Transport and distribution of arsenic, chromium, and copper in soil associated with CCA-treated wood

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Journal Title, Volume, Page: 
237th ACS National Meeting, Division of Geochemistry, March 22-26,Salt Lake City, Utah, USA
Year of Publication: 
2009
Authors: 
Ligang Hu
Department of chemistry & biochemsitry, florida international university, 11200 SW 8th St, miami, FL 33199
Y. Cai
Dept. of Chemistry and Southeast Environmental Res, Florida International University, University Park, Miami, FL 33199
Cristina Diez-Rivas
Department of chemistry & biochemsitry, florida international university, 11200 SW 8th St, miami, FL 33199
Helena Solo-Gabriele
Dept. of Civil, Arch., & Environ. Engineering, University of Miami, Coral Gables, FL 33124
Lynn Fieber
Division of Marine Biology and Fisheries, Rosenstiel School of Marine & Atmospheric Science, University of Miami, Division of Marine Biology and Fisheries, Rosenstiel School of Marine & Atmospheric Science, University of Miami, miami, FL 33149
ABDD Fattah R. Hasan
Dept. of Civil, Arch., & Environ. Engineering, University of Miami, Coral Gables, FL 33124
Current Affiliation: 
Department of Civil Engineering, An-Najah National University, P.O. Box 7, Nablus, Palestine.
Preferred Abstract (Original): 
Considerable progress on the transport of As, Cr, and Cu in soil associated with CCA-treated wood has been made in recent years. However, the interactions among these elements during transport through soil and effects on their toxicity are not well understood. A laboratory column experiment was conducted to investigate the transport and distribution of these elements in soil. Distinct migrating behaviors though the soil were observed. Soil properties and bacterial activities dramatically affected their transport, transformation, and distribution of these elements in soil and these effects varied with elements. Enhanced adsorption of Cu on soil in the presence of As in soil was observed. The distribution of Cr and As in soil were strongly correlated. It is proposed that surface charge altering by the present of As affects the Cu adsorption and co-precipitation of Cr and As on soil surface is involved in the distribution of Cr and As.