| Patents for C02F 11 - Treatment of sludge; Devices therefor (21,423) |
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| 05/10/1988 | US4742623 Process and equipment for the indirect drying of sludge, especially for the drying of wastewater sludge |
| 05/10/1988 | CA1236597A1 Method of treating peroxide-containing wastewater |
| 05/10/1988 | CA1236596A1 Method of controlling an anaerobic treatment process |
| 05/05/1988 | WO1988003048A1 Process and installation for dewatering waste water sludge |
| 05/03/1988 | US4741836 Sludge treatment process |
| 05/03/1988 | US4741386 Fluid treatment apparatus |
| 04/28/1988 | DE3635766A1 Apparatus for dewatering sludge and similar substances |
| 04/27/1988 | EP0264900A2 Pre-dehydration step for mud and similar products |
| 04/21/1988 | WO1988002739A1 Process for purifying polluted materials and use of the product thus obtained |
| 04/20/1988 | EP0263859A1 Process for preparing filter dust, dredging sludge (harbour sludge) and similar waste matter for final disposal. |
| 04/20/1988 | CN87208431U Methane-generating pit |
| 04/14/1988 | DE3734091A1 Process for converting wastes containing organic materials |
| 04/12/1988 | CA1234974A1 Process for the cooking-dehydration and sterilization-drying of organic wastes, and device for applying said process |
| 04/07/1988 | WO1988002284A1 Treatment of waste and a rotary kiln therefor |
| 04/07/1988 | WO1988002269A1 Process for immobilizing harmful substances in the ground or in ground-like materials |
| 04/07/1988 | DE3701717C1 Binder and building material mixture produced therefrom |
| 04/07/1988 | DE3631545A1 Process and plant for the thermophilic pretreatment of sewage sludge with simultaneous decontamination |
| 04/06/1988 | EP0262144A1 Process for recovering gas byproducts from refuse. |
| 04/05/1988 | US4735729 Separation from aqeous suspension by mixing with thermally conditioned sludge |
| 03/30/1988 | EP0262054A1 Process for the catalytic oxidation of phenols |
| 03/30/1988 | EP0261822A2 Treatment of aqueous waste material |
| 03/29/1988 | CA1234477A1 Method for treatment of impounded material (sludges) from the chemical treatment of spent sulfuric acid with lime |
| 03/24/1988 | WO1988001985A1 Sewage treatment |
| 03/17/1988 | DE3630097A1 Process and apparatus for the incineration, gasification or degassing of effluents or aqueous sludges |
| 03/16/1988 | CN87208653U Methane pit with hydraulic seal wovable top |
| 03/10/1988 | DE3629954A1 Process and apparatus for dewatering wet material, in particular slip |
| 03/02/1988 | EP0257983A2 Method for treating waste water |
| 03/01/1988 | US4728437 Treatment and disposal of wastewaters containing carbon black and ash |
| 03/01/1988 | CA1233359A1 Apparatus for dewatering water-containing materials |
| 02/23/1988 | US4726302 Method of reducing the nitrogen oxide content of a flue gas produced by a fossil-fuel power plant |
| 02/04/1988 | DE3625452A1 Drying substances in permanent throughflow |
| 02/03/1988 | CN85102687B Protein plastics made from residual actived sludge |
| 02/02/1988 | CA1232150A1 Plant for processing organic material |
| 01/27/1988 | EP0254024A2 Process and installation for converting sewage sludge filter cake to oil, gas and coke by pyrolysis |
| 01/27/1988 | EP0253815A1 Apparatus for gas-producing treatment of organic material |
| 01/26/1988 | US4721575 Method and apparatus for controlled chemical reactions |
| 01/26/1988 | EP0165305A4 Chemical reformer. |
| 01/21/1988 | DE3622750A1 Process and apparatus for sanitising sludge |
| 01/13/1988 | EP0252260A1 Chemical agent for making sludge or mud particles hydrophobic |
| 01/12/1988 | US4719015 Apparatus and method for processing sewage scum |
| 01/07/1988 | EP0252069A2 Apparatus for waste sludge treatment |
| 01/07/1988 | EP0250639A1 Method and installation for sludge removal from waters |
| 01/07/1988 | EP0250475A1 Method and plant for the recovery of energy from waste and residues. |
| 01/05/1988 | USH404 Disposal of inorganic chemical wastes |
| 01/05/1988 | US4716843 Waste fuel combustion system |
| 12/23/1987 | CN86209143U Methane gas pool having both try and wet pool |
| 12/22/1987 | US4714032 Pollution-free pressurized combustion utilizing a controlled concentration of water vapor |
| 12/08/1987 | US4711721 Waste water sludge thickener with odor control |
| 12/03/1987 | WO1987007189A1 Composition to encapsulate toxic metal and/or organic pollutants from wastes |
| 12/03/1987 | WO1987007175A1 Sludge scraper mechanism for settling tanks in sewage treatment plants |
| 12/03/1987 | DE3617848A1 Process for removing heavy metals from sewage sludges or any type of sludges |
| 12/02/1987 | EP0247285A1 Process for the preparation of briquettes from moist waste |
| 12/02/1987 | CN87103419A Method for producing compacts from moist waste and device for carrying out the method |
