| Patents for C02F 11 - Treatment of sludge; Devices therefor (21,423) |
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| 12/21/1988 | EP0295323A1 Process and apparatus for thermal treatment |
| 12/20/1988 | US4792406 Mixing with cationic amine salt |
| 12/07/1988 | EP0293982A1 Process for the treatment of contaminated mineral materials |
| 12/07/1988 | CN88101683A Method of treating wastewater sludge |
| 12/06/1988 | US4789523 Cationic and anionic lignin amines corrosion inhibitors |
| 12/01/1988 | WO1988009316A1 Preparation of free-flowing solids from aqueous waste |
| 11/29/1988 | US4787978 Method for the purification of waste water, notably of urban waste water |
| 11/29/1988 | US4787960 For wood pulp |
| 11/29/1988 | US4787323 Treating sludges and soil materials contaminated with hydrocarbons |
| 11/23/1988 | EP0291746A1 Process for removing metals from soils, dusts and sludges |
| 11/23/1988 | EP0291665A2 Process for improving the dehydration of biological sewage sludge |
| 11/22/1988 | US4786407 Plant for treatment of sediment of natural and waste waters |
| 11/17/1988 | WO1988008827A1 Device and process for disposal, and in particular hygienic treatment, of the sludge formed in a clarification plant |
| 11/17/1988 | WO1988008826A1 Methane fermentation process for organic materials and device for implementing such process |
| 11/17/1988 | WO1988008752A1 Method for the hydromechanical treatment of organic waste for the preparation of fermentable sludge and device for its implementation |
| 11/17/1988 | EP0291425A1 Method and device for the hydromechanical treatment of organic wastes for preparing fermentable sludges |
| 11/17/1988 | EP0290659A1 Rigidification of semi-solid agglomerations |
| 11/17/1988 | EP0290605A1 Method of biological purification of waste water from non-ionogenic surface-active substances |
| 11/17/1988 | EP0290488A1 Treatment of waste and a rotary kiln therefor. |
| 11/15/1988 | US4784770 Method for producing methane gas |
| 11/10/1988 | DE3714016A1 Process for the treatment of scrubbing water from a gas scrubber |
| 11/09/1988 | EP0290361A1 Process and apparatus for the methane fermentation of organic substances |
| 11/09/1988 | EP0225351B1 Apparatus for drying sewage sludge |
| 11/02/1988 | EP0289057A1 Process and apparatus for the treatment of digested sewage sludge |
| 11/01/1988 | US4781944 Process and apparatus for fixing, encapsulating, stabilizing and detoxifying heavy metals and the like in metal-containing sludges, soils, ash and similar materials |
| 11/01/1988 | US4781842 With lime |
| 11/01/1988 | US4781840 Cationic and anionic lignin amines as flocculants |
| 11/01/1988 | US4781796 Heated continuous tube with conveyor; heating, connecting, and reaction zones |
| 10/20/1988 | WO1988007984A1 Composting plate system |
| 10/20/1988 | WO1988007978A1 Conditioning and hygienic treatment of sewage sludge and the like |
| 10/19/1988 | EP0286714A1 Electroosmotic dewaterer |
| 10/19/1988 | EP0173731B1 Process for dewatering municipal and other sewage sludges |
| 10/18/1988 | US4778606 Heating in a gaseous stream at a temperature sufficient to remove toxic material |
| 10/12/1988 | EP0286358A2 Procedure for treating low activity organic wastes from nuclear power plants with the aid of anaerobic fermentation |
| 10/12/1988 | CN87216227U Hydraulic mixer with synchronous pump, stirring rod and stirring head |
| 10/05/1988 | EP0285231A1 Method and apparatus for treating mixed organic and inorganic wastes |
| 10/05/1988 | EP0284754A1 A process for treating polluted soils |
| 10/04/1988 | US4775744 Cationic and anionic lignin amines |
| 09/28/1988 | EP0284602A1 Process and apparatus for ecologically beneficial and hygienic sludge treatment and disposal |
| 09/28/1988 | CN87212156U Comprehensive utilization device for solar energy and methane |
| 09/27/1988 | US4774006 Fluid treatment method |
| 09/27/1988 | US4773996 Apparatus for dewatering primary dewatered sludge pieces |
| 09/22/1988 | DE3707781A1 Apparatus for sludge dehydration |
| 09/21/1988 | EP0283153A1 Method of treating wastewater sludge |
| 09/21/1988 | EP0282621A1 Method and installation for sludge removal from waters |
| 09/20/1988 | US4772400 Method and facility for removing sludge from water |
| 09/14/1988 | EP0282276A1 Apparatus and method for effecting chemical reactions |
