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The use of PRBs (permeable reactive barriers) for attenuation of cadmium and hexavalent chromium from industrial contaminated soil / Title on signature form: Use of permeable reactive barriers (PRBs) for attenuation of cadmium and hexavalent chromium from industrial contaminated soil

Permeable reactive barriers are considered among the most promising technologies for contaminated soil and groundwater remediation. Zero-valent iron (ZVI), hydroxyapatite (HA), and organic compost, with (OM) and without (OMx) dextrose/sulfate were assessed in column studies for their ability to attenuate chromium (Cr) or cadmium (Cd). PVC columns were packed with the reactive media and Cr or Cd solutions were pumped through the columns at concentrations of 5, 50 and 200 mg/l. These media were also assessed for their abilities to attenuate Cr and Cd from a contaminated soil. The order of Cr removal was: ZVI > OMx > OM > HA. The ZVI treatment maintained a removal rate of > 95% throughout the study. All treatments used for Cd removal had a removal rate of 98% across all treatments. The ZVI was the only treatment capable of retaining any of the mobile soil Cr and Cd from the contaminated soil. / Department of Natural Resources and Environmental Management

Identiferoai:union.ndltd.org:BSU/oai:cardinalscholar.bsu.edu:123456789/193795
Date January 2009
CreatorsMeza, Maria I.
ContributorsPichtel, John,|d1957-
Source SetsBall State University
Detected LanguageEnglish
Formatxi, 107 p. : digital, PDF file, ill. (some col.)
SourceCardinalScholar 1.0

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