| Patents for C02F 11 - Treatment of sludge; Devices therefor (21,423) |
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| 11/25/1992 | EP0407404B1 A method for the break-down and recycling of solid urban waste by anaerobic fermentation |
| 11/23/1992 | CA2043015A1 Method for treating sludges |
| 11/19/1992 | EP0513706A1 Apparatus for treating aqueous pastry substrances |
| 11/19/1992 | EP0513454A1 Caustic sulfide wet oxidation process |
| 11/19/1992 | EP0513186A1 Process for oxidation of materials in water at supercritical temperatures. |
| 11/14/1992 | CA2051756A1 Garbage dump |
| 11/12/1992 | DE4114667A1 Animal waste processing - by collecting methane gas from manure container as fuel and manure is spun and drying while steam is condensed and returned to water supply |
| 11/11/1992 | EP0512481A1 Process and apparatus for drying materials |
| 11/11/1992 | EP0512287A1 Electro-endosmosis type dehydrator |
| 11/10/1992 | US5161915 Liquid, binder, cellulose and plastic fibers to prevent erosion; thick viscid slurry capable of being sprayed; forming cover by mixing ingredients; waste pile covering process |
| 11/05/1992 | DE4114386A1 Waste water cleaning |
| 11/03/1992 | US5160636 Solvent extraction and detoxification of solid wastes |
| 11/03/1992 | US5160628 Method of making a filler from automotive paint sludge, filler, and sealant containing a filler |
| 11/03/1992 | US5160612 Lifting support frame for a filter press |
| 11/03/1992 | US5160440 Flocculation, filtration |
| 10/29/1992 | WO1992018437A1 Harzardous waste containment system |
| 10/29/1992 | WO1992018429A1 System for separating biological sludge from purified water |
| 10/29/1992 | WO1992018428A1 Zirconium oxide ceramics for surfaces exposed to high temperature water oxidation environments |
| 10/28/1992 | CN1065644A Apparatus for purifying sewage |
| 10/28/1992 | CN1065643A Method for purifying sewage |
| 10/27/1992 | US5158689 Heat exchanging, oxidation |
| 10/27/1992 | CA1309360C Dewatering slurries |
| 10/22/1992 | DE4112733A1 Purifying waste water from carbonisation of hydrocarbon contg. solid - by wet oxidn. to produce gas, burnt as fuel, and pure water used for heat recovery |
| 10/21/1992 | EP0509468A2 Container for dewatering or packaging and transportation |
| 10/21/1992 | EP0509315A1 Process and apparatus for treatment and disposal of solid pollutants |
| 10/20/1992 | CA1308879C Method and apparatus for solids separation in a wet oxidation type process |
| 10/18/1992 | CA2066286A1 Container for dewatering or packaging and transportation |
| 10/15/1992 | DE4111917A1 Fuel gas prodn. from wastes contaminated with heavy metals - by partial oxidn. in presence of sulphur@ to convert volatilised metals to solid sulphide |
| 10/15/1992 | DE4111849A1 Dewatering of biomasses contg. bacteria - by drying with superheated steam, esp. for sewage sludge giving storage stable free-flowing prod. for e.g. fuel |
| 10/14/1992 | EP0508382A1 Process for the biological drying of sewage sludge |
| 10/14/1992 | CN1018630B Technology for mesophilic digestion and high-temp. process of city excrement |
| 10/13/1992 | US5154830 Process of removing phosphorus and suspended matter from waste water |
| 10/11/1992 | WO1992018214A2 System and method for removing a volatile component from a matrix |
| 10/11/1992 | CA2102218A1 System and method for removing a volatile component from a matrix |
| 10/07/1992 | CN1065054A Apparatus for treating activated sludge |
| 09/27/1992 | CA2060814A1 Method and apparatus for removing votatile compounds from soils |
| 09/26/1992 | WO1992016317A1 Synthetic cover for waste piles |
| 09/24/1992 | DE4108896A1 Circular vessel for sepg. light and/or heavy impurities from water - with scrapers which remove impurities from conical floor and roof which are loosely mounted and pressed against floor or roof by springs or by gravity |
| 09/23/1992 | CN2116693U Steel cable type separator for excrement and urine |
| 09/23/1992 | CN2116692U Radial flow type separator for excrement and urine |
| 09/23/1992 | CN1064627A Combined filtration and fixation of heavy metals |
| 09/22/1992 | CA2046727A1 Method of capping tailings ponds |
| 09/21/1992 | CA2038678A1 Aerobic biological process for treating waste sludges |
| 09/17/1992 | WO1992015540A1 Process for separate treatment and disposal of mixtures of solid and liquid organic waste materials |
| 09/17/1992 | WO1992015388A1 Combined filtration and fixation of heavy metals |
| 09/17/1992 | CA2104791A1 Process for separate treatment and disposal of mixtures of solid and liquid organic waste materials |
| 09/15/1992 | US5147564 Generating electricity |
| 09/15/1992 | US5147554 Process for treating wastes from the machining of ferromagnetic materials |
| 09/15/1992 | CA1307596C Process for effecting chemical reactions |
| 09/13/1992 | CA2062703A1 Stabilization of pre-existing landfills |
