| Patents for C02F 11 - Treatment of sludge; Devices therefor (21,423) |
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| 11/24/1993 | EP0570949A1 Dried sludge melting furnace |
| 11/23/1993 | US5264135 Precipitation with metal hydroxide and complexing metals with dimethyldithiocarbamate, diethylcarbamate and trithiocarbonate |
| 11/23/1993 | US5264009 Processing of sewage sludge for use as a fuel |
| 11/23/1993 | CA2086715A1 Method of dewatering sludge |
| 11/18/1993 | EP0569558A1 Evaporating plant for processing sludges. |
| 11/18/1993 | EP0569372A1 Waste handling method. |
| 11/18/1993 | EP0382756B1 Method for solids separation by wet oxidation at supercritical temperature |
| 11/18/1993 | DE4215933A1 Sludge drying |
| 11/18/1993 | DE4215580A1 Sludge water extn. - uses a conical container for sludge to pass through vertically under pressure, which is set according to water content |
| 11/16/1993 | US5262064 Dewatering method and agent |
| 11/16/1993 | US5262060 Wet oxidation of ammonium salt containing liquors |
| 11/16/1993 | US5261225 Pressurized wet combustion at increased temperature |
| 11/16/1993 | CA1324449C Method for treating polluted material |
| 11/10/1993 | EP0568903A1 Process for treatment of materials containing heavy metals |
| 11/10/1993 | EP0568736A1 Method for co-processing organic wastes and spent nitric acid wash water |
| 11/09/1993 | US5259977 Partially dewatered, mixer, alkaline material, exothermic reaction, discharge receptacle, agglomeration, pellets, moisture reduction means, recycling |
| 11/09/1993 | US5259975 Complexing metal hydroxides with tolyltriazole |
| 11/03/1993 | EP0567951A1 Process for treating and recycling waste waters from car repair shops |
| 11/03/1993 | EP0567866A1 Treating of waste water from printing plants |
| 11/02/1993 | CA1323943C Process for the treatment of waste |
| 10/30/1993 | CA2080191A1 Soybean peroxidase treatment of contaminated substances |
| 10/28/1993 | WO1993021287A1 Process for converting sludge into a fuel or a soil conditioner |
| 10/28/1993 | WO1993021118A1 Turbo oxidation system (tos) for 'wet combustion' of cod-containing liquids and for cod-reduction by enzymes |
| 10/28/1993 | CA2117751A1 Turbo oxidation system (tos) for "wet combusion" of cod-containing liquids and for cod-reduction by enzymes |
| 10/27/1993 | EP0567221A1 Wet oxidation system startup process |
| 10/26/1993 | US5256251 Process for drying and solvent-extraction of solids and sludges |
| 10/26/1993 | US5256001 Cylindrical system for in-situ treatment of underwater contaminated material |
| 10/26/1993 | CA1323501C Process for the removal of organic contaminants from solids |
| 10/23/1993 | CA2090831A1 Wet oxidation system startup process |
| 10/20/1993 | EP0566256A1 Process for treating oily sludge and organic wastes |
| 10/20/1993 | CN1077503A Chrome slag processing with aid of electrolysis in sea water |
| 10/19/1993 | US5253597 Process for separating organic contaminants from contaminated soils and sludges |
| 10/14/1993 | CA2092393A1 Process for treating oily sludge and organic wastes |
| 10/13/1993 | EP0565176A2 Process for the treatment of organic waste |
| 10/13/1993 | CN1077184A Process and installation for the utilization of organic substances |
| 10/12/1993 | US5252224 Supercritical water oxidation process of organics with inorganics |
| 10/12/1993 | US5252127 Process for the insolubilization and aggregation of smoke purification waste materials |
| 10/12/1993 | US5251383 Apparatus for and a method of disposing of wet sludge |
| 10/11/1993 | CA2093597A1 A microorganism fertilizer, a method for manufacturing the microorganism fertilizer, and a method for utilizing the microorganism fertilizer |
| 10/07/1993 | DE4311221A1 Suspension or sludge liq. sepn. - has dosed feed from holding vessel to sepn. stage with sepn. speed related to dosage delivery |
| 10/07/1993 | CA2093536A1 Process for the treatment of pre-concentrated solid-liquid mixture streams and installation to carry it out |
| 10/06/1993 | EP0564298A1 Method for treating organic sludge |
| 10/06/1993 | EP0564115A1 Method of monitoring pH in caustic liquor wet oxidation |
| 10/06/1993 | EP0564074A1 Treatment of sewage sludge |
| 10/06/1993 | EP0563482A1 Method for processing waste comprising drying by sublimation prior to incineration |
| 10/06/1993 | EP0563434A1 Digester including sludge recirculator with gas supplement |
| 10/06/1993 | EP0563097A1 Processing waste solidification. |
| 10/06/1993 | CN2143231Y High strength and thin shell methane tank |
| 10/05/1993 | US5250193 Treating stream containing organic contaminants with oxygen at elevated temperature and pressure |
| 10/05/1993 | US5250192 Sludge dewatering by freezing |
| 10/02/1993 | CA2090832A1 Method of monitoring ph in caustic liquor wet oxidation |
| 10/02/1993 | CA2086645A1 Treatment of sewage sludge |
| 10/01/1993 | CA2075349A1 Digester including sludge recirculator with gas supplement |
