| Patents for B09C 1 - Reclamation of contaminated soil (11,202) |
|---|
| 05/08/1991 | DE3941951A1 Combined chemical-biological treatment of contaminated waste - has washing reaction operating intermittently |
| 05/08/1991 | DE3937034A1 Decontamination of limited area of ground newly contaminated - with oil, etc., by forming concrete barrier below contamination and flushing with oil-absorbent fluid |
| 05/07/1991 | CA1283872C Process for the degradation of environmentally persistent organic compounds |
| 04/30/1991 | US5011329 In situ soil decontamination method and apparatus |
| 04/30/1991 | US5010776 Environmental contamination detection and analyzing system and method |
| 04/25/1991 | DE4022913A1 Reclaiming ground contaminated with heavy metals, etc. - by removing contaminated earth, homogenising, flattening excavated region, forming seal and manhole with alkali binder |
| 04/24/1991 | EP0423900A1 Method for separating contaminants from soil |
| 04/23/1991 | US5009999 Aerobic process using Pseudomonas |
| 04/23/1991 | US5009793 Acidification to dissolve as soluble salts, oxidation and precipitation as hydroxides; control of PH for preferential separation |
| 04/23/1991 | US5009266 Method for in situ contaminant extraction from soil |
| 04/18/1991 | DE4001558C1 Decontaminating soil contg. mineral oil hydrocarbon - by three-stage biological degradation of contaminants under non-aerobic and aerobic conditions |
| 04/17/1991 | EP0423039A1 Process and device for decontaminating solid materials |
| 04/16/1991 | US5008019 Displacing with aqueous alkaline polymer solution |
| 04/16/1991 | US5007771 Method for treating contaminated soil by biological degradation on a sloped surface |
| 04/13/1991 | CA2027474A1 Solid products decontamination apparatus and process |
| 04/11/1991 | WO1991005586A1 Treatment of hazardous waste material |
| 04/11/1991 | CA2042599A1 Treatment of hazardous waste material |
| 04/10/1991 | EP0420975A1 Degradation of polychlorinated biphenyls |
| 04/10/1991 | EP0420957A1 Thermal treatment process for organically contaminated material |
| 04/09/1991 | US5006250 In-situ biodegradation of halogenated aliphatic compounds as impurities in underground water supply by microbacteria |
| 04/09/1991 | US5005495 Apparatus and method for removing volatile organic contaminants from particulate material |
| 04/03/1991 | EP0420656A2 Process and apparatus for two phase vacuum extraction of soil contaminants |
| 04/02/1991 | US5004373 Method for initiating in-situ vitrification using an impregnated cord |
| 03/28/1991 | DE3931293A1 Air sample extractor for measuring harmful material concn. in earth - has measuring arrangement connected to suction tube inside hollow conical probe of steel with air openings |
| 03/28/1991 | DE3931017A1 Contaminated soil cleaning - by atomic hydrogen passing through suspension in electrolytic cell |
| 03/28/1991 | DE3931013A1 Arrangement for removing volatile impurities from ground water - in which efficiency of system for passing cleaning gas through water in borehole is improved by recirculating some of used cleaning gas |
| 03/27/1991 | EP0418572A1 Device for removing light volatile contaminants from ground water |
| 03/27/1991 | EP0418570A1 Device for the purification of polluted ground water |
| 03/27/1991 | EP0418374A1 Sulfate scale dissolution. |
| 03/26/1991 | US5002431 Method of forming a horizontal contamination barrier |
| 03/21/1991 | WO1991003280A1 Apparatus for removing volatile contaminants from soil |
| 03/20/1991 | EP0417881A1 Method of sealing permeable unconsolidated materials |
| 03/20/1991 | EP0417238A1 Silicon-containing environment-protective agent adsorbing radioactive metal isotopes and toxic heavy metals and a pharmaceutical composition containing same. |
| 03/14/1991 | DE4026320A1 Verfahren zur reinigung und aufbereitung von verunreinigtem gut Process for cleaning and treatment of contaminated well |
| 03/14/1991 | DE3929634A1 Removing hydrocyanic acid and cyanide(s) from water - by introduction of aldehyde, conversion to nitrile and oxidn. to acid |
| 03/12/1991 | US4998848 Method and apparatus for removing ground contaminants |
| 03/12/1991 | US4998585 Floating layer recovery apparatus |
| 03/12/1991 | US4998486 Landfill pollution control for polychlorinated biphenyls, firing |
| 03/07/1991 | WO1991002565A1 Process for purifying and processing contaminated materials |
| 03/07/1991 | DE3928427A1 Removing heavy metals, esp. mercury from contaminated earth - by repeated washing and fractionation forming conc, fraction for furnace |
| 03/06/1991 | EP0326561B1 Process for immobilizing harmful substances in the ground or in ground-like materials |
| 03/05/1991 | US4997313 Leaching |
| 02/28/1991 | DE3938464A1 Cleaning contaminated solid materials - by mixing with washing fluid contg. chemical agent which dissolves contaminants and then adding biological agent |
| 02/28/1991 | DE3937593C1 Aerobic microbial purificn. of contaminated underground water - by drawing up through boreholes, super-saturating with oxygen and additives, feeding to bio-reactor, etc. |
| 02/27/1991 | EP0413947A1 Method and device for cleaning soils, contaminated by pollutants |
