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FACTORS AFFECTING COPPER SORPTION AND MOBILITY THROUGH A AND B HORIZON SOILS FROM THE EASTERN SHORE OF VIRGINIA

Pages: 91 – 106

Hossam Altaher, Andrea Dietrich and John Novak

Abstract:

In this research the copper mobility through the A- and B-horizon of Bojac sandy loam was studied. This study included both batch and column processes. The effects of pH, total organic carbon (TOC) and humic substances were investigated. The mobility of copper was found to be higher through A-horizon soil. The pH was found to have a considerable effect on the mobility of copper and TOC. The highest mobility of copper was achieved at pH 6.24 and its mobility through both soil horizons was associated with the mobility of TOC. A study of the humic substances indicated that fulvic acids had 4 times higher sorption capacity for copper than humic acids. The association between fulvic acids and copper, coupled with the mobility of TOC and fulvic acids in the soil, accounted for transport of copper through soil columns.

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