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Title: Oxidative particle mixtures for groundwater treatment

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 throughmore » the treatment zone, or removal of groundwater from the subsurface area of contamination.« less

Inventors:
 [1];  [2]
  1. (Boulder, CO)
  2. (Clemson, SC)
Issue Date:
Research Org.:
LOCKHEED MARTIN ENERGY RES COR
OSTI Identifier:
873148
Patent Number(s):
6102621
Assignee:
Lockheed Martin Energy Research Corporation (Oak Ridge, TN) ORNL
DOE Contract Number:  
AC05-96OR22464
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
oxidative; particle; mixtures; groundwater; treatment; method; composition; mixture; degradation; immobilization; contaminants; soil; providing; material; minimal; volume; free; water; mixing; inorganic; chemical; granular; form; carrier; fluid; containing; fine; grained; hydrophilic; compound; injecting; resulting; subsurface; dissolves; injection; move; diffusion; advection; extending; zone; wider; organic; degraded; solid; byproducts; sorb; significant; amounts; metals; radionuclides; situ; long-term; provides; reduction; toxicity; contamination; continued; movement; continuous; pumping; removal; carrier fluid; fine grained; fluid containing; continuous pumping; treatment zone; water treatment; resulting mixture; significant amounts; organic contaminant; organic contaminants; particle mixture; oxidative particle; significant amount; form solid; fine grain; granular form; situ treatment; organic hydrophilic; groundwater treatment; hydrophilic compound; /405/588/

Citation Formats

Siegrist, Robert L., and Murdoch, Lawrence C. Oxidative particle mixtures for groundwater treatment. United States: N. p., 2000. Web.
Siegrist, Robert L., & Murdoch, Lawrence C. Oxidative particle mixtures for groundwater treatment. United States.
Siegrist, Robert L., and Murdoch, Lawrence C. Sat . "Oxidative particle mixtures for groundwater treatment". United States. https://www.osti.gov/servlets/purl/873148.
@article{osti_873148,
title = {Oxidative particle mixtures for groundwater treatment},
author = {Siegrist, Robert L. and Murdoch, Lawrence C.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {1}
}

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