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THE MEASUREMENT AND USE OF CONTAMINANT FLUX FOR PERFORMANCE ASSESSMENT OF DNAPL REMEDIATION
Citation:
BROOKS, M. AND A. L. WOOD. THE MEASUREMENT AND USE OF CONTAMINANT FLUX FOR PERFORMANCE ASSESSMENT OF DNAPL REMEDIATION. ISBN13: 978084123969, Chapter 11, C. J. Clark, A. S. Lindner (ed.), Remediation of Hazardous Waste in the Subsurface, Bridging Flask and Field (ACS Symposium Series 940). American Chemical Society, Washington, DC, (940):201-220, (2006).
Impact/Purpose:
Complete a book chapter
Description:
A review is presented of both mass flux as a DNAPL remedial performance metric and reduction in mass flux as a remedial performance objective at one or more control planes down gradient of DNAPL source areas. The use of mass flux to assess remedial performance has been proposed due primarily to the limitation of current remedial techniques to completely eliminate DNAPL from source zone areas. Four techniques are discussed to measure mass flux: the traditional method, integral pumping tests, passive flux meters, and horizontal flow treatment wells. Several different modeling approaches have been used to investigate changes in mass flux due to remedial activities. In general, these models indicate that three aspects of any given DNAPL-contaminated site are important to assessing the benefits of DNAPL remediation in terms of the flux response: the heterogeneity of the flow field, the heterogeneity of the DNAPL distribution, and the correlation between the two.
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THE MEASUREMENT AND USE OF CONTAMINANT FLUX FOR PERFORMANCE ASSESSMENT OF DNAPL REMEDIATION