| Patents for C02F 11 - Treatment of sludge; Devices therefor (21,423) |
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| 08/21/1997 | DE19604662C1 Horizontally operating dewatering press for liquid sludge from waste-water treatment |
| 08/21/1997 | CA2245544A1 A method and apparatus for treating liquid-containing material based on organic waste products |
| 08/20/1997 | EP0789752A1 Method for obtaining microorganisms which degrade organic compound(s) |
| 08/20/1997 | CN2260084Y Sludge scraping and collecting machine in sediment tank with ratchet clutch |
| 08/20/1997 | CN1157265A Method and device for treating dross and greasy dirt |
| 08/19/1997 | CA2025705C Pyrolysis process and apparatus |
| 08/14/1997 | WO1997029050A1 Injector for scwo reactor |
| 08/14/1997 | WO1997022842A3 Process and device for drying organic waste |
| 08/14/1997 | DE19605146A1 Sludge drum drier vapours sub-divided and returned to drum without condensation or dust removal; |
| 08/13/1997 | EP0788465A1 Method and apparatus for the oxidation processing of effluents in the presence of a heterogeneous catalyst |
| 08/13/1997 | EP0788394A1 Process for the treatment of contaminated material |
| 08/12/1997 | US5656674 Incorporating pollutant-containing fractions of waste materials of different particle sizes in plastic material which prevents leaching when exposed to environment |
| 08/12/1997 | CA2081214C Hazardous waste disposal method and composition |
| 08/07/1997 | WO1997028101A1 Method for treating aqueous liquid effluents containing organic and inorganic materials to enable recycling thereof |
| 08/07/1997 | CA2254711A1 Method for treating aqueous liquid effluents containing organic and inorganic materials to enable recycling thereof |
| 08/06/1997 | EP0787690A2 Wet oxidizing process of waste soda |
| 08/06/1997 | EP0750590A4 Waste treatment plant and process |
| 08/06/1997 | EP0738238B1 Process for the wet-oxidising treatment of organic pollutants in waste water |
| 08/06/1997 | CN1155973A Treating method for pollutant in apparatus of animal products |
| 08/05/1997 | US5653872 Apparatus for removing water from aqueous sludge waste compositions |
| 07/31/1997 | WO1997027147A1 Process for drying sewage sludge or sludges of similar consistency |
| 07/31/1997 | WO1997026972A1 Process for recovering components of a float material from waste water treatment system |
| 07/31/1997 | DE19605007A1 Universal treatment process for sludge comprising organic and inorganic materials |
| 07/30/1997 | EP0513186B1 Process for oxidation of materials in water at supercritical temperatures |
| 07/30/1997 | CN1155519A Process for treating arsenic-containing waste water |
| 07/29/1997 | US5651897 Wet oxidation of high strength liquors with high solids content |
| 07/24/1997 | DE19641247A1 Use of humic acid and its salts as catalyst or sorbent |
| 07/24/1997 | DE19602290A1 Verfahren zur Trocknung von Klärschlamm oder Schlämmen ähnlicher Konsistenz Process for drying sewage sludge or sludges of similar consistency |
| 07/24/1997 | DE19602204A1 Increasing effectiveness of sludge flocculation process at low cost |
| 07/23/1997 | EP0784600A2 Method for oxidation of organic waste liquors |
| 07/23/1997 | EP0784501A2 Dewatering process |
| 07/23/1997 | CN1154949A Method for treating waste water |
| 07/22/1997 | US5649894 Compositions and methods for waste treatment |
| 07/17/1997 | WO1997025281A1 Method for improving the processability of natural or artificial sludge |
| 07/17/1997 | DE19600412A1 Verfahren zur Verbesserung der Verarbeitungseigenschaften von natürlichen oder künstlichen Schlammen A method of improving the processing properties of natural or artificial muds |
| 07/16/1997 | EP0783462A1 Process and apparatus for treatment of sewage sludge |
| 07/15/1997 | US5648258 Controlling methane production for better feed efficiency in cattle |
| 07/15/1997 | US5647980 Coarse and fine filters; backwashing; disinfectant chamber; settling and pump chambers |
| 07/10/1997 | DE19548494C1 Sludge drying process and assembly keeps mixture below 65 per cent dry matter |
| 07/08/1997 | US5645614 Shaping into fuel briquettes, auxiliary fuel for power station boiler, pyrolysis or gasification to fuel gas or synthesis gas |
| 07/03/1997 | WO1997023418A1 Improvements in or relating to treatment of sludge waste |
| 07/03/1997 | WO1997023345A1 Screw press head |
| 07/01/1997 | US5643461 Release agents for water using cationic water soluble cationic polymers, mixing with branching agent then dewatering |
| 07/01/1997 | US5643458 Sludge dehydrating press and method for treating sludge |
| 07/01/1997 | US5642613 Supplying coal, water, oxygen at optimum pressure and temperature to wet oxidation reactor, maintaining liquid level at optimum, controlling supply of oxygen for incomplete combustion, cooling products, storing, distributing |
