You are here:
ENVIRONMENTAL RESEARCH BRIEF: INNOVATIVE MEASURES FOR SUBSURFACE CHROMIUM REMEDIATION: SOURCE ZONE, CONCENTRATED PLUME, AND DILUTE PLUME.
Citation:
Sabatini, D. A., R. C. Knox, E. E. Tucker, AND R W. Puls*. ENVIRONMENTAL RESEARCH BRIEF: INNOVATIVE MEASURES FOR SUBSURFACE CHROMIUM REMEDIATION: SOURCE ZONE, CONCENTRATED PLUME, AND DILUTE PLUME. EPA/600/S-97/005, 1997.
Impact/Purpose:
Information.
Description:
This environmental research brief reports on innovative measures for addressing 1) the source zone soils, 2) the concentrated portion of the ground-water plume, and 3) the dilute portion of the ground-water plume. For the source zone, surfactant-enhanced chromium extraction is evaluated for expediting the removal of chromium from the source zone soils, thereby mitigating the continual feeding of the ground-water plume. For the concentrated plume, polyelectrolyte-enhanced ultrafiltration (PEUF) is evaluated as an innovative treatment process with desirable operating characteristics (less sludge production, higher quality final water, etc.). Relative to the dilute plume, the hydrogeological effectiveness of hydraulically passive, chemically reactive barrier systems is evaluated (i.e., in situ reduction of Cr(VI) to Cr(III). It is proposed that the collective use of these three innovative technologies will significantly improve the remediation of subsurface chromium contamination. Research evaluating each of these technologies is the focus of subsequent sections.