| Patents for B09C 1 - Reclamation of contaminated soil (11,202) |
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| 10/13/1991 | WO1991016154A1 A process for the combined treatment of waste materials |
| 10/12/1991 | WO1991015440A1 Biological system for degrading nitroaromatics in water and soils |
| 10/10/1991 | DE4031581C1 Purificn. of contaminated earth - comprises spraying hot purified ground with dosed amts. of water and slurry and opt. adding compost |
| 10/10/1991 | DE4011206A1 Cleaning of ground contaminated by oil from tankers - using mobile burning equipment which is easier, quicker and cheaper |
| 10/09/1991 | EP0450459A2 Method and device for the biological purification of contaminated soils |
| 10/09/1991 | EP0449976A1 AN EXTRACTION PROCESS AND APPARATUS TO REMOVE PCBs FROM SOIL AND SLUDGE |
| 10/08/1991 | US5055204 Tank with air injector for mixing dissolved oxygen into slurry to maintain slurries solids in suspension; trailer for transporting to treatment site |
| 10/08/1991 | US5055196 Comminuting and dispersing surfactant |
| 10/08/1991 | US5054961 Onsite soil treatment process |
| 10/08/1991 | US5054506 Rock and gravel cleaner |
| 10/02/1991 | EP0449090A1 Process for the valorisation of the light product from the shredding of automotive vehicles |
| 10/02/1991 | DE4000148A1 Appts. for decontaminating contaminated earth - by sepg. solids using high pressure water and air, washing solids with wash fluid floc-filtering obtd. colloidal dispersion, etc. |
| 10/01/1991 | WO1991015248A1 Method and apparatus for treating hazardous waste or other hydrocarbonaceous material |
| 10/01/1991 | US5053142 Method for treating polluted material |
| 10/01/1991 | US5053082 Using cyclone separator and/or centrifuge |
| 10/01/1991 | US5052858 Apparatus and method for thermally stripping volatile organic compounds from soil |
| 10/01/1991 | CA2079332A1 Method and apparatus for treating hazardous waste or other hydrocarbonaceous material |
| 09/25/1991 | EP0448335A2 Asphaltic concrete product and a method for the fixation of contaminated soils in the asphaltic concrete |
| 09/25/1991 | EP0447530A1 Treatment of hazardous waste material. |
| 09/25/1991 | EP0431085A4 Method of decontaminating earth and/or natural gas processing equipment |
| 09/25/1991 | EP0420975A4 Degradation of polychlorinated biphenyls |
| 09/25/1991 | EP0418374A4 Sulfate scale dissolution |
| 09/25/1991 | CN1014082B Glow discharge decomposing device |
| 09/24/1991 | US5051166 Soil rinsing apparatus |
| 09/24/1991 | US5051030 Chemical detoxification process for treatment of soils contaminated with halogenated organic compounds |
| 09/24/1991 | US5050677 Well construction method |
| 09/24/1991 | US5050676 Process for two phase vacuum extraction of soil contaminants |
| 09/24/1991 | US5050511 Reduction of organic waste,transferring and cooling, condensation followed by recycling |
| 09/21/1991 | CA2036068A1 Asphaltic concrete product and a method for the fixation of contaminated soils in the asphaltic concrete |
| 09/19/1991 | WO1991014075A1 Process and apparatus for cleaning particulate solids |
| 09/19/1991 | DE4008270A1 Treating contaminated ground - by modifying air and water brought to surface by vertical shafts |
| 09/17/1991 | US5049297 Sulfate scale dissolution |
| 09/17/1991 | US5049037 Automatic well pump skimmer level control |
| 09/12/1991 | DE4007703A1 Purifying contaminated ground - by using multiple independent bio-reactors drawn in series or parallel over affected area |
| 09/12/1991 | DE4006826A1 Processing e.g. refuse incineration ash contg. hazardous material - to uniform, miscible consistency for mixing with expandable sedimentary rock |
| 09/07/1991 | WO1991013698A1 Soil remediation process and system |
| 09/03/1991 | US5045240 Contaminated soil restoration method |
| 09/03/1991 | CA1288217C Process for the removal of organic contaminants from soils and sediment |
| 08/28/1991 | EP0442902A1 A process and device for treating contaminated soil. |
| 08/21/1991 | EP0442454A1 Method and apparatus for removing wastes from sub-soil formations in the ground |
| 08/16/1991 | CA2036364A1 Method and apparatus for the decontamination of formations below ground level |
| 08/14/1991 | EP0441464A2 In situ soil decontamination method and apparatus |
| 08/14/1991 | EP0441356A2 Method and plant for the sanitation of soil |
| 08/14/1991 | EP0441169A2 Method and device for in situ remediation of contaminated areas |
| 08/14/1991 | EP0267962B1 Bacterial composition and method for purifying water and soil of oil pollution |
| 08/14/1991 | DE4004368A1 Fine coke addn. to contaminated earth before washing - aids sepn. of heavy metals and hydrocarbon(s) |
| 08/13/1991 | US5039415 Dispersing liquid mixture of bacteria and water into soil particlate stream; accuracy, in situ, pollution control |
| 08/13/1991 | US5039350 Method for the decomposition of halogenated organic compounds in a contaminated medium |
| 08/08/1991 | WO1991011543A1 Process for removing oil from finely divided solid material, especially metal-containing production waste and soiled floors |
| 08/08/1991 | WO1991011097A1 Process and device for seed treatment |
| 08/08/1991 | WO1991011095A1 Process to combat harmful organisms originating in seeds or soil by means of seed treatment |