| 09/10/1992 | DE4107200A1 Thermal redn. of industrial waste - by removing organic and inorganic material using low temp. distn. reactor, and treating waste material of low heat value |
| 09/09/1992 | EP0502232A1 Process for disposal of organic sludge, especially of paint sludge, originating from a coating installation |
| 09/08/1992 | US5145587 Method for treatment of waste water |
| 09/08/1992 | US5145582 Method for stabilizing sludge |
| 09/08/1992 | CA1307361C Method for purifying waste water |
| 09/03/1992 | WO1992014682A1 Bacterial leaching process |
| 09/03/1992 | WO1992014562A1 Methods for neutralizing dyestuff-sludges and waste products |
| 09/02/1992 | WO1992015539A1 Method for producing homogeneous, fine, pulverulent solids dispersions optionally containing active substances |
| 09/02/1992 | EP0500657A1 A method of removing heavy metals form soil, sludge, compost and similar materials |
| 09/02/1992 | CN2114501U Waste water and slurry treating device with high pressure and high vacuum |
| 09/02/1992 | CN1064066A Method to treat sludge in dichloroethane stock tank |
| 09/02/1992 | CA2081307A1 Method for producing homogeneous, fine, pulverulent solids dispersions optionally containing active substances |
| 09/01/1992 | US5143628 Method of the dewatering of sludge |
| 09/01/1992 | US5143618 Process for the treatment of organic wastewater |
| 09/01/1992 | US5143481 Method of treating municipal sewage sludge and product produced thereby |
| 09/01/1992 | CA1306847C Asymmetric heat exchange reaction apparatus and method for effecting chemical reactions |
| 08/29/1992 | WO1992015536A1 Hazardous waste disposal method and composition |
| 08/27/1992 | DE4103463A1 Burning dried sewage sludge to give liq. ash - using air enriched with oxygen for combustion |
| 08/26/1992 | EP0500199A2 Process for treating contaminated sediments from water |
| 08/26/1992 | EP0499779A1 Method for treatment of waste materials |
| 08/26/1992 | CN1063850A Methane gas producing apparatus |
| 08/25/1992 | USRE34041 Mixing with clay; solidification |
| 08/20/1992 | DE4105502A1 Device for disposal of sludges, especially those contg. gypsum or clay - comprises tank with bottom outlet contg. baskets one above another and lined with filter paper in which water overflows from each basket to next |
| 08/20/1992 | DE4104623A1 Pretreatment of material contg. solids for biological decontamination - by forming pumpable compsn., opt. with addn. of water, homogenisation, and addn. of water absorbent substance, to form friable mixt. |
| 08/20/1992 | DE4104252A1 Blast furnace which disposes of carbon rich environmental waste prods. - uses liquefied or powered waste prods. in prodn. of pig iron@ without release of dioxin(s) |
| 08/19/1992 | EP0499502A1 Process for controlling an apparatus for waste water purification |
| 08/19/1992 | CN1063667A Anaerobic dry yeast processing method by city rubbish box method |
| 08/12/1992 | CA2060960A1 Process for the control of a waste water treatment device |
| 08/06/1992 | WO1992012944A1 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 |
| 08/06/1992 | WO1992012938A1 Waste handling method |
| 08/06/1992 | CA2100087A1 Waste handling method |
| 08/05/1992 | EP0496916A1 Method for treating deposits |
| 08/05/1992 | EP0496915A1 Method for treating deposits |
| 08/04/1992 | US5135664 Method for treating wastewater sludge |
| 08/04/1992 | US5135655 Process for treating refinery slurries |
| 07/29/1992 | EP0496290A2 Process and power plant for utilising sewage sludge |
| 07/29/1992 | EP0496271A1 Process and device for composting organic wastes or sewage sludge |
| 07/29/1992 | EP0496101A1 Process for the thermal treatment of ammonium sulfate containing wastes especially ammonium sulfate containing waste-waters |
| 07/28/1992 | US5133877 Conversion of hazardous materials using supercritical water oxidation |
| 07/23/1992 | DE4101173A1 Sepg. floating and sinking impurities from waste water |
| 07/23/1992 | DE4101172A1 Gravitational separator for floating impurities such as fats and oils - has pipe leads from conical upper section of closed separator to exchangeable collection vessel, and adaptor or pipe has same dimensions as standard vessel cover |
| 07/22/1992 | CN1017522B Process for treating waste water by wet oxidations |
| 07/21/1992 | USRE33998 Apparatus and process for producing an organic product from sewage sludge |
| 07/21/1992 | CA1305568C Equipment for the anaerobic purification of waste water |
| 07/15/1992 | EP0333796B1 Process and device for processing hydroxide sludges |
| 07/14/1992 | US5130051 Precipitation of toxic metals with silicate and a fixatives |
| 07/08/1992 | EP0463062A4 Bioslurry reactor for treatment of slurries containing minerals, soils and sludges |
| 07/08/1992 | CN1017332B Rural methane generating pit |
| 07/07/1992 | US5127765 System for in-situ treatment of underwater contaminated material |
| 07/01/1992 | EP0492675A1 Process for the consolidation of waste sludge or similar |