Patent
Remediation apparatus and method for organic contamination in soil and groundwater
TLDR
In this article, a method and apparatus for in-situ treatment of soil and groundwater contaminated with organic pollutants is presented, where the authors define the nature and extent of the contamination, determine the hydrology and geology of the contaminated area, determining the volume and concentration of a reactive solution required to effect treatment of contaminated area; injecting the reactive solution into one or more injectors that are inserted into the ground, sealed and positioned so as to assure flow of the reactive solutions through the contaminated areas, allowing the reactive mixture to flow through the area thereby reacting chemically with the contaminantsAbstract:
The present invention provides a method and apparatus for in-situ treatment of soil and groundwater contaminated with organic pollutants. The process involves defining the nature and extent of the contamination; determining the hydrology and geology of the contaminated area; determining the volume and concentration of a reactive solution required to effect treatment of the contaminated area; injecting the reactive solution into one or more injectors that are inserted into the ground, sealed and positioned so as to assure flow of the reactive solution through the contaminated area; allowing the reactive solution to flow through the contaminated area thereby reacting chemically with the contaminants contained within the contaminated area; and determining when the treatment is complete by monitoring by-products of the chemical reaction. Preferably, the reactive solution is an aqueous solution of hydrogen peroxide and metallic salts.read more
Citations
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References
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In-situ remediation system and method for contaminated groundwater
TL;DR: In this article, a system for removing volatile contaminants from a subsurface plume of contamination comprising two sets of wells, a well for injecting a fluid into a saturated zone on one side of the plume and an extracting well for collecting the fluid together with volatilized contaminants from the plumes on the other side, is described.
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Method and system for remediation of groundwater contamination
TL;DR: In this article, a method for remediating a hydrocarbon-contaminated region of a subterranean body of groundwater to destroy or reduce the initial concentration levels of hydrocarbon contaminants is presented.
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In-situ soil treatment process
TL;DR: In this paper, a method of 'in situ' collection and treatment of floating, sinking and dissolved contaminants in a soil environment which involves installation of wick-like drains in at least a portion of the waste site on the downgradient side of in-ground water flow is described.
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Method and apparatus for subsurface bioremediation
TL;DR: In this article, a system and method for establishing, maintaining or enhancing microorganisms utilized to remediate contaminated soil or groundwater which includes of a direct push rod or cylinder equipped with a fluid or gas delivery system.
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System for sparging ground water contaminants
TL;DR: In this paper, the authors proposed a method for sparging ground water by developing density driven convection and promoting the physical removal and biodegradation of contaminants, which includes providing a well casing having two fluid permeable sidewalls separated by a fluid impermeable sidewall, and inserting the well casing into a generally vertical borehole.