| Patents for C02F 11 - Treatment of sludge; Devices therefor (21,423) |
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| 03/15/1994 | US5293696 Device for the dehydration of sewage sludge |
| 03/12/1994 | CA2105410A1 Sludge dehydrating press and method for treating sludge |
| 03/11/1994 | CA2105613A1 Process and an arrangement for recovering heat in the chemical degradation of sewage sludge or wastewater |
| 03/10/1994 | DE4301091C1 Utilisation of clarifier sludge for energy prodn. - by using sludge as fertiliser for growing sustainable cpds. which can be burnt to produce heat |
| 03/10/1994 | DE4229454A1 Dewatering and juice-removal press - is driven functionally only by two no-load motors with sieve-shaped tray set in vibration |
| 03/09/1994 | EP0585221A1 Anaerobic digestion process |
| 03/09/1994 | EP0524241B1 A process for the combined treatment of waste materials |
| 03/08/1994 | US5292442 Heating, autoclaving, flash evaporation, burning |
| 03/08/1994 | US5292421 Using acoustical and electrical fields |
| 03/08/1994 | CA1327431C In-situ formation of soluble silicates from biogenetic silica in chemical fixation/solidification treatment of wastes |
| 03/05/1994 | CA2105428A1 Composition and process for increasing the shear strength of processing wastes used for tip building and underground consolidation |
| 03/03/1994 | WO1994004290A1 Process for encapsulating a waste material |
| 03/03/1994 | DE4228731A1 Sewage sludge disposal - involves sedimentation in a container before passing solids to filter press |
| 03/03/1994 | CA2142841A1 Process for encapsulating a waste material |
| 03/02/1994 | EP0584119A1 Apparatus for and method of preparing a hardenable substance for storage. |
| 03/02/1994 | EP0432276B1 Method of concentrating and dehydrating slurried sludge |
| 03/01/1994 | US5290450 Anaerobic digestion process for sewage sludge |
| 03/01/1994 | US5290438 Sewage incineration system |
| 03/01/1994 | US5289640 Apparatus and method for preferentially separating volatilizable components of a matrix |
| 02/24/1994 | DE4227523A1 Method for disposal of sepd. material from water treatment plant - has material reduced to pumpable consistency with particle sizes under 10 mm and then mixed with treatment slurry before mechanical dewatering |
| 02/24/1994 | DE4227131A1 Method of conditioning sewage sludge - by addition of clay and lime to reduce ammonia emissions |
| 02/23/1994 | EP0583658A1 A method for improving bottom and water quality in water areas and a set of agents used in the method |
| 02/22/1994 | US5287985 Container for dewatering or packaging and transportation |
| 02/22/1994 | CA1327178C Process for converting sewage-sludge filter cakes into oil, gas and coke by pyrolysis and plant for carrying out this process |
| 02/22/1994 | CA1327105C Process for disposal of pulp and paper mill sludges containing chlorinated organic compounds |
| 02/17/1994 | WO1994003403A1 Treatment of sludge |
| 02/16/1994 | CN1082007A Treatment of sewage sludge |
| 02/09/1994 | EP0582174A1 Additives and process for dewatering and/or solidification of sludge |
| 02/09/1994 | EP0581965A1 Solid-liquid separating apparatus |
| 02/09/1994 | CN2155369Y Device for oxidation of dung in round manure pits |
| 02/08/1994 | US5284589 Process for the treatment of effluent |
| 02/08/1994 | US5284578 Apparatus for treating sludge |
| 02/08/1994 | US5283959 System for drying moist sludge |
| 02/08/1994 | CA2006507C Method for drying sludge |
| 02/08/1994 | CA1326937C Method and apparatus for treating waste paint sludge |
| 02/03/1994 | WO1994002424A1 Process for purifying sludge containing mainly water |
| 02/03/1994 | CA2140631A1 Process for purifying sludge containing mainly water |
| 02/02/1994 | EP0581229A1 Wet oxidation of aqueous streams |
| 01/27/1994 | DE4243156C1 Compaction of waste esp. clarification sludge - to obtain strong pressings for use in coal pressure gasification |
| 01/27/1994 | DE4226487C1 Dewatered clarification sludge feed to disposal reactor - includes temp. pressure treatment before entry into reactor then atomisation within reactor |
| 01/26/1994 | EP0579721A1 Zirconium oxide ceramics for surfaces exposed to high temperature water oxidation environments |
| 01/25/1994 | US5281341 Sludge treatment process |
| 01/25/1994 | US5280701 Waste treatment system and method utilizing pressurized fluid |
| 01/25/1994 | CA1326431C Method of coagulating sludge |
| 01/20/1994 | WO1994001370A1 Sludge dehydrating agent |
| 01/20/1994 | WO1994001369A1 A method of dewatering for sludge |
| 01/20/1994 | WO1994001368A1 Process and system for purifying waste water |
| 01/20/1994 | WO1994001208A1 Device for electroosmotically dewatering loaded materials, and related operating methods |
| 01/20/1994 | WO1994001190A1 Recovery of metal values from process residues |
