Class 405/128.8 - With heat

Subclass of Class 405 - Hydraulic and earth engineering
Definition: Subject matter wherein the temperature of the soil is elevated
No. of patents: 34
Last issue date: 11/17/2009

Number	Title	Issue Date
7618215	Method and system for cleaning a soil containing contaminants A method for cleaning a soil containing contaminants is disclosed. At least one heat-conductive pipe, is introduced in the soil which is in good working condition under negative pressure and provided with perforations. The soil is heated by thermal conduction by cir...	11/17/2009
7290959	Electrode heating with remediation agent A remediation method and system is disclosed. A plurality of conductors is installed into the subsurface to introduce electrical current to produce heat in the subsurface. One or more agents are released into the subsurface to cause or accelerate the decomposition o...	11/06/2007
7204928	Process and apparatus for the fractional distillation of crude oil A process for the fractional distillation of crude oil, which comprises the steps of: feeding a continuous current of crude oil at 310–400° C. into a turbomixer comprising a tubular cylindrical body (1) provided with a rotor (9) formed with helicall...	04/17/2007
6911570	Method for fixating sludges and soils contaminated with mercury and other heavy metals The invention relates to a method, composition and apparatus for stabilizing mercury and other heavy metals present in a particulate material such that the metals will not leach from the particulate material. The method generally involves the application of a metal ...	06/28/2005
6881009	Remediation of soil piles using central equipment Methods are provided for remediating contaminated soil. The methods may include collecting contaminated soil at a plurality of treatment sites. The contaminated soil at one or more of the plurality of treatment sites may be at least partially contained. Contaminated...	04/19/2005
6840712	Thermal remediation process A process and apparatus for removing organic and inorganic contaminants from solid media such as drill cuttings, tank bottoms or contaminated soils. The process is conducted in at least one thermal screw conveyor which provides two or more separate temperature zones...	01/11/2005
6805518	Method of in situ soil remediation for volatile organic contaminants A preferred method of soil remediation in which contaminant organic compounds are removed from soil by a sequential process in which the bulk of natural and contaminant organic compounds are stripped from the soil by hot air injection, followed by applying a strong ...	10/19/2004
6767163	Plasma process and appropriate equipment for the removal of hydrocarbons contained in the sludge from petroleum storage tanks and/or the treatment of residues containing hydrocarbons A plasma process and equipment for eliminating toxic or hazardous organic compounds from different materials, particularly petroleum and oil contaminated soils. The process and equipment can also be used to remove the hydrocarbons contained in the sludge formed at t...	07/27/2004
6551026	Method of remediating heavy metal-containing soil A method of remediating soil that contains heavy metals comprises the steps of removing and sieving heavy metal-containing soil to separate stones and gravel, and treating the sieved soil, in a thin layer kept in a strongly turbulent state, with a solutio...	04/22/2003
6474908	Chemical oxidation of volatile organic compounds Volatile organic compounds are removed from contaminated soil by introducing one or both of a water soluble peroxygen compound, such as a persulfate, and a permanganate into the soil, either in situ or ex situ, in amounts and under conditions wherein both...	11/05/2002
6459012	Method for treating organohalogen compound-containing soil or ash A process for treating an organohalogen compound-containing soil or ash of the present invention, comprises: mixing the organohalogen compound-containing soil or ash with an organohalogen compound-decomposition catalyst composed of a composite catalyst co...	10/01/2002
6416251	Process for the stabilization of soluble chromium contaminated solid by down draft sintering The invention relates to a process for the stabilisation of soluble chromium in contaminated solids by down draft sintering by mixing chromium contaminated solids with different proportions of CaO, MgO, Al2 O3, SiO2, SO	07/09/2002
6276871	Soil remediation method The present invention relates generally to a soil remediation method, and more particularly to a soil remediation method relying on the chemical oxidation of organic contaminants in saturated or unsaturated soil and aided by mechanical agitation of the so...	08/21/2001
5919982	Process and apparatus for the removal of aromatic amines from soil and water A process and apparatus for the removal of aromatic amines from soil and water is described. In particular, treatment trains are described in which soil washing or low temperature desorption process effect removal of contaminant, such as xylidines from so...	07/06/1999
5836718	Method and apparatus for ex situ cleaning of contaminated soil A method for ex situ cleaning of contaminated soil using a closed system of heat-conductive solid-walled pipes embedded in the contaminated soil, the pipes being in communication with the heat source that heats and circulates air throughout the system of ...	11/17/1998
5803663	Mercury-removal method A method of removing one or more mercury compounds from mercury-contaminated soil is disclosed. The method includes mixing the mercury-contaminated soil with an additive, and heating the thus produced mixture to a temperature which is below the boiling po...	09/08/1998
5804434	Process for removing solvent from soil and debris A process for removing solvent from soil and debris comprised of the steps of removing the solvent by soil vapor extraction and then washing the soil with a mixture of solvent eating bacteria, nutrients, and water is shown. The process decreases overall c...	09/08/1998