| 08/08/1991 | DE4003693A1 Biological cleaning of contaminated soil - is in contact with limestone or dolomite |
| 08/06/1991 | US5037240 In-situ soil treatment process |
| 07/30/1991 | US5035537 Method of decontaminating soil, porous rock and the like |
| 07/25/1991 | WO1991010624A1 System and method for treating sewage or other fluids |
| 07/25/1991 | DE4100804A1 Rapid removal of cyanide from ground-water - by aeration, enrichment with nutrients, filtration then return to the soil |
| 07/24/1991 | EP0437805A1 Apparatus for the expulsion of light volatile pollutants from ground water |
| 07/18/1991 | DE4040838A1 Pulsating inert gas expelling volatile contaminants from terrain - and ground water prevents explosive mixt. formation |
| 07/17/1991 | CA2034228A1 System for driving volatile contaminants from ground water |
| 07/16/1991 | US5032291 Catalytic reduction of nitro- and nitroso- substituted compounds |
| 07/16/1991 | US5032042 Method and apparatus for eliminating non-naturally occurring subsurface, liquid toxic contaminants from soil |
| 07/11/1991 | DE4000151A1 Mixing solids with gas and liq. into streams - whose frictional interaction separates components |
| 07/11/1991 | DE4000150A1 Sepg. and washing solids in conveyor liq. streams - includes impinging particles obliquely in tapering friction chamber |
| 07/10/1991 | EP0436493A2 Method and composition for biological degradation of oil pollution |
| 07/09/1991 | US5030034 Soil pollution monitoring system and apparatus |
| 07/04/1991 | DE3943147A1 Treating contaminated soil and ground water - by mixing with quicklime and reacting with hydrogen peroxide |
| 07/02/1991 | US5028326 Apparatus for separating organic material from sludge |
| 07/02/1991 | US5028252 Method of and composition for the fertilization, detoxification and deacidification of soil |
| 07/02/1991 | US5028212 Method and apparatus for removal of floating immiscible liquids |
| 06/27/1991 | DE3941357A1 Forming sealing structure under contaminated ground - uses tunnel-shaped pits on sealing section either side with three coupling lines |
| 06/26/1991 | CN1052440A Treatment of hazardous waste material |
| 06/25/1991 | US5026481 Liquid membrane catalytic scale dissolution method |
| 06/25/1991 | US5026432 Vacuum; pneumatic airstream; continuous collection; closed system, hazardous materials; polychlorinated biphenyls |
| 06/20/1991 | DE3941358A1 Sealing undersurface of layer of contaminated soil - by placing layer of waterproof material under soil |
| 06/19/1991 | EP0432812A1 Method for cleaning contaminated soil |
| 06/19/1991 | EP0432651A1 Process for the purification of contaminated soils from biodegradable harmful substances |
| 06/19/1991 | EP0321456B1 Process for decomposing mineral oil derivatives contained in washings and sludges |
| 06/18/1991 | US5024556 System for enhanced destruction of hazardous wastes by in situ vitrification of soil |
| 06/13/1991 | WO1991008275A1 Process for recovery and treatment of a diverse waste stream |
| 06/13/1991 | WO1991008274A1 Process for recovery and treatment of hazardous and non-hazardous components from a waste stream |
| 06/13/1991 | DE4037743A1 Installation for decontaminating granular material - by heating material to gasify contaminating liq. |
| 06/12/1991 | EP0431384A1 Apparatus for the expulsion of volatile pollutants from ground water |
| 06/12/1991 | EP0431085A1 Method of decontaminating earth. |
| 06/12/1991 | EP0431077A1 Process and device for the heat treatment of gasified material. |
| 06/09/1991 | WO1991009254A1 Method and apparatus for treating contaminated soil |
| 06/09/1991 | CA2046586A1 Method and apparatus for treating contaminated soil |
| 06/06/1991 | DE4001015C1 Decontamination process - comprises contacting contaminated material with formaldehyde-casein or - caseinate |
| 06/05/1991 | EP0430370A2 Process for purifying contaminated soil |
| 05/29/1991 | WO1991008176A1 Cleaning halogenated contaminants from groundwater |
| 05/29/1991 | EP0429137A1 Process for the in-situ removal of pollutants from the soil |
| 05/28/1991 | US5019245 Method for recovery of hydrocarbons form contaminated soil or refuse materials |
| 05/28/1991 | US5018576 Process for in situ decontamination of subsurface soil and groundwater |
| 05/28/1991 | CA1284470C Process and apparatus for fixing, encapsulating, stabilizing and detoxifying heavy metals and the like in metal-containing sludges, soils, ashand similar materials |
| 05/21/1991 | US5017289 Process for in situ biodegradation of hydrocarbon contaminated soil |
| 05/16/1991 | WO1991006681A1 Method for enhancing the biodegradation of biodegradable polymeric materials and of articles fabricated therefrom |
| 05/16/1991 | WO1991006344A1 A method and a device for removing at least one element from a more solid material by means of a liquid |
| 05/16/1991 | WO1991006343A1 A method of removing heavy metals form soil, sludge, compost and similar materials |
| 05/16/1991 | DE3844689C2 Cleaning contaminated ground in successive vertical operations |
| 05/08/1991 | EP0425599A1 Process and device for removing a liquid phase floating on the surface of a water table. |
| 05/08/1991 | DE4001320A1 Micro-biological cleaning of soil contaminated with harmful substances - using explosive cartridge contg. cpds. promoting microorganisms breaking down harmful substances |