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PERMEABLE REACTIVE BARRIER TECHNOLOGIES FOR CONTAMINANT REMEDIATION
Citation:
Powell, R. M., R W. Puls*, D. W. Blowes, J. L. Vogan, R. W. Gillham, P. D. Powell, D. Schultz, R. Landis, AND T. Sivavec. PERMEABLE REACTIVE BARRIER TECHNOLOGIES FOR CONTAMINANT REMEDIATION. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/R-98/125 (NTIS 99-105702), 1998.
Impact/Purpose:
information
Description:
Environmental scientists are generally familiar with the concept of barriers for restricting the movement of contaminant plumes in ground water. Such barriers are typically constructed of highly impermeable emplacements of materials such as grouts, slurries, or sheet pilings to form a subsurface "wall". The goal of such installations is to eliminate the possibility that a contaminant plume can move toward and endanger sensitive receptors such as drinking water wells or discharge into surface waters. Permeable reactive barrier walls reverse this concept of subsurface barriers. Rather than serving to constrain plume migration, permeable reactive barriers (PRB's) are designed as preferential conduits for the contaminated ground water flow. A permeable reactive subsurface barrier is an emplacement of reactive materials where a contaminant plume must move through it as it flows, typically under natural gradient, and treated water exits on the other side. The purpose of this document is to provide the most recent information on PRB technologies in a format that is useful to stakeholders such as implementors, state and federal regulators, Native American tribes, consultors, contractors, and all other interested parties. It includes information on treatable contaminants, design, feasibility studies, construction options, site characterization needs and monitoring, as well as summaries of several of several current installations. It is hoped that this will prove to be a very valuable technical resource for all parties with interest in the implementation of this innovative, passive, remedial technology.
URLs/Downloads:
PERMEABLE REACTIVE BARRIER TECHNOLOGIES FOR CONTAMINANT REMEDIATIONPROTOCOL.PDF (PDF, NA pp, 1 KB, about PDF)