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Remediation of arsenic-contaminated soils and groundwaters

United States Patent

5,769,961
June 23, 1998
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
An in situ method for extraction of arsenic contaminants from a soil medium and remediation of the medium including contacting the medium with an extractant solution, directing the solution within and through the medium, and collecting the solution and contaminants. The method can also be used for arsenate and/or arsenite removal.
Peters; Robert W. (Naperville, IL), Frank; James R. (Glen Ellyn, IL), Feng; Xiandong (West Richland, WA)
The University of Chicago (Chicago, IL)
08/ 442,323
May 16, 1995
The United States Government has rights in this invention pursuant to Contract No. W-31-109-ENG-38 between the U.S. Department of Energy (DOE) and the University of Chicago representing Argonne National Laboratory.