| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 07/13/1995 | WO1995018767A1 Process for treating aqueous solutions from production processes |
| 07/13/1995 | CA2180563A1 Process for the wet-oxidising treatment of organic pollutants in waste water |
| 07/12/1995 | EP0662454A1 Process to remove an aqueous effluent containing hydroxynitroaromatic compounds |
| 07/12/1995 | EP0397742B1 Porous article impregnation resin composition, and system for treating impregnation process waste water |
| 07/12/1995 | CN2203300Y Drinking water treatment device |
| 07/12/1995 | CN2203299Y Combined sewage treatment device |
| 07/05/1995 | EP0660949A1 Treatment of photographic effluent |
| 06/28/1995 | EP0659693A2 Process for controlling decontamination of waste waters containing cyanides |
| 06/28/1995 | CN2202126Y Portable magnetic water purifier |
| 06/28/1995 | CN2201874Y Portable cleaning drinker |
| 06/28/1995 | CN1104184A Electrochemical water-purifying device |
| 06/28/1995 | CN1029114C Method for treatment of waste liquid from small paper-pulp mill |
| 06/28/1995 | CN1029090C Treatment of waste and rotary kiln therefor |
| 06/21/1995 | CN2201395Y Ionic water producer |
| 06/20/1995 | CA1336020C Clarification process |
| 06/14/1995 | EP0656966A1 Method of treating process water. |
| 06/14/1995 | DE4442226A1 Thixotropic sludge decontamination contg. lignin esp. from pulp mfr. |
| 06/14/1995 | CN2200634Y Separation combined water purification equipment |
| 06/13/1995 | US5424032 Method and apparatus for controlling microorganisms |
| 06/13/1995 | US5423981 Wastewater treatment apparatus |
| 06/13/1995 | US5423191 Circulating cold water cooler-chiller |
| 06/10/1995 | CA2137754A1 Membrane bioreactor system for treating contaminated water from a cleaning system |
| 06/07/1995 | CN2199981Y Electrothermal distiller for purifying potable water |
| 06/07/1995 | CN1103385A Process and apparatus for purifying streams |
| 06/07/1995 | CN1103384A Hot mineral water pot |
| 06/06/1995 | US5422013 Device and method of producing pure water |
| 06/01/1995 | WO1995014639A1 Process for the treatment of waste water containing organic and inorganic compounds |
| 05/31/1995 | EP0655418A1 Submerged membrane filter plant for producing drinking water |
| 05/31/1995 | CN2199201Y Inside purifying mineralizing magnetizer |
| 05/31/1995 | CN2199195Y Iodide adding water purifier |
| 05/31/1995 | CN2199186Y Multipurpose household apparatus for preparing, magnetizing and mineralizing distilled water |
| 05/30/1995 | US5419836 Chemical feed system |
| 05/26/1995 | WO1995013991A1 Method for purifying process water from pulp manufacture |
| 05/26/1995 | CA2176001A1 Method for purifying process water from pulp manufacture |
| 05/24/1995 | EP0654015A1 Process and device for the biological treatment of organically polluted waste water and organic waste. |
| 05/23/1995 | US5417937 Apparatus for wet oxidation |
| 05/18/1995 | DE4338851A1 Treatment of water contaminated with radioactive nuclides, bacteria and chemicals |
| 05/18/1995 | DE4338491A1 Process applies electrical voltage to macromolecules and/or microorganisms in organic effluent |
| 05/17/1995 | CN2197359Y Water tank with purifying, minerizing, magnetizing and fitering functions |
| 05/17/1995 | CN2197110Y Combined water purifier |
| 05/16/1995 | US5415848 Reducing chromium with ferrous sulfate and precipitation with barium nitrate |
| 05/16/1995 | US5415785 Scavenging with a reactive amine-formaldehyde reaction product |
| 05/16/1995 | US5415778 Humic and fulvic acids; water pollution control |
| 05/16/1995 | US5415770 Water treatment, zinc-copper |
| 05/10/1995 | EP0651730A1 Method and apparatus for controlling microorganisms. |
| 05/10/1995 | EP0651726A1 BOILER OPERATION WITH DECREASED NO x? AND WASTE WATER DISCHARGE |
| 05/10/1995 | EP0530219B1 Process for treating waste water |
| 05/09/1995 | US5413706 Wastewater treatment apparatus with an outer filtration unit and an inner settling unit |
| 05/03/1995 | CN2196113Y Multifunction health-care drinking water pipe |
| 05/02/1995 | US5411661 Water filter module |
| 04/27/1995 | WO1995011199A1 Processes for the treatment of acidic liquors and for the production of commercial products thereby |
| 04/27/1995 | DE4335669A1 Arrangement and process for water treatment |
| 04/27/1995 | CA2174667A1 Processes for the treatment of acidic liquors and for the production of commercial products thereby |
