| Patents for C02F 11 - Treatment of sludge; Devices therefor (21,423) |
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| 08/01/1989 | US4853136 Process for oxidizing substances dissolved or in suspension in an aqueous solution |
| 08/01/1989 | US4852269 Combined sewage and lime slude treatment process |
| 07/27/1989 | WO1989006668A1 Process for treating colloidal solutions of lacquer sludges |
| 07/26/1989 | EP0324916A1 Process for upgrading solutions of lacquer sludges |
| 07/20/1989 | DE3800616A1 Process for eliminating heavy metals from aged, alkaline waste solutions, solutions, sludges, suspensions and waste solids, with processing of heavy metals to give marketable products or for safe landfilling |
| 07/19/1989 | EP0324566A2 Process and apparatus for separating organic contaminants from contaminated inert materials |
| 07/19/1989 | EP0323970A1 Sewage treatment. |
| 07/18/1989 | CA1257717A1 Anaerobic purification equipment for waste water |
| 07/18/1989 | CA1257550A1 Gravity belt thickener and belt press combination |
| 07/13/1989 | WO1989006246A1 Vinyl mono- and copolymers containing side-chains |
| 07/13/1989 | DE3744287A1 Arrangement and devices for gas removal and dechlorination of organic wastes |
| 07/12/1989 | EP0323847A1 Vinyl polymers and copolymers containing side chains |
| 07/12/1989 | EP0323610A1 Process and device for thickening waste water sludges and/or other organic sludges by means of separating water from solids |
| 07/12/1989 | CN2040906U Hydraulic methane device with movable cover |
| 07/11/1989 | US4846083 Heat treatment in kiln to liquid slag |
| 07/11/1989 | CA1257410A1 Reaction vessel |
| 07/04/1989 | US4844815 Stabilization of mercury-containing waste |
| 07/04/1989 | US4844807 Insitu hazardous waste treating apparatus and method of using same |
| 06/28/1989 | EP0322234A2 Process for the preparation of cationic polymers |
| 06/27/1989 | US4842728 Chemical reformer |
| 06/27/1989 | US4842715 Novel technique for rendering oily sludges environmentally acceptable |
| 06/27/1989 | US4842692 Chemical reformer |
| 06/27/1989 | CA1256603A1 Methane fermentation process for treating evaporator condensate from pulp making system |
| 06/21/1989 | EP0320949A1 Solidification process for hydrocarbon-containing mixtures of water and sludge, and use of the solidified sludge |
| 06/20/1989 | US4840736 Process for producing combustible sewage sludge filter cakes in filter presses |
| 06/20/1989 | CA1256089A1 High specific area material and use thereof for improving contact between phases or reactants implying physical and/or chemical and/or biological processes |
| 06/15/1989 | DE3741110A1 Procedure for the pyrolytic disposal of biological sludge, and plant for carrying out the procedure |
| 06/14/1989 | EP0319789A1 Process for producing a dried, granulated waste water sludge. |
| 06/13/1989 | US4839022 Method and apparatus for treating oil-water-solids sludges and refinery waste streams |
| 06/08/1989 | DE3739896A1 Appliance for treating industrial effluents or of leachate from tips |
| 05/30/1989 | US4834878 Apparatus for separating liquid from sludge |
| 05/30/1989 | US4834003 Combustion of aqueous sewage sludge by the fluidized bed process |
| 05/23/1989 | US4833185 Paving, bitumens, elastomers |
| 05/18/1989 | DE3725016A1 Process for drying and storing condensates and their pollutants situated therein which result from flue gas desulphurisation processes |
| 05/17/1989 | EP0315713A1 Process and installation for the treatment of waste water arising from the maintenance of livestock. |
| 05/16/1989 | US4830760 Emulsification with surfactants, then oxidation with alkali metal hypohalide |
| 05/16/1989 | US4830754 Method of recovering amine in a process for breaking emulsions and sludges |
| 05/16/1989 | US4829678 Sludge treatment process |
| 05/16/1989 | CA1254310A1 Wastewater treatment method |
| 05/03/1989 | EP0313900A1 Extremely halophilic methanogenic archaebacteria and process for the production of methane |
| 05/03/1989 | DE3734791A1 Method for improving the utilisation and discharge technique of liquid manure in agriculture |
| 04/25/1989 | US4824571 Methanation |
| 04/25/1989 | CA1253267A1 Wastewater treatment method |
| 04/20/1989 | DE3734281A1 Method for dewatering water-containing and, in particular, contaminated water-containing sludge and solids aggregates, and appliance suitable therefor |
| 04/20/1989 | DE3727408A1 Plant for sludge utilization |
| 04/18/1989 | US4822497 Method for solids separation in a wet oxidation type process |
| 04/18/1989 | US4822394 On site wet oxidation of municipal wastes producing carbon dioxide |
| 04/13/1989 | DE3733532A1 Process for disposing of a sewage sludge produced in wastewater purification |