| 12/01/1987 | US4710304 Aged aqueous solution of high molecular weight polymer added to sludge |
| 12/01/1987 | US4710300 Method for processing of organic materials containing nitrogen compounds |
| 12/01/1987 | US4710298 Blend of cationic flocculant and fibers |
| 11/24/1987 | CA1229686A1 Process and apparatus for the removal of heavy metals contained in wastewater |
| 11/19/1987 | EP0245775A2 Method and apparatus for treating polluted fluids |
| 11/05/1987 | WO1987006573A1 Installation for treatment of sediments of natural and sewage waters |
| 11/05/1987 | DE3714591A1 Process and apparatus for treating digested sewage sludge |
| 11/04/1987 | EP0244266A2 Reduction burning and compositions therefor |
| 11/04/1987 | EP0244029A1 Equipment for the anaerobic purification of waste water |
| 11/03/1987 | CA1228872A1 Method of and apparatus for the treatment of sludge from a flue gas desulfurization plant |
| 10/27/1987 | US4702745 Process for dewatering high moisture, porous organic solid |
| 10/22/1987 | WO1987006163A1 Process for preparing filter dust, dredging sludge (harbour sludge) and similar waste matter for final disposal |
| 10/21/1987 | EP0241802A2 Putrefaction and heat recuperation plant for organic waste products |
| 10/21/1987 | EP0241496A1 Process for simultaneous extraction of so 2? and no x? contained in waste gases |
| 10/15/1987 | DE3709316A1 Process for purifying waste water and for sludge treatment |
| 10/15/1987 | DE3612381A1 Verfahren zur aufbereitung von filterstaeuben, baggerschlaemmen (hafenschlamm) und dergl. abfallmaterialien fuer die endlagerung Process for the preparation of filterstaeuben, excavators sludges (harbor sludge) and the like. Waste materials for the endlagerung |
| 10/15/1987 | DE3612313A1 Process and apparatus for separating the solids from the carrier liquid in suspensions |
| 10/13/1987 | US4699721 Method and apparatus for separating contaminants from fluidizable solids |
| 10/13/1987 | US4699720 Catalyst supported on carrier of honeycomb construction |
| 10/13/1987 | CA1228182A1 Process for thickening digested sludge |
| 10/07/1987 | EP0240340A2 Method and reaction apparatus for effecting controlled chemical reactions |
| 10/07/1987 | EP0239701A2 Method of removing scale from wet oxidation treatment apparatus |
| 10/07/1987 | EP0239683A1 Process for producing solid granules from mineral sludges |
| 10/06/1987 | US4698162 Method for prevention of metallic precipitate reoxidation/redissolution in aqueous systems |
| 09/23/1987 | EP0238148A1 Method for purifying waste water |
| 09/23/1987 | CN87100738A Process and apparatus for fixing, encapsulating stabilizing and detoxifying heavy metals and the like in metal-containing sludges, soils, ash and similar materials |
| 09/16/1987 | EP0237430A1 Process for methanic fermentation with a fixed film and double flow |
| 09/09/1987 | EP0235933A1 Dewatering slurries |
| 09/09/1987 | EP0235637A2 Process and apparatus for purifying waste water sludge of organic origin |
| 09/08/1987 | US4692252 Method of removing scale from wet oxidation treatment apparatus |
| 09/08/1987 | US4692249 Flotation process for sludge recovery and energy conversion |
| 09/08/1987 | US4692061 Process for dumping of particulate solid waste materials in underground salt enclosed cavitives |
| 09/02/1987 | EP0234827A2 Metal recovery process |
| 09/02/1987 | EP0234087A2 Process and apparatus for fixing, encapsulating, stabilizing and detoxifying heavy metals and the like in metal-containing sludges, soils, ash and similar materials |
| 09/01/1987 | US4690971 Water absorbing polymers |
| 08/27/1987 | WO1987005005A1 A method and an apparatus for separating solid particles from a liquid |
| 08/25/1987 | US4689121 Recovery of phosphorus from sludge |
| 08/20/1987 | DE3703560A1 Process and device for introduction of gas into, and flotation of, free-flowing biomass suspensions |
| 08/19/1987 | EP0232861A2 Method and apparatus for the disintegration and destruction of hazardous and toxic sludge materials |
| 08/19/1987 | EP0232735A2 Apparatus for dewatering primary dewatered sludge pieces |
| 08/18/1987 | US4687373 Composition to encapsulate toxic metal and/or organic pollutants from wastes |
| 08/11/1987 | US4685220 Method and apparatus for separating dioxin from fluidizable solids |
| 08/11/1987 | CA1225301A1 Dewatering of mineral slurries |
| 08/06/1987 | DE3602702A1 Process and device for increasing the solids of moderately dewatered sewage sludges by burnt lime or other additives |
| 08/05/1987 | EP0230913A2 Method for pretreatment of both solid waste and waste not yet solidified which is to be introduced into underground salt cavities or caverns by means of free fall through a soil pipe |
| 08/04/1987 | CA1225062A1 Processes and apparatus for the conversion of sludges |
| 07/29/1987 | CN86108846A Process for treating waste water by wet oxidations |