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Permeable Reactive Barriers for Treatment of Cr6
Citation:
LUDWIG, R. D., C. SU, AND R. T. WILKIN. Permeable Reactive Barriers for Treatment of Cr6. Presented at 4th International Contaminated Site Remediation Conference, Adelaide, AUSTRALIA, September 11 - 15, 2011.
Impact/Purpose:
Presentation for the Fourth International Contaminated Site Remediation Conference in Adelaide, Australia (September 11, 2011 - September 15, 2011)
Description:
Several options are available for treatment of hexavalent chromium (Cr(VI)) in groundwater using the permeable reactive barrier (PRB) approach. They include conventional trench-and-fill systems, chemical redox curtains, and organic carbon redox curtains. Each of these PRB systems has their advantages and disadvantages. The presentation discusses the three types of PRB systems along with case studies involving the employment of the three different systems. Selection of one system over another will ultimately depend on site-specific conditions including depth of contamination, aquifer characteristics, and proximity to sensitive receptors.