| Patents for C02F 9 - Multistep treatment of water, waste water or sewage (41,429) |
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| 10/12/1988 | EP0286582A2 Installation for biological waste water purification |
| 10/12/1988 | EP0286036A2 Process and installation for treating dissolved and undissolved substances containing industrial waste water |
| 10/12/1988 | CN88105013A Method and installations for purification of bath water |
| 10/06/1988 | WO1988007500A1 Water purification system with purified water cooling apparatus |
| 10/06/1988 | DE3709570A1 Process for eliminating traces of elemental mercury from water |
| 10/05/1988 | EP0284754A1 A process for treating polluted soils |
| 10/04/1988 | US4775480 Membrane processes for treatment of and recovery of components from kraft black liquors |
| 09/28/1988 | EP0283600A1 Landfill disposal of material containing vanadium |
| 09/27/1988 | US4773993 Reverse osmosis, polisher, u v sterilizer; pharmaceuticals, semiconductors |
| 09/21/1988 | CN87101825A Sewage treatment equipment |
| 09/20/1988 | US4772307 Process for preparing an agricultural fertilizer from sewage |
| 09/14/1988 | EP0281940A1 Process for decomposing organic matter and/or germs in pretreated feed water for extremely pure water circuits |
| 09/13/1988 | US4770783 Method of processing waste from a nuclear power plant, said waste comprising ion-exchange resin containing radioactive metals |
| 09/13/1988 | US4770773 Waste water treatment |
| 09/06/1988 | US4769162 Conveyor lubricant comprising an anionic surfactant and a water-soluble aluminum salt |
| 09/06/1988 | CA1241775A1 Mobile fluid purification unit |
| 09/06/1988 | CA1241774A1 Effluent treatment |
| 08/31/1988 | EP0280029A2 Simultaneous removal of heavy metals and oxidizable noxious compounds from waste water |
| 08/30/1988 | US4767500 With blowing, washing and bleaching steps; alkaline sulfite, alcohol solvent, quinone redox catalyst |
| 08/30/1988 | CA1241463A1 Process and apparatus for handling waste from oil well operations |
| 08/30/1988 | CA1241200A1 Method of processing an iron-containing dust obtained in the preparation of iron or steel |
| 08/25/1988 | WO1988006144A1 A method for treating polluted material |
| 08/24/1988 | EP0279021A2 Method for removing metallic particles from a cleaning solution in cleaning machines |
| 08/23/1988 | US4765900 Oxidation, deamination of animal manures |
| 08/17/1988 | EP0278745A2 Process for the treatment of waste |
| 08/17/1988 | EP0278282A2 Method for removing heavy metals from soil |
| 08/16/1988 | US4764284 Process for removing of heavy metal from water in particular from waste water |
| 08/16/1988 | US4764272 Apparatus for recovery of hydrocarbons from hydrocarbon/water mixtures |
| 08/16/1988 | US4764271 Water treatment apparatus |
| 08/09/1988 | US4762931 Distillation, extraction |
| 07/26/1988 | US4760014 Coagulating and precipitating photopolymer resin, and separating from aqueous phase to produce sludge |
| 07/26/1988 | US4759844 Miniature, adapted to operate under conventional water main pressure on a countertop for dispensing pure water |
| 07/26/1988 | US4759474 Beverage dispensing system and filter cartridge therefor |
| 07/19/1988 | US4758353 Removal of heavy metals from waste streams |
| 07/19/1988 | US4758335 Contaminated water disposal system |
| 07/19/1988 | US4757921 Water dispensers and methods |
| 07/05/1988 | US4755303 Method of converting brines to useful products |
| 07/05/1988 | US4755296 Integrated biological-adsorption process for treating waste water |
| 07/05/1988 | US4755270 Method of processing solutions |
| 07/05/1988 | US4755268 Process and apparatus for producing silver-ionic water |
| 06/29/1988 | CN87107033A Treatment of waste and rotary kiln therefor |
| 06/28/1988 | US4753663 Reduction of water solids contributions to apparent cotton dust levels through use of special water in atomizers |
| 06/21/1988 | US4752401 Germicidal ultraviolet lamp |
| 06/21/1988 | US4752400 Entraining dissolved hydrogen cyanide by dispersing gas bubbles in solution and separating |
| 06/21/1988 | US4752389 For household use |
| 06/21/1988 | US4752363 Adding alkali metal hydroxide, filtration and electrolysis |
| 06/16/1988 | DE3641269A1 Process for treating waste waters containing photoresists |
