US5095975 Arrangement for driving volatile impurities from ground water |
| 03/17/1992 | CA1297405C Preservative for drinking water |
| 03/17/1992 | CA1297263C Method and apparatus for sterilizing aqueous media, more particularly drinking water |
| 03/15/1992 | CA2091585A1 Water treatment process by electrolysis, in particular for decarbonation, and apparatus for carrying out this process |
| 03/15/1992 | CA2050504A1 Porous polysulfone media suitable for filtration |
| 03/14/1992 | CA2051016A1 Nickel recovery process |
| 03/13/1992 | CA2025210A1 Method for generating coarse precipitates from solutions or slurries containing acids or metal salts |
| 03/12/1992 | DE4028529A1 Domestic water purifier - has filters, chemical cleaning and sterilising units, bar-coded filter elements and microprocessor control |
| 03/12/1992 | DE4028245A1 Control of bio-slimes |
| 03/12/1992 | DE4028239A1 Formamidine sulphinic acid used as oxygen@ binder - pref. in aq. alkaline soln. esp. cyanide soln. contg. noble metal cyano complex for cementation with zinc@ |
| 03/12/1992 | DE4028045A1 Procedure and device for treatment of water with ozone to remove metal ions - measurement of ozone content of treated water before filtration is used to adjust ozone content by controlled dosing with raw water |
| 03/11/1992 | EP0474370A1 Composite semipermeable membrane, process of producing the same and method of producing highly pure water using the same |
| 03/11/1992 | EP0474325A1 Process and apparatus for anaerobic biological purification of water polluted with organic compounds |
| 03/11/1992 | EP0474296A1 Apparatus for the purification of waste water |
| 03/11/1992 | EP0473750A1 Process for removing ammonium compound impurities from industrial, agricultural or private waste water |
| 03/11/1992 | EP0473653A1 Effluent treatment. |
| 03/11/1992 | EP0428512A4 Ozone generation by corona discharge at elevated pressures |
| 03/11/1992 | CN2098501U Purifying and mineralizing apparatus for drinking water |
| 03/11/1992 | CN2098500U Vacuum deoxidising apparatus |
| 03/11/1992 | CN1059322A Alkaliferous industrial waste water and waste slag treatment method |
| 03/11/1992 | CN1059321A Ion-exchange processing device and its method |
| 03/11/1992 | CN1059299A Water-flow classifying device with ion exchange resin |
| 03/11/1992 | CN1059291A Single-tower gaseous extracting method with side-draw for recovering sulfur and ammonia from acidic waste water of oil refinery |
| 03/11/1992 | CN1015802B Internally installed fluid magnetic core |
| 03/10/1992 | US5094867 Crosslinked vinyl-heterocycle polymer |
| 03/10/1992 | US5094814 All-volatile multi-functional oxygen and carbon dioxide corrosion control treatment for steam systems |
| 03/10/1992 | US5094758 Desalinization system and method |
| 03/10/1992 | US5094743 Fluid purifying apparatus and method of purifying fluids |
| 03/10/1992 | US5094742 Magnetic water conditioning shower arm |
| 03/10/1992 | US5094739 Magnesium electrode |
| 03/10/1992 | US5094734 Water treatment unit |
| 03/10/1992 | US5094732 Process and apparatus for removing nitrates from a water stream during the treatment of process water |
| 03/10/1992 | CA1297067C System and method for removing volatile components from an aqueous medium |
| 03/10/1992 | CA1296944C Baling machines and baled products |
| 03/10/1992 | CA1296899C Time-controlled processes for agglomerating coal |
| 03/08/1992 | CA2050697A1 Apparatus for the purification of waste water |
| 03/07/1992 | CA2050531A1 Use of formamidine sulfuric acid as an oxygen scavenger |
| 03/05/1992 | WO1992003389A1 Process for producing biscuit-fired ceramic and process for producing eco-environmental water |
| 03/05/1992 | WO1992003385A1 Process for treatment of waste waters or equivalent impure waters as well as a flocculating adjuvant used in the process |
| 03/05/1992 | WO1992003220A1 Aeration apparatus with draft tube |
| 03/05/1992 | WO1992003219A1 Aeration apparatus with diffuser |
| 03/05/1992 | WO1992003203A1 An apparatus and a method for treating emulsified liquids |
| 03/05/1992 | WO1992003202A2 Medical drug formulation and delivery system |
| 03/05/1992 | DE4027880A1 Cleaning of waste material from building industry - by separating fine sand before adding flocculating medium |
| 03/05/1992 | CA2092201A1 Medical drug formulation and delivery system |
| 03/05/1992 | CA2050534A1 Apparatus for treatment of affluent |
| 03/05/1992 | CA2047379A1 Floatation separation system |
| 03/04/1992 | EP0473486A1 Process for controlling the operation modes of an automatic water filtration apparatus having tubular membranes |
| 03/04/1992 | EP0473087A2 Process for reducing the concentration in solution of a particular ion or a particular group of ions |
| 03/04/1992 | EP0472967A1 Device for removing volatile contaminants from groundwater |
| 03/04/1992 | EP0472705A1 Method and apparatus for treatment of liquid photographic processing wastes. |
| 03/04/1992 | EP0366724B1 Barometric direct-contact condenser |
| 03/04/1992 | CN2097839U Seal multi-layer plate type no-diaphragm electrolysis generator |
| 03/04/1992 | CN2097831U Mine water magnetization unit |
| 03/04/1992 | CN2097830U Power magnetization soft water unit |
| 03/04/1992 | CN2097829U Water magnetization device |
| 03/04/1992 | CN2097828U Strong magnetization, no-scale water-boiling unit |
| 03/04/1992 | CN2097827U Floating oil recovering and separating device |
| 03/04/1992 | CN2097582U Magnetic cup |