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8109047 |
System for recovering hydrocarbons from water-containing hydrocarbonaceous material using a constructed infrastructure
A constructed permeability control infrastructure can include a permeability control impoundment defining a substantially encapsulated volume. A comminuted water-containing hydrocarbonaceous...
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7862705 |
Methods of recovering hydrocarbons from hydrocarbonaceous material using a constructed infrastructure and associated systems
A method of recovering hydrocarbons from hydrocarbonaceous materials can include forming a constructed permeability control infrastructure. This constructed infrastructure defines a substantially...
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7004678 |
Soil remediation with heated soil
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...
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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...
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6485232 |
Low cost, self regulating heater for use in an in situ thermal desorption soil remediation system
An in situ thermal desorption soil remediation system may be used to remove contamination from soil. Heat may be applied to the soil by metallic strip heaters that have large cross sectional areas...
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6413016 |
Methods of extracting liquid hydrocardon contaminants from underground zones
Methods of extracting liquid hydrocarbon contaminants from underground zones are provided. The methods are basically comprised of the steps of introducing a hot purge gas into an underground zone...
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5975799 |
Electro-osmotic infusion for joule heating soil remediation techniques
Electro-osmotic infusion of ground water or chemically tailored electrolyte is used to enhance, maintain, or recondition electrical conductivity for the joule heating remediation technique. Induced...
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5615974 |
Process for soil decontamination by oxidation and vacuum extraction
A process for in situ treatment of a contaminated subsurface zone of the earth containing volatile liquid or semisolid organic contaminants, semivolatile liquid or semisolid organic contaminants...
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5449251 |
Dynamic underground stripping: steam and electric heating for in situ decontamination of soils and groundwater
A dynamic underground stripping process removes localized underground volatile organic compounds from heterogeneous soils and rock in a relatively short time. This method uses steam injection and...
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5348422 |
Methods for the formation and operation of an in situ process reactor
A hazardous waste site remediation process for decontamination of petrochemical and other toxic waste containing sites comprises in situ conversion of the site to a self contained process reactor...
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5325795 |
Mobile material decontamination apparatus
A technique for decontaminating material, including disposing a grid network of perforated pipes on a base, and covering the same with contaminated soil. A barrier layer is laid on the contaminated...
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5279740 |
Ground contamination remediation process
Disclosed is a process for improved removal of contaminants including oily wastes and other organic hydrocarbonaceous materials from ground waters and areas adjacent to or in the vicinity of ground...
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5249888 |
Enhanced gradient soil and groundwater remediation method
An enhanced pressure gradient remediation system (10) for decontaminating a contaminated volume of soil incorporates at least one extraction well (40) operated independently or in conjunction with...
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5221159 |
Subsurface contaminant remediation, biodegradation and extraction methods and apparatuses
Methods and apparatuses for removing contaminants from soil and an associated subsurface groundwater aquifer. An injection well(s) is drilled through the vadose zone to a depth below the water...
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5193934 |
In-situ thermal desorption of contaminated surface soil
An in-situ thermal desorption system utilizes perforated or slotted pipe buried in the soil below the depth of contamination in the soil. The surface of the soil is covered with a layer of...
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5181796 |
Method for in situ contaminant extraction from soil
Disclosed is a method and apparatus for the in situ removal of contaminants from contaminated soil wherein exhaust gas from an internal combustion engine is injected at an elevated temperature into...
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5076727 |
In situ decontamination of spills and landfills by focussed microwave/radio frequency heating and a closed-loop vapor flushing and vacuum recovery system
Moist, warm, clean air from a vapor treatment system is injected into wells which are screened only at the contaminated depth forcing vapor flow only through the contaminated region. Intermediate...
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5018576 |
Process for in situ decontamination of subsurface soil and groundwater
A method is provided for in situ decontamination of contaminated subsurface area by injection of steam into injection wells and withdrawing liquids and vapors from extraction wells under...
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4982788 |
Apparatus and method for removing volatile contaminants from the ground
Hazardous volatile contaminants are removed from the ground by circulating air between two substantially parallel wells and by removing the vapors of the organic compound from the circulated air...
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4842448 |
Method of removing contaminants from contaminated soil in situ
A method of removing contaminants from a contaminated soil area in situ comprises the steps of placing a barrier in engagement with the exposed surface of the contaminated soil area, sealing the...
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