| 01/20/1994 | DE4223022A1 Sludge water extraction assembly - comprising a double membrane system in the sludge chamber with almost continuous sludge feed and extraction of filtered material |
| 01/20/1994 | DE4216968A1 Dewatering of products, esp. sludges, fruit pulp etc. - by passing product on belt pressing drum with pressing element having flexible surface and moving with drum through ninety degrees and returning to initial position |
| 01/20/1994 | CA2139642A1 Recovery of metal values from process residues |
| 01/20/1994 | CA2139412A1 Process and system for purifying waste water |
| 01/19/1994 | EP0290488B1 Treatment of waste and a rotary kiln therefor |
| 01/18/1994 | US5280149 Process for treating highly environmentally polluting residues |
| 01/18/1994 | US5279718 Method of electroosmotically dehydrating sludge |
| 01/18/1994 | US5279637 Sludge treatment system |
| 01/12/1994 | EP0578182A2 Electro-endosmosis type dehydrator |
| 01/12/1994 | EP0577730A1 Synthetic cover for waste piles |
| 01/12/1994 | CN1023454C Dehydration press |
| 01/11/1994 | US5277826 Lime and fly ash stabilization of wastewater treatment sludge |
| 01/11/1994 | US5277825 Materials handling |
| 01/11/1994 | US5277814 Process for treating organic wastes |
| 01/11/1994 | CA1326079C Process for conditioning and dewatering sludges |
| 01/07/1994 | CA2099651A1 Apparatus for and a method of disposing of wet sludge |
| 01/06/1994 | WO1994000404A1 Organic substance liquefying apparatus |
| 01/06/1994 | WO1994000393A1 Materials handling and separation method for wastewater |
| 01/05/1994 | DE4307046A1 Car wash water cleaner - has container and sepn. systems to recirculate water without sludge basins and purificn. plant |
| 01/05/1994 | CN1023393C Method of treating wastewater sludge |
| 01/04/1994 | US5275733 Odor reduction with highly adsorbent material; adjusting pH, conductivity and solids content; adding microflora to catabolize organics |
| 01/04/1994 | US5275508 Synthetic cover for waste |
| 01/04/1994 | CA2026849C Method and means for treating sludge |
| 12/29/1993 | EP0575329A1 Combined filtration and fixation of heavy metals |
| 12/28/1993 | US5273663 Oxidative removal of aqueous cyanide under acidic conditions |
| 12/28/1993 | US5273661 Method for processing aqueous wastes |
| 12/28/1993 | US5273556 Process for disposing of sewage sludge |
| 12/23/1993 | WO1993025329A1 Treatment of waste materials for disposal |
| 12/23/1993 | DE4220143A1 Electrically-heated dryer and cooler for granular materials and sludges - has heated rotors attached to rotating shaft in contact with material being dried and are divided into zones each operated at a different temperature |
| 12/22/1993 | EP0575180A1 Decontamination process |
| 12/22/1993 | EP0574972A1 Method and apparatus for treating a water-based paint coagulate or filtrate |
| 12/21/1993 | US5271162 Process for the emission-free drying of a substance in a drying drum |
| 12/16/1993 | DE4231793C1 Bulk waste-disposal system - heats clear slurry after drying to form powder and mixes with free-flowing plastics for extrusion or moulding |
| 12/16/1993 | DE4219584A1 Sludge processing - uses partial water recirculation to reduce consumption where water supplies are restricted |
| 12/16/1993 | DE4219297A1 Sludge processing belt - has build=up unit to mix sludge to release contained water for easier extn. |
| 12/16/1993 | DE4218863A1 Treating granular material or waste water loaded with heavy metals - by binding metals with chelating agent and passage through ion exchange system |
| 12/16/1993 | DE4213119C1 Construction material derived from sludge - is mixed with ferrous-manganese sludge and ashes contg. residue from potash and salt mining as mine support piles |
| 12/15/1993 | EP0573478A1 Process for separate treatment and disposal of mixtures of solid and liquid organic waste materials. |
| 12/15/1993 | EP0402405B1 Gasification process |
| 12/15/1993 | CN1023073C Method of coagulating sludge |
| 12/14/1993 | US5269906 Process for the recovery of oil from waste oil sludges |
| 12/14/1993 | CA1325294C Sludge treatment process |
| 12/11/1993 | CA2098134A1 Treatment of sewage sludge |
| 12/09/1993 | DE4218566A1 Biodegradable component for use in landfills etc. - comprises clarified sludge with binder e.g. polymeric material pref. gypsum |
| 12/08/1993 | EP0572813A1 Process for the disposal of flue gas residues |
| 12/07/1993 | CA1324943C Granular paper foam mixing material |
| 12/06/1993 | CA2097146A1 Process for the disposal of flue gas residues |
| 12/02/1993 | DE4217987A1 Removal and recovery of heavy metals from earth, sludges and waterways - by amalgamation and sedimentation of esp. mercury@, nickel@ and cobalt@ and their cpds., by addn. of powered zinc@ or aluminium@ |
| 12/01/1993 | EP0571680A1 Method of dewatering sludge |
| 11/30/1993 | US5266085 Process for disposing of sewage sludge |
| 11/30/1993 | US5265979 High efficiency waste placement system for municipal landfills |