| 06/26/1997 | WO1997022842A2 Process and device for drying organic waste |
| 06/24/1997 | US5641412 Natural gas and air is supplied to the burner to produce a flame containing hydroxy free radicals and oxygen, and oxidizing the organic substance |
| 06/24/1997 | US5641127 Apparatus for liquidizing organic substances |
| 06/19/1997 | DE19547062A1 Verfahren und Vorrichtung zur Trocknung von organischen Abfällen Method and apparatus for drying organic waste |
| 06/19/1997 | DE19545633C1 Capillary method for dewatering sludge and separating liquids |
| 06/18/1997 | EP0778813A1 Method for dewatering sludges |
| 06/18/1997 | EP0639163B1 Turbo oxidation system (tos) for "wet combustion" of cod-containing liquids and for cod-reduction by enzymes |
| 06/17/1997 | US5640704 Process for solidification and immobilization of harmful waste species |
| 06/10/1997 | US5637192 Endothermic spent liquor recovery process |
| 06/10/1997 | US5636451 Process for feeding sludge into a reactor for thermal disposal |
| 06/03/1997 | US5635069 Mixing sludge with sulfamic acid and oxide-containing chemical, pressurizing and discharging |
| 05/28/1997 | EP0775094A1 A method of stabilizing slurries |
| 05/28/1997 | DE19617218A1 Dewatered sewage sludge treatment, recovering reducing problem of sludge disposal |
| 05/28/1997 | DE19532802C1 Use of industrial grinding sludges contaminated with thick inseparable oil by microbial decomposition |
| 05/21/1997 | EP0774134A1 Pressure reduction system and method |
| 05/20/1997 | US5630936 Vertical drainage drying bed for waste sludge and an intensified method of treating wastewater |
| 05/20/1997 | US5630915 Liquid decontamination system using electrical discharge with gas injection |
| 05/15/1997 | DE19542301A1 Sludge contra-flow drying process and assembly without self-mixing of drying sludge or vapours |
| 05/13/1997 | US5628812 Method and installation for ventilating and controlling a biological dehydration and stabilization treatment of a moist fermentable organic product |
| 05/09/1997 | WO1997016248A1 Heavy metal removal agent containing a sulphur compound |
| 05/06/1997 | US5626664 Metal agglomerates with fly ash, coke or blast furnace flue gas dust |
| 05/02/1997 | EP0770581A1 Dewatering of sludges |
| 05/02/1997 | EP0770041A1 Turbulent flow cold-wall reactor |
| 05/02/1997 | EP0770040A1 Wet oxidation system |
| 04/30/1997 | CN2253346Y Integral gas-solid-liquid separator module for upspout anaerobic mud bed |
| 04/29/1997 | US5624564 Process for dehydration and concentration of sewage sludge |
| 04/29/1997 | US5624550 Means for generating sludge from ground improvement site, diluting container, means for diluting, means for adding flocculating agent, dehydration means |
| 04/17/1997 | WO1997013728A1 Method and apparatus for dewatering frozen marine sediments |
| 04/17/1997 | WO1997013725A1 Sewage process method |
| 04/15/1997 | US5620606 Prevent plugging of reactor |
| 04/15/1997 | CA2114894C Odor control composition and method of using same |
| 04/10/1997 | WO1997012948A1 Process and composition for soil remediation |
| 04/10/1997 | CA2233058A1 Process and composition for soil remediation |
| 04/08/1997 | US5618442 Mixing with alkaline additive, pasteurizing |
| 04/03/1997 | WO1997011767A1 Electro-osmotic dewatering of sludges |
| 04/03/1997 | DE19538579C1 Device produces bio-gas from organic materials |
| 04/03/1997 | DE19535928A1 Treating liq. or sludge contg. organic components |
| 04/02/1997 | EP0698005B1 Device and method for the composting and wet-fermentation of biological waste |
| 03/27/1997 | DE19638414A1 Treating waste water |
| 03/26/1997 | EP0764613A2 Process and plant for purification of municipal and domestic waste water |
| 03/26/1997 | EP0764140A1 Dewatering of suspensions |
| 03/26/1997 | EP0696259A4 Process and apparatus for the treatment of waste water |
| 03/26/1997 | EP0646051A4 Treatment of waste materials for disposal. |
| 03/26/1997 | EP0544883B1 Process for drying and solvent-extraction of solids and sludges |
| 03/26/1997 | CN1146169A Process for treatment of contaminated land |
| 03/26/1997 | CN1146163A Process for treatment of contaminated material |
| 03/26/1997 | CN1146162A Process for treatment of contaminated material |
| 03/25/1997 | US5614107 Method of freeze drying sewage sludge |
| 03/25/1997 | US5614087 Wet oxidation system |
| 03/25/1997 | CA1339018C Indirectly heated thermochemical reactor apparatus and processes |
| 03/20/1997 | WO1997010181A1 Selective separation at supercritical water conditions |
| 03/20/1997 | CA2231737A1 Selective separation at supercritical water conditions |
| 03/19/1997 | EP0739311A4 Liquid decontamination system using electrical discharge with gas injection |
| 03/19/1997 | EP0674604B1 Sludge treatment process and plant |
| 03/19/1997 | CN1145335A Water feeding and discharging system |