| 06/15/1988 | EP0270879A1 Method and apparatus for disinfecting aqueous mediums, especially drinking water |
| 06/08/1988 | EP0270382A2 Method for treating photographic processing waste solution |
| 06/07/1988 | US4749497 Method and apparatus for treatment of acidic water |
| 06/07/1988 | US4749496 Filtration through open cell foam containing active powdered materials |
| 05/31/1988 | US4747958 Method and apparatus for treating bodies of water |
| 05/24/1988 | US4746438 Demineralization, degasification |
| 05/24/1988 | US4746434 Oil extraction |
| 05/19/1988 | DE3638319A1 Process for treating waste water from flue gas purification plants |
| 05/18/1988 | EP0267239A1 Methods for selectively reacting ligands immobilized within a temperature-sensitive polymer gel |
| 05/18/1988 | CN86100771B Process and equipment for the recovery and utilization of paper machine drainge |
| 05/17/1988 | US4744904 Food processing, defatting |
| 05/17/1988 | US4744903 Waste water treatment |
| 05/11/1988 | EP0266473A2 Method and apparatus for the recovery of waste water from industrial processes |
| 05/11/1988 | DE3637643A1 Method for the arsenic decontamination of aqueous solutions |
| 05/11/1988 | CN87213601U Dynamic water treatment equipment |
| 05/10/1988 | US4743379 Flotation device |
| 05/10/1988 | CA1236597A1 Method of treating peroxide-containing wastewater |
| 05/10/1988 | CA1236596A1 Method of controlling an anaerobic treatment process |
| 05/04/1988 | EP0265941A1 Process for the chemical-physical treatment of waste water |
| 04/27/1988 | EP0193565A4 Apparatus for clarification of water. |
| 04/27/1988 | CN87213385U Multifunctional potable water trenter |
| 04/19/1988 | US4738750 Coagulation, flocculation, flotation |
| 04/14/1988 | DE3633545A1 Apparatus for clarifying contact water |
| 04/13/1988 | CN87106748A Treatment of mercury contaminated lakes |
| 04/12/1988 | US4737289 Process for wastewater treatment |
| 04/07/1988 | WO1988002284A1 Treatment of waste and a rotary kiln therefor |
| 04/06/1988 | EP0263090A1 The treatment of mercury contaminated lakes |
| 04/05/1988 | US4735728 Method for pollution control in photographic processing |
| 04/05/1988 | CA1234931A1 Treatment of cyanide-ferrocyanide effluents |
| 03/31/1988 | DE3632138A1 Process for the detoxification of arsenic-containing waste water |
| 03/29/1988 | CA1234477A1 Method for treatment of impounded material (sludges) from the chemical treatment of spent sulfuric acid with lime |
| 03/24/1988 | WO1988001985A1 Sewage treatment |
| 03/24/1988 | DE3631218A1 Process for treating acidic, heavy metal-containing and/or aluminium-containing raw waters |
| 03/24/1988 | DE3630751A1 Apparatus and process for the purification of waste waters |
| 03/23/1988 | EP0260508A2 Method for lubricating and cleaning bottle transport tracks in the beverage industry |
| 03/18/1988 | EP0139002A4 Mobile fluid purification unit. |
| 03/09/1988 | EP0258546A1 Process for purifying water circuits for the production of pulp, half stuff and paper |
| 03/03/1988 | DE3629203A1 Process for disposing of photoresist solutions |
| 03/01/1988 | US4728517 Wastewater treatment, food processing |
| 03/01/1988 | CA1233430A1 Water purification apparatus |
| 02/24/1988 | EP0256734A1 Water purification system |
| 02/18/1988 | DE3626885A1 Process and reactor for disposing of refuse incineration residues |
| 02/09/1988 | US4724084 System for removing toxic organics and metals from manufacturing wastewater |
| 02/09/1988 | US4724079 Ion exchange adsorption, filtration, reverse osmosis, closed holding system |
| 02/09/1988 | US4724045 Pulp decolor process |
| 02/03/1988 | CN87105308A Management of photoresist materials containing waste solution |
| 01/27/1988 | EP0254550A1 Treatment of photoresist materials containing waste solution |
| 01/20/1988 | EP0253287A1 Combined membrane and sorption process for selective ion removal |
| 01/14/1988 | DE3620980A1 Continuous multiple-stage process for treating the bleaching waste waters from wood pulp production |
| 01/12/1988 | US4719018 Automatic water purifier |
| 01/07/1988 | EP0251691A2 Effluent treatment |
| 01/07/1988 | EP0251562A1 Detoxification process |
| 01/07/1988 | EP0251306A1 Process and apparatus for the preparation of a controllable and reproduceable temperature gradient, and its use |