| Patents for C02F 1 - Treatment of water, waste water, or sewage (145,124) |
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| 10/06/1988 | WO1988007400A1 System for centrifugation and for classification of particulate materials |
| 10/06/1988 | DE3710250A1 Apparatus for sterilising water by UV radiation |
| 10/06/1988 | DE3709950A1 Process for treating sulphate-containing waste water |
| 10/06/1988 | DE3709570A1 Process for eliminating traces of elemental mercury from water |
| 10/05/1988 | EP0285525A1 Diorganic polysiloxane gum composition containing iodide for treating waters |
| 10/05/1988 | EP0285321A2 Carbonaceous adsorbent for removal of pyrogen and method of producing pure water using same |
| 10/05/1988 | EP0285318A1 Inhibiting corrosion in aqueous heat transfer apparatus |
| 10/05/1988 | EP0285209A2 Sustained release microbiological control composition and method for biological control using said composition |
| 10/05/1988 | EP0284944A1 Process for changing the capacity of an ion exchanger for a particular chemical element |
| 10/05/1988 | EP0284754A1 A process for treating polluted soils |
| 10/05/1988 | EP0188507B1 A method for neutralizing waste sulfuric acid by adding a silicate |
| 10/05/1988 | CN87214822U Drinker |
| 10/05/1988 | CN87101713B Process for recovering nickel tetracarbonyl from waste renik nickel catalyst |
| 10/04/1988 | US4775744 Cationic and anionic lignin amines |
| 10/04/1988 | US4775650 Chitin dispersed thin films on porous solid substrates; polychlorinated biphenyls and metals removal |
| 10/04/1988 | US4775513 Water treatment and soil testing |
| 10/04/1988 | US4775495 Adding alkaline earth metal hydroxide to form insoluble sulfate, adding silicic acid, solidifying |
| 10/04/1988 | US4775485 Feeding chemical in perforated sphere; swimming pools |
| 10/04/1988 | US4775475 Adsorption, removal of hydrocarbons, regeneration of adsorbant |
| 10/04/1988 | US4775468 Intense agitation with dilute activated polymer yields firm non-sticky filter-cake; high speed, transportable |
| 10/04/1988 | US4775467 Reactor piping with pump column |
| 10/04/1988 | US4775465 Elongated with valve seats at each end |
| 10/04/1988 | CA1242621A1 Bleach cake in an improved bleach resistant particle retaining means |
| 09/29/1988 | DE3805200C1 Arrangement for expelling readily volatile impurities from groundwater |
| 09/29/1988 | DE3709174A1 Process and apparatus for the biological purification of organically polluted waste waters |
| 09/29/1988 | DE3708947A1 Process for disinfecting raw waters for postmix systems and an electrochemical reactor having a self-cleaning cathode for carrying out the process |
| 09/29/1988 | DE3707446A1 Process for removing ammonia from a waste water of a flue-gas purification process |
| 09/28/1988 | EP0284602A1 Process and apparatus for ecologically beneficial and hygienic sludge treatment and disposal |
| 09/28/1988 | EP0284440A2 Water supply system |
| 09/28/1988 | EP0284341A2 Method for treating photographic process waste liquor throough concentration by evaporation |
| 09/28/1988 | EP0284052A2 Process for producing ultra-pure water and process for using said ultra-pure water |
| 09/28/1988 | EP0283978A1 Use of ionexchanging mixtures of mineral materials for water treatment |
| 09/28/1988 | EP0283751A2 Polyalkylamine complexes for ligand extraction and generation |
| 09/28/1988 | EP0283700A2 Process and apparatus for the treatment of compounds and/or micro-organisms with electrical impulses |
| 09/28/1988 | EP0283600A1 Landfill disposal of material containing vanadium |
| 09/28/1988 | EP0283528A1 An ice maker heat pump using water supercooling |
| 09/28/1988 | EP0283509A1 The control of biofouling in aqueous systems by non-polymeric quaternary ammonium polyhalides. |
| 09/28/1988 | CN88101281A Process for the hydrolysis of urea in dilute aqueous urea solution |
| 09/28/1988 | CN87105996A Method for cleaning sewage containing phosphoratic and for biological removal of phosphorus, apparatus thereof |
| 09/27/1988 | US4774026 Semiconductor photocatalyst, electromagnetic waves |
| 09/27/1988 | US4774005 Neutralization, filtration |
| 09/27/1988 | US4773993 Reverse osmosis, polisher, u v sterilizer; pharmaceuticals, semiconductors |
| 09/27/1988 | US4773991 Water purification system fluid path |
| 09/27/1988 | US4773979 Equipment for purifying gases and liquids |
| 09/22/1988 | WO1988007026A1 Process for treating microdispersed emulsions and liquids containing organic impurities |
| 09/22/1988 | WO1988007025A1 Improvements in and relating to water conditioning |
| 09/22/1988 | WO1988006914A1 Apparatus for concentrating waste liquid, apparatus for processing waste liquid and method of concentrating waste liquid |
