Hydraulic and earth engineering – Soil remediation – In situ contaminant removal or stabilization
Patent
1998-05-01
2000-08-15
Taylor, Dennis L.
Hydraulic and earth engineering
Soil remediation
In situ contaminant removal or stabilization
405263, 588249, B09B 100
Patent
active
061026212
ABSTRACT:
The invention is a method and a composition of a mixture for degradation and immobilization of contaminants in soil and groundwater. The oxidative particle mixture and method includes providing a material having a minimal volume of free water, mixing at least one inorganic oxidative chemical in a granular form with a carrier fluid containing a fine grained inorganic hydrophilic compound and injecting the resulting mixture into the subsurface. The granular form of the inorganic oxidative chemical dissolves within the areas of injection, and the oxidative ions move by diffusion and/or advection, therefore extending the treatment zone over a wider area than the injection area. The organic contaminants in the soil and groundwater are degraded by the oxidative ions, which form solid byproducts that can sorb significant amounts of inorganic contaminants, metals, and radionuclides for in situ treatment and immobilization of contaminants. The method and composition of the oxidative particle mixture for long-term treatment and immobilization of contaminants in soil and groundwater provides for a reduction in toxicity of contaminants in a subsurface area of contamination without the need for continued injection of treatment material, or for movement of the contaminants, or without the need for continuous pumping of groundwater through the treatment zone, or removal of groundwater from the subsurface area of contamination.
REFERENCES:
patent: 3708206 (1973-01-01), Hard et al.
patent: 3956900 (1976-05-01), Klinkner et al.
patent: 4043830 (1977-08-01), Suzuki
patent: 4844807 (1989-07-01), Manchak
patent: 5221159 (1993-06-01), Billings et al.
patent: 5266213 (1993-11-01), Gillham
patent: 5430235 (1995-07-01), Hooykaas et al.
patent: 5447639 (1995-09-01), Sivavec
patent: 5502268 (1996-03-01), Cote et al.
patent: 5616253 (1997-04-01), Fernando et al.
patent: 5641020 (1997-06-01), Cherry et al.
patent: 5690173 (1997-11-01), Abdul et al.
patent: 5733067 (1998-03-01), Hunt et al.
Murdoch Lawrence C.
Siegrist Robert L.
Lockheed Martin Energy Research Corporation
Taylor Dennis L.
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