The influence of pH on solubility of copper in soils contaminated by copper industry in Legnica
Journal Title: Civil and Environmental Engineering Reports - Year 2013, Vol 1, Issue 11
Abstract
The aim of the study was to determine the influence of changes in pH on the solubility of copper in soils contaminated by copper industry. Soil samples were collected from the surface soil horizon (0-30 cm) at two sites situated in the vicinity of Legnica Copper Smelter. Soil material contained various concentrations of total Cu. Soil samples were treated with various doses of HCl and NaOH, in the presence of CaCl2 as a background electrolyte. Copper concentrations and pH values were determined in the extracts obtained from the experiment. Buffering capacity curves were prepared on the basis of those results. The changes in pH affected the solubility of copper in contaminated soils. Addition of HCl resulted in increased copper solubility, particularly strong at the doses higher than 0,2 M HCl kg-1.<br/><br/>
Authors and Affiliations
M. Cuske, L. Gersztyn, A. Karczewska
Keywords
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