| 02/26/1991 | US4995190 Soil sterilization apparatus |
| 02/26/1991 | CA1280558C Composition to encapsulate toxic metal and/or organic pollutants from wastes |
| 02/25/1991 | WO1991002592A1 Process for treating contaminated soil |
| 02/25/1991 | CA2064800A1 Process for treating contaminated soil |
| 02/21/1991 | WO1991001822A1 Correction method for contaminated sites |
| 02/19/1991 | US4993943 Apparatus and method for the removal of higher and lower volatility organic contaminants from soil |
| 02/19/1991 | US4993873 Process for treating contaminated earth |
| 02/19/1991 | CA1280278C Method for distributing an aqueous solution containing a peroxygen in clay |
| 02/17/1991 | WO1991002849A1 Process for in situ decontamination of subsurface soil and groundwater |
| 02/13/1991 | EP0412472A1 Method and apparatus for oxygenating the soil |
| 02/12/1991 | US4992174 Fixed bed bioreactor remediation system |
| 02/07/1991 | DE3939745A1 Pyrolysis gas treatment - by indirectly heating contaminated soil and transferring to coking plant, etc. |
| 02/06/1991 | EP0410971A1 Process for treating contaminated soil |
| 02/06/1991 | EP0329661B1 Process for treating contaminated earth |
| 02/05/1991 | US4990031 Treatment of mine tailings |
| 01/29/1991 | US4988427 Liquid/solid separation unit |
| 01/29/1991 | US4988376 Heating with fluxing agent to form slag |
| 01/23/1991 | EP0323482B1 Process for purifying polluted materials and use of the product thus obtained |
| 01/22/1991 | WO1991001392A1 Method of removing ions |
| 01/22/1991 | CA2064224A1 Method of removing ions |
| 01/16/1991 | EP0407546A1 Process for consolidating and sealing old refuse dumps. |
| 01/15/1991 | US4985083 Method for decontaminating a material and an assembly for carrying out said method |
| 01/15/1991 | US4984594 Vacuum method for removing soil contamination utilizing surface electrical heating |
| 01/15/1991 | CA1279028C Process and device useable, among other things, for washing and desorbing solids containing hydrocarbon |
| 01/10/1991 | DE3921336A1 Biological decontamination of soil - using plants, esp. polygonum sachalinense |
| 01/09/1991 | EP0383789A4 A process for in situ biodegradation of hydrocarbon contaminated soil |
| 01/08/1991 | US4983782 Liquids phase hydrogenation |
| 01/08/1991 | US4982788 Apparatus and method for removing volatile contaminants from the ground |
| 01/02/1991 | EP0405067A2 Device for removing volatile contaminants from soil or similar |
| 01/01/1991 | US4981650 Method for treatment of dioxin-contaminated media |
| 01/01/1991 | US4981579 Process for separating extractable organic material from compositions comprising said extractable organic material intermixed with solids and water |
| 01/01/1991 | US4981394 Landfill |
| 01/01/1991 | US4981393 Method and apparatus for cellularly isolating, treating and/or removing strongly polluted material present in or on the soil |
| 12/27/1990 | EP0404466A1 Biological remediation of creosote- and similarly-contaminated sites |
| 12/27/1990 | EP0403895A2 Process for purifying a pollutant containing soil area |
| 12/27/1990 | EP0403669A1 Method and device for the elution of a granular material |
| 12/25/1990 | US4980077 Method for removing alkaline sulfate scale |
| 12/25/1990 | US4980030 Heating to volatilize solvent and cure paint resin; collecting solids; removal |
| 12/25/1990 | US4979886 Spray aeration of heated water stream under vacuum |
| 12/19/1990 | EP0402737A2 Process and apparatus for the treatment of sludges containing heavy metals |
| 12/18/1990 | US4978508 Blending with water and surfactant, reacting with ozone, illuminating with ultraviolet radiation, screening, flocculation and segmentation |
| 12/18/1990 | US4977839 Process and apparatus for separating organic contaminants from contaminated inert materials |
| 12/13/1990 | WO1990015287A1 Process and device for the heat treatment of gasified material |
| 12/13/1990 | WO1990014892A1 Method of recovery of hydrocarbons from contaminated soil or refuse materials |
| 12/13/1990 | DE4001011C1 Ground water flow control - comprises shaft sunk into ground water levels with successive permeable and impermeable wall areas |
| 12/12/1990 | EP0402158A2 Apparatus and method for bioremediation of sites contaminated with hazardous substances |
| 12/12/1990 | EP0402157A1 Fixed bed bioreactor remediation system |
| 12/12/1990 | EP0401811A1 Apparatus for the thermal treatment of organic and inorganic materials |
| 12/11/1990 | CA1277622C Apparatus and method for confining and decontaminating soil |
| 12/08/1990 | CA2018622A1 Fixed bed bioreactor remediation system |
| 12/08/1990 | CA2018621A1 Apparatus and method for bioremediation of sites contaminated with hazardous substances |
| 12/06/1990 | DE3929663A1 Flue gas purification - in thermal treatment of earth contg. pollutants at lower temps. than for combustion |
| 12/04/1990 | US4975198 Process for the removal of organic contaminants from soils and sediment |
| 12/04/1990 | US4974528 Method and apparatus for the treatment of contaminated soil |
| 11/28/1990 | EP0399393A2 Apparatus for the removal by suction of air enriched with gaseous impurities from an area of contaminated soil |