| 04/25/1995 | US5409673 An ozone apparatus comprising a dielectric tube, an outer and inner electrode, cohesive sponge-like mass permeable for oxygen and helical windings for creating an electrical corona; simplification |
| 04/25/1995 | US5409616 Controlling supply of uncleaned water, transtering to storage, ozonization, filtration, delivering, recirculation |
| 04/25/1995 | US5409604 Closure for a wastewater treatment mechanism |
| 04/25/1995 | US5409582 Passing aqueous solution containing ionic silver and copper through electrowinning cell at first potential to deplete silver, diluting and electrowinning at a second potential to deplete copper |
| 04/20/1995 | WO1995010483A1 Treatment of aqueous phosphorus wastes |
| 04/20/1995 | DE4437278A1 Verfahren zur Entfernung von Cyanid-Verunreinigungen aus Raffinerie-Abwasserströmen A process for removing cyanide impurities from refinery waste streams |
| 04/20/1995 | DE4407734C1 Process for cleaning and reusing surfactant-containing waste waters |
| 04/20/1995 | DE4335133A1 Process for cleaning up leachate waters from house refuse landfills and industrial wastewaters containing heavy metals |
| 04/19/1995 | EP0648193A1 Process and system for purifying waste water |
| 04/19/1995 | CN2194907Y Multifunctional continuous ion water generator |
| 04/19/1995 | CN2194906Y Mineratizing and magnetizing drinking fountain |
| 04/18/1995 | US5407576 Process for the purification of waste water |
| 04/18/1995 | US5407572 Systematic tertiary effluent polishing |
| 04/15/1995 | CA2119193A1 Solution decontamination method using precipitation and flocculation techniques |
| 04/13/1995 | WO1995009818A1 Method of wastewater treatment using a chemical precipitation-microfiltration-nanofiltration hybrid system |
| 04/13/1995 | WO1995009817A1 Process for making paper and cardboard |
| 04/13/1995 | CA2169570A1 Process for making paper and cardboard |
| 04/12/1995 | EP0647597A1 Installation for treating and recycling washing water of a washing machine |
| 04/12/1995 | CN2194357Y Waste water comprehensive purifying treatment equipment |
| 04/12/1995 | CN1101329A Method for treating heavy metal containing waste water by utilization of acorn |
| 04/11/1995 | US5405532 Neutralization and biological purification; aftertreatment by nanofiltration and oxidation |
| 04/11/1995 | US5405526 Bottle water disinfectant system |
| 04/06/1995 | WO1995009129A1 Bottle water disinfection system |
| 04/05/1995 | CN1101012A Device for preparation of magnetized distilled water |
| 04/04/1995 | US5403440 Use of compounds containing polyether chains prepared from epoxidized carboxylic acid derivatives for the removal of printing inks from wastepaper |
| 03/29/1995 | CN1100702A Method and apparatus for purifying waste water |
| 03/29/1995 | CN1100701A Method of and apparatus for removing iron from sewage of low concentration |
| 03/28/1995 | US5401420 Sulfide ion-selective electrodes for control of chemical feed of organic sulfide products for metal ion precipitation from waste water |
| 03/28/1995 | US5401362 Control of metals and dissolved organics in the bleach plant |
| 03/23/1995 | WO1995007744A1 System and method of processing mixture of solids and liquids |
| 03/23/1995 | CA2132513A1 Water treatment method and water treatment apparatus |
| 03/22/1995 | EP0644159A2 Water treatment method and apparatus on the basis of a liquid cyclone |
| 03/22/1995 | EP0643674A1 Process and apparatus for purifying streams. |
| 03/22/1995 | EP0643673A1 Removal of cyanide from water. |
| 03/22/1995 | EP0568597B1 A method of and an apparatus for separating liquid manure into a thick slurry phase with high dry matter content and an aqueous phase with desired - high, moderate or low - n-content |
| 03/21/1995 | US5399263 Water purifier |
| 03/21/1995 | US5399260 Field portable water purification system |
| 03/16/1995 | WO1995007238A1 Sewage treatment apparatus and method |
| 03/16/1995 | CA2166559A1 Sewage treatment apparatus and method |
| 03/15/1995 | EP0642610A1 Treatment of bleach plant effluents |
| 03/14/1995 | US5397500 Compositions for treating waste water which contains heavy metals |
| 03/14/1995 | US5397482 Treatment of cyanides in effluents with Caro's acid |
| 03/14/1995 | US5397478 Fixation and stabilization of chromium in contaminated materials |
| 03/14/1995 | US5397468 Water purifier cartridge coupling |
| 03/09/1995 | DE4330518A1 Apparatus and process for treating waters and wastewaters |
| 03/08/1995 | EP0641743A1 Treatment of pulp and paper wastewater with reducing agent and a polymer for color removal |
| 03/08/1995 | EP0641293A1 Dewatering of aqueous suspensions |