| 09/14/1988 | CN88105495A Treating technique of waste chronium-bearing residue with barium salt |
| 09/13/1988 | US4770793 Filter cake |
| 09/07/1988 | EP0281302A1 Process for effecting chemical reactions |
| 09/06/1988 | US4769157 Process for the thermal treatment of sludges |
| 09/06/1988 | US4769149 Method for the recovery of energy from waste and residues |
| 09/06/1988 | US4768292 Method and apparatus for drying sewage sludge |
| 08/30/1988 | US4767543 Mists, interfaces, pollution control, flashing |
| 08/30/1988 | CA1241463A1 Process and apparatus for handling waste from oil well operations |
| 08/25/1988 | WO1988006144A1 A method for treating polluted material |
| 08/23/1988 | US4765911 Two-stage treatment with sulfur dioxide |
| 08/23/1988 | US4765901 Oxidation of phenolec compounds before anaerobic treatment |
| 08/23/1988 | US4765900 Oxidation, deamination of animal manures |
| 08/23/1988 | US4765255 Perfected system for pyrolysing and/or drying biological sludge or similar |
| 08/23/1988 | CA1241129A1 Staged anaerobic reactor |
| 08/23/1988 | CA1240881A1 Waste treatment method and device |
| 08/18/1988 | DE3703606A1 Process for dewatering sludges |
| 08/17/1988 | EP0278745A2 Process for the treatment of waste |
| 08/17/1988 | CN87214563U Rotary buckle type water pressure sealed methane-generating pit |
| 08/17/1988 | CN87213846U Multi-functional methane-generating equipment |
| 08/10/1988 | EP0277760A1 Method of effecting accelerated oxidation reaction |
| 08/10/1988 | EP0277299A1 Sludge processing |
| 08/09/1988 | US4762527 Slurry fuel comprised of a heat treated, partially dewatered sludge with a particulate solid fuel and its method of manufacture |
| 08/09/1988 | US4761893 Sludge treatment process |
| 08/04/1988 | DE3702107A1 Utilisation of waste water downstream of simultaneous SO2 and NOx scrubbers |
| 07/28/1988 | DE3736657A1 Process for dewatering sewage sludge and plant for carrying out the process |
| 07/19/1988 | US4758339 Fermentation section, settler, gas discharging means |
| 07/13/1988 | CN85104232B Anaerobic fermentation equipment using stirring apparatus by bioenergy |
| 07/05/1988 | US4755305 Continuous dewatering method |
| 07/05/1988 | CA1238792A1 Process for dumping of particulate solid or pumpable solid and liquid waste materials in underground salt enclosed cavities, in particular salt caverns |
| 06/29/1988 | EP0272950A1 Process for the preparation from paper-making sludges of a granular product absorbing liquids well |
| 06/29/1988 | EP0272673A2 Method for conditioning and dewatering sludges |
| 06/29/1988 | CN87107033A Treatment of waste and rotary kiln therefor |
| 06/23/1988 | DE3643345A1 Process for stabilising polluted sludges |
| 06/23/1988 | DE3643205A1 Method for conditioning sewage sludge with calcium carbonate |
| 06/22/1988 | EP0271628A1 Process for the production of an upgraded product from sewage sludge |
| 06/16/1988 | WO1988004282A1 Sludge restructuring and conversion method |
| 06/15/1988 | CN87208448U Household methane generating pit |
| 06/14/1988 | US4751005 Wet oxidation with oxygen and composite metal oxide catalyst |
| 06/14/1988 | US4750274 Sludge processing |
| 06/07/1988 | US4749492 Dilution and settling slurry; flocculation |
| 06/07/1988 | US4749480 Reaction vessel |
| 06/02/1988 | WO1988003913A1 Method of biological purification of waste water from non-ionogenic surface-active substances |
| 06/01/1988 | DE3640181A1 Process for treating biomasses having a high water content |
| 05/31/1988 | US4747920 Solid-liquid separation process for fine particle suspensions by an electric and ultrasonic field |
| 05/25/1988 | CN87211102U Domestic multi-function automatic mathane generating pit in village |
| 05/24/1988 | US4746433 Biodegradation |
| 05/19/1988 | DE3637425A1 Process and apparatus for dewatering sludge-like materials |
| 05/19/1988 | DE3634650A1 Verfahren zur entsorgung von schadstoffbeladenen stoffen und verwendung des dabei hergestellten produktes A method for disposal of pollutant-laden materials and use of the product produced thereby |
| 05/18/1988 | EP0267338A1 Heat exchanger for fluid treatment apparatus |
| 05/18/1988 | CN87103636A Gasproof method for a marsh gas pool |
| 05/17/1988 | US4744909 Sewage treatment, oxidation |
| 05/17/1988 | US4744908 Process for effecting chemical reactions |
| 05/17/1988 | CA1236857A1 Composition and method for stabilization of sludge |