5803894	Process for preparing enviromentally stable products by the remediation of contaminated sediments and soils This invention relates to thermo-chemical remediation and decontamination of sediments and soils contaminated with organic contaminants as well as inorganic materials with subsequent beneficial reuse. Novel environmentally stable products of commercial va...	09/08/1998
5769777	Method for absorbing organic pollutants The invention concerns a method for absorbing organic, ecologically stressed pollutants (1) such as oil, tar and phenols on grounds (12), rubble or solid disposal site surfaces which are floating on or in waters of a disposal site with liquid and/or sludg...	06/23/1998
5753109	Apparatus and method for phosphate-accelerated bioremediation An apparatus and method for supplying a vapor-phase nutrient to contaminated soil for in situ bioremediation. The apparatus includes a housing adapted for containing a quantity of the liquid nutrient, a conduit in communication with the interior of the ho...	05/19/1998
5720578	Oxidative cleaning process of contaminated slurries or slurried earth In the process for treating contaminated mud or suspended earth, the mud or the suspended earth in concentrations of 3% to 25% dry matter is wet-oxidized by addition of pure oxygen or an oxygen-containing gas at a temperature of 120° C. to 220° C., unde...	02/24/1998
5562589	Stabilizing inorganic substrates A process for stabilizing a substantially inorganic substrate and inorganic substrates admixed with organic chemicals comprises treating the substrate with sulfur at an elevated temperature thus converting the substrate into a solid, inert product which r...	10/08/1996
5489741	Treatment and stabilization of hazardous waste A composition and process for the safe removal and treatment of hazardous waste material is described. This composition is a mixture of grout like cement containing the hazardous waste and a minor amount of an alkali metal silicate and a gelling agent. Th...	02/06/1996
5489738	Enhanced volatilization of polychlorinated biphenyl compounds This invention provides a method or process for separating an organic chlorinated contaminant such as polychlorobiphenyl from an inert porous material which comprises admixing the material with an effective amount of a volatilizable organic liquid in whic...	02/06/1996
5416248	Method of removing volatile chlorinated hydrocarbon base materials A method of removing volatile chlorinated hydrocarbon base materials contained in soil is provided wherein an inorganic compound that is an oxide of an alkali metal or an alkaline earth metal or a sulfate of an alkaline earth metal, which undergoes an exo...	05/16/1995
5340406	Method for removing contaminants from soil A method and apparatus for removing contaminants from soil by a closed-loop, counter-current extraction process is disclosed. The process involves a preliminary water removal step, followed by a counter-current leaching of the contaminants from the soil b...	08/23/1994
5259962	Method and apparatus for decontamination of soils and other particulate materials Solid materials, such as soils, containing contaminants are treated with hydroxyl radicals, in the gas phase. The hydroxyl radicals are created by hydrogen peroxide or ozone, preferably a combination of hydrogen peroxide, ozone and UV light. A decontamina...	11/09/1993
5252138	Water/surfactant process for recovering hydrocarbons from soil in the absence of emulsifying the oil A water/surfactant process for removing oil from a soil that has been contaminated by an oil spill. The surfactant is carefully selected from a group consisting of linear alcohols having eight to fifteen carbon atoms and two to eight ethylene oxide units ...	10/12/1993
5245120	Process for treating metal-contaminated materials A process for treating wastes contaminated by toxic metals and/or organic materials is disclosed. The process involves heating the metal-contaminated wastes to a temperature sufficient to volatilize the metals. This temperature is also high enough to dest...	09/14/1993
5188041	Apparatus and method for low temperature thermal stripping of volatile organic compounds from soil and waste materials with non-oxidative co-current gases A method and apparatus for removing volatile organic contaminants from soil and waste materials including transporting and placing the contaminated material into a hopper, the hopper being substantially sealed from the atmosphere to prevent fugitive emiss...	02/23/1993
5152844	Degradation of polychlorinated biphenyls Polychlorinated biphenyls are chemically degraded by contact with a Lewis acid catalyst in a nonaqueous liquid medium, in the presence of a cation which combines the chlorines on the PCBs to form a solid chloride of the cation which will precipitate out f...	10/06/1992
5149444	Process for the decontamination of soils, sediments, and sludges A method for the decontamination of a soil, sediment, or sludge containing toxic halogenated organic compound and containing water comprising the steps of mixing said soil, sediment, or sludge with a reagent capable of reacting with said halogenated compo...	09/22/1992
5051030	Chemical detoxification process for treatment of soils contaminated with halogenated organic compounds A method of detoxifying a component of contaminated soil containing a halogenated organic compound including contacting the contaminated soil with atomic hydrogen in an amount effective to react with halogen contained in the compound and substituting the ...	09/24/1991
4424081	Reconditioning soils contaminated by crude oils or other refined petroleum products A method for reconditioning soils contaminated with crude oils or other refined petroleum products. The system comprises a mixer input device for mixing and heating the soils with a liquid and providing a heated blended slurry. A sparger kiln agitates the...	01/03/1984

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Class 405/128.8 - With heat