| 04/11/1989 | CA1252339A1 Sewage sludge incineration process |
| 04/06/1989 | WO1989002874A1 Method and apparatus for solids separation in a wet oxidation type process |
| 04/06/1989 | WO1989002766A1 Method for stabilizing, solidifying and storing waste material |
| 04/05/1989 | EP0310264A2 Paper conversion plant waste treatment process |
| 04/05/1989 | CN1032190A Method and means for production of micro-organism cell mass |
| 04/04/1989 | US4818405 Sludge treatment |
| 04/04/1989 | US4818393 Apparatus for the anaerobic treatment of waste water |
| 04/04/1989 | US4818390 Apparatus for detoxification of lagoons |
| 03/29/1989 | EP0262144B1 Process for recovering gas byproducts from refuse |
| 03/28/1989 | US4816164 Paper conversion plant waste treatment process |
| 03/28/1989 | CA1251749A1 Process for the preparation of methane using algal fermentation |
| 03/23/1989 | WO1989002481A1 Process and device for processing hydroxide sludges |
| 03/23/1989 | DE3729913A1 Verfahren und vorrichtung zur aufarbeitung von hydroxidschlaemmen Method and device for regeneration treatment of hydroxidschlaemmen |
| 03/23/1989 | DE3729894A1 Plant for biological sludge detoxification and sludge mineralisation |
| 03/22/1989 | EP0307678A1 Method for the treatment of sewage sludges and/or industrial sludges containing organic matter |
| 03/15/1989 | EP0307242A1 Process for the treatment of organic contaminants in solid or liquid phase wastes |
| 03/14/1989 | US4812243 Wet oxidation system |
| 03/14/1989 | US4812234 Oil sludge conditioning equipment |
| 03/14/1989 | US4812225 Conditioning |
| 03/14/1989 | CA1251290A1 Process and apparatus for anaerobic fermentation of solid wastes in water in two phases |
| 03/08/1989 | EP0306466A2 Method and means for the production of a micro-organism cell mass |
| 03/08/1989 | EP0305912A1 Method for the treatment of malodorous sulfur-containing waste waters |
| 03/08/1989 | EP0305779A2 Process for the thermal elimination of waste materials |
| 03/07/1989 | US4810682 Production of useful materials including synthetic nepheline from Bayer red mud |
| 03/07/1989 | US4810274 Useful in desalination, concentration, water reuse |
| 03/01/1989 | EP0304783A1 Combustion of aqueous sewage sludge by the fluidized-bed method |
| 02/28/1989 | US4808305 Apparatus for sludge pond treatment |
| 02/28/1989 | US4808266 Dripping, pressing, evaporation with gas flow while on single porous support |
| 02/23/1989 | WO1989001456A1 Method for improving the utilization of polyelectrolytes in dewatering aqueous suspensions |
| 02/15/1989 | EP0303504A1 Underground chemical reactor |
| 02/15/1989 | EP0303339A2 Method and apparatus for treating sludges |
| 02/09/1989 | DE3725070A1 Sludge vessel |
| 02/08/1989 | EP0302298A2 Disinfection of sewage sludge |
| 02/07/1989 | US4803054 Asymmetric heat-exchange reaction apparatus for effecting chemical reactions |
| 02/07/1989 | US4802995 Method for decomposing the cyanide radical in cyanide-bearing wastes or materials |
| 02/07/1989 | US4802964 Liquid separation process for suspensions by a pulsating electrical current |
| 02/01/1989 | EP0301858A1 In-situ formation of soluble silicates from biogenetic silica in chemical fixation/solidification treatment of wastes |
| 01/26/1989 | WO1989000550A1 Process for the conversion and working up of a mixture of organic matter, anorganic matter and water to a nearly dry product, as well as an installation for the execution of the process and application thereof by the conversion of manure slurry |
| 01/25/1989 | EP0300348A2 Biogas reactor |
| 01/25/1989 | CN1030627A Spherical hanging-poured internal and external solid steel dies for building methane-generating pit |
| 01/18/1989 | CN2031002U Combined reinforced fibreglass methane generator |
| 01/17/1989 | US4798869 Polymers/shell-core/, high impact, transparent |
| 01/11/1989 | EP0298592A1 Process for recovering regenerated adsorbent particles and separating ash therefrom |
| 01/03/1989 | US4795555 Molded block arrangement for a ground covering for composting waste purification |
| 12/29/1988 | WO1988010243A1 Process for chemical stabilization of heavy metal bearing dusts and sludges, such as eaf dust |
| 12/28/1988 | CN88103362A Wet processing method of boron-lime mud powder |
| 12/28/1988 | CA1247759A Sewage sludge treatment apparatus and process |
| 12/27/1988 | US4793937 Method and apparatus for separating contaminants from fluidizable solids |
| 12/27/1988 | US4793931 Process for treatment of organic contaminants in solid or liquid phase wastes |
| 12/27/1988 | US4793927 Method of treating sewage |
| 12/27/1988 | US4793919 Static mixer vane chemical reactor for reduction of oxygen demand in wastes |
| 12/27/1988 | US4793855 Process for the gasification of sewage sludge |