| 09/22/1988 | DE3707989A1 Waste water treatment plant |
| 09/21/1988 | EP0283444A2 A method and an apparatus for cold sterilization of surgical instruments, in particular dental surgery instruments. |
| 09/21/1988 | EP0283408A2 Elastomeric siloxane polycondensation composition containing iodide |
| 09/21/1988 | EP0283407A2 Heat-vulcanizable elastomeric silicon composition containing iodide |
| 09/21/1988 | EP0283243A2 Control of corrosion in aqueous systems |
| 09/21/1988 | EP0283153A1 Method of treating wastewater sludge |
| 09/21/1988 | EP0282869A1 Process and installation for separating ammonia ions as well as chlorinated hydrocarbons and/or hydrocarbons from waste water |
| 09/21/1988 | EP0282737A2 Organopolysiloxanes containing acyl-thio-ureum groups, their preparation and their use |
| 09/21/1988 | EP0282483A1 Electronic control system for desalinators |
| 09/21/1988 | EP0282476A1 Process and device for treating an aqueous liquid. |
| 09/21/1988 | CN88200643U Water purifier |
| 09/21/1988 | CN88200203U Household combined mineral water generator |
| 09/21/1988 | CN87101246A Method and flocculant for water treatment |
| 09/21/1988 | CN87101217A Comprehensive processing method for high-concentration cyanogen waste water and so2-containing exhaust flue gas |
| 09/20/1988 | US4772400 Method and facility for removing sludge from water |
| 09/20/1988 | US4772398 Method for treatment of waste water and its apparatus |
| 09/20/1988 | US4772390 Filter membrane of hollow microporous olefin fibers removes traces of low molecular weight organics |
| 09/20/1988 | US4772387 Fluid circulates in space between two concentric tubes through permanent magnetic field |
| 09/20/1988 | US4772386 Filter with liquid meter |
| 09/20/1988 | US4772369 Demineralization |
| 09/20/1988 | US4772333 Culture product of rhodococcus bacteria |
| 09/20/1988 | US4772307 Process for preparing an agricultural fertilizer from sewage |
| 09/20/1988 | CA1242288A1 Method of reducing the nickel content in waste water |
| 09/15/1988 | DE3707219A1 Apparatus for separating sub-quantities of liquids from a specific inflow region from which disposal takes place into a lower-level collecting tank, preferably for vehicle-washing systems |
| 09/15/1988 | DE3707021A1 Process and apparatus for denitrifying drinking water |
| 09/15/1988 | DE3706864A1 Device, plant and method for removing pollutants from flue gases |
| 09/14/1988 | EP0282211A2 Bacterial inhibiting compositions and use thereof |
| 09/14/1988 | EP0282203A1 Microbiological control agent |
| 09/14/1988 | EP0281940A1 Process for decomposing organic matter and/or germs in pretreated feed water for extremely pure water circuits |
| 09/14/1988 | EP0066611B1 Selective rheological separation of clays |
| 09/13/1988 | US4770859 Dishwasher detergents |
| 09/13/1988 | US4770790 Using nonionic surfactant and biodispersant |
| 09/13/1988 | US4770788 Ion exchanging |
| 09/13/1988 | US4770773 Waste water treatment |
| 09/13/1988 | US4770770 Demineralization |
| 09/13/1988 | US4770768 Water filter apparatus and aerator assembly |
| 09/13/1988 | US4770766 Time-controlled processes for agglomerating coal |
| 09/13/1988 | US4770755 Electrode unit to be used for purification of emulsions and polluted waters, especially oil-bearing waters, by means of electrolysis |
| 09/13/1988 | US4770748 Vacuum distillation system |
| 09/13/1988 | US4770198 Method and apparatus for mixing liquids |
| 09/13/1988 | US4770005 Plant having a heat accepting and releasing process portion and a heat supply portion including an absorber arrangement |
| 09/13/1988 | CA1241913A1 Method of maintaining adequate seed crystal in preferential precipitation systems |
| 09/08/1988 | DE3706405A1 Verfahren zur abwasserreinigung Process for wastewater treatment |
| 09/08/1988 | DE3706267A1 Device for the withdrawal of float material |
| 09/07/1988 | WO1988006641A1 Polyalkylamine complexes for ligand extraction and generation |
| 09/07/1988 | WO1988006570A1 Biological dephosphatization and (de)nitrification |
| 09/07/1988 | EP0280926A1 Method for purifying industrial-waste waters by electrochemical oxidation |
| 09/07/1988 | EP0280838A1 Electronic ionical scale inhibitor |
| 09/07/1988 | EP0280760A2 Apparatus for treating materials, in particular fuels, with a magnetic field |
| 09/07/1988 | EP0280750A1 Method and apparatus for treating H2S containing gases |
| 09/07/1988 | EP0273045A4 Novel compositions and method for control and clean-up of hazardous acidic spills. |
| 09/07/1988 | CN88100799A Column construction or boiling space in a distilling apparatus |
| 09/06/1988 | US4769155 Turbidity reduction |