| 09/30/1993 | WO1993018847A1 Method and apparatus for producing feed mixture |
| 09/28/1993 | US5248423 Process for the regulation of a device for the removal of pollutants from waste water |
| 09/23/1993 | DE4209070A1 Sludge water extn. - has final electro=osmosis stage at low pressures with constant DC with pressure increases to maintain voltage as material dries |
| 09/21/1993 | US5246599 Method and arrangement for treatment of sewage sludge |
| 09/21/1993 | US5246596 Method of treating waste to make it suitable for ultimate disposal |
| 09/21/1993 | US5246580 Apparatus for separating solid particles from a liquid |
| 09/21/1993 | US5246574 Apparatus for treating and disposing of solid pollutants |
| 09/21/1993 | US5246542 Evaporation and recovery process for bleached chemical thermo-mechanical pulp (BCTMP) effluent |
| 09/16/1993 | WO1993017972A1 Method of recovering volatile acids |
| 09/15/1993 | EP0560505A2 Wet oxidation of ammonium salt containing liquors |
| 09/15/1993 | EP0560423A1 Fixing agent for fixing organic and inorganic impurities containing material, method for fixing such material and a synthetic clay material |
| 09/15/1993 | EP0395633B1 Composting plate system |
| 09/14/1993 | US5244576 Spent caustic treatment |
| 09/13/1993 | CA2062834A1 Biological process for volume reduction and solidification of sludge |
| 09/09/1993 | DE4215530A1 Sludge drying |
| 09/09/1993 | DE4206900A1 Sludge processing - using water-absorbent granular material and hydraulic bonding agent and additive to increase density to give construction material |
| 09/09/1993 | DE4206710A1 De-watering sludge using optimal procedure for different dry-matter contents - where circular filter troughs rotate past sludge inlet and outlet, and sludge is subjected to filtration and vibration and is compressed by pressure plates |
| 09/09/1993 | DE4206646A1 Industrial and communal sewage cleaning - by using a powder adsorption material mixt. with different cleaning functions to give sepd. clear water and sludge which is dried for recycling |
| 09/08/1993 | EP0559012A1 Process and installation for drying digerted sludge |
| 09/08/1993 | EP0558784A1 Process for the removal of heavy metals from swage sludge |
| 09/07/1993 | US5242603 Glycerin and/or polyoxyethylene glycol and calcium chloride |
| 09/07/1993 | US5242601 Sludge treatment with CaO or CaC2 and recovery of CaO therefrom |
| 09/02/1993 | WO1993016960A1 Apparatus for treatment of effluent |
| 09/02/1993 | WO1993016958A1 Sludge treatment or destruction of the cellular structure of microorganisms by ultra-sounds |
| 09/01/1993 | EP0557286A1 Process for recovery of oil from waste oil sludges |
| 08/31/1993 | US5240619 Water treatment |
| 08/26/1993 | DE4205739A1 Verfahren zur zerstoerung zellulaerer strukturen von suspensionen von mikroorganismen durch ultraschall, insbesondere von schlaemmen aus biologischen klaeranlagen Method for the destruction of cellular structures of suspensions of micro-organisms by ultrasound, especially sludges from biological treatment plants |
| 08/26/1993 | DE4205619A1 Solid and liquid mixt. drying - using two drying stages with an intermediate press section |
| 08/26/1993 | DE4205096A1 Solid and liq. waste recovery - comprises adding dry matter contg. top gas dust to homogenised mixt. for thermal processing |
| 08/25/1993 | EP0557078A1 Process to stabilize wastewater sludge |
| 08/24/1993 | US5238583 Treating with reagent of watern and CaO, SiO2, Al2O3 and/or Fe2O3; exothermic reaction |
| 08/24/1993 | US5237757 Process and apparatus for the continuous drying of wood shavings, wood fibres or other bulk materials |
| 08/22/1993 | WO1993016867A1 Solid-liquid separating apparatus |
| 08/18/1993 | EP0556118A1 Process for including substances of liquid to solid consistency in (meth)acrylic resins |
| 08/18/1993 | EP0410961B1 A method and an apparatus for separating solid particles from a liquid |
| 08/17/1993 | US5236602 Exposure to ultraviolet radiation |
| 08/12/1993 | DE4218672C1 Incineration of wastes contg. mercury - with addn. of chlorine source to improve fuel gas scrubbing |
| 08/11/1993 | EP0554285A1 Process for recovering raw materials from paper-industry mechanical waste sludges. |
| 08/10/1993 | US5234607 Wet oxidation system startup process |
| 08/10/1993 | US5234596 Process for composting organic waste or sewage sludge controlled by monitoring exhaust air |
| 08/10/1993 | US5234485 Method of immobilizing contaminants in the soil or in materials similar to the soil |
| 08/10/1993 | US5234469 Dewatering and heating, mixing with a fuel to produce a slurry; burning in a partial oxidation gasifier |
| 08/10/1993 | US5234468 Heating and shearing amorphous dewatered sewage sludge in absence of air, burning resulting slurry |
| 08/05/1993 | WO1993015026A1 Effluent treatment process |
| 08/05/1993 | CA2128498A1 Effluent treatment process |
| 08/04/1993 | EP0553783A1 Screw type hydrextractor |
| 08/04/1993 | EP0553438A1 Liquid filtration process |