||Ground water remediation of chromium using zero-valent iron in a permeable reactive barrier /
Puls, Robert W. ;
Powell, R. M. ;
Paul, C. J. ;
||National Risk Management Research Lab., Ada, OK. ;Powell and Associates Science Services, Las Vegas, NV. ;Waterloo Univ. (Ontario).
|| U.S. Environmental Protection Agency, Robert S. Kerr Environmental Research Center, National Risk Management Research Laboratory, Subsurface Protection and Remediation Division,
Ground water ;
Chemical reactivity ;
Water pollution control ;
Water treatment ;
Corrosion tests ;
Laboratory tests ;
Performance evaluation ;
Reaction kinetics ;
Heavy metals ;
||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
A series of laboratory experiments were performed to elucidate the chromium transformation and precipitation reactions caused by the corrosion of zero-valent iron in water-based systems. Reaction rates were determined for chromate reduction in the presence of different types of iron and in systems with iron mixed with aquifer materials. Various geochemical parameters were measured to confirm the proposed reactions. Laboratory experiments were scaled up to pilot and full-scale field demonstrations. Intensive geochemical sampling in the field tests corroborate laboratory results and successfully demonstrate the effectiveness of this innovative in situ approach to remediate chromate-contaminated ground water using a permeable reactive barrier composed of zero-valent iron.
"Book chapter in Field Testing of Innovative Subsurface Remediation Technologies. Presented at the American Chemical Society Conference, San Francisco, April 13-17, 1997." "EPA/600/A-98/108." "PB99-155088." Microfiche.