||Innovative measures for subsurface chromium remediation : source zone, concentrated plume, and dilute plume /
Sabatini, D. A. ;
Knox, R. C. ;
Tucker, E. E. ;
Puls, R. W.
||Oklahoma Univ., Norman.;National Risk Management Research Lab., Ada, OK. Subsurface Protection and Remediation Div.
|| U.S. Environmental Protection Agency, National Risk Management Research Laboratory,
Chromium--Environmental aspects. ;
Soil remediation--Technological innovations. ;
Water pollution control ;
Chromium compounds ;
Ground water ;
Chemical reactivity ;
Ecological concentration ;
Environmental persistence ;
Soil treatment ;
Hexavalent chromium ;
Trivalent chromium ;
Zero-valent iron ;
Elizabeth City(North Carolina)
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||16 pages : illustrations ; 28 cm.
This environmental research brief reports on innovative measures for addressing subsurface chromium contamination. 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)).
Caption title. Shipping list no.: 98-0095-P. "September 1997." Includes bibliographical references (pages 15-16). "EPA/600-S-97-005."