Abstract
In this paper, a chemical plant of chromium salt was selected as the typical chromium slag contaminated site. The range and level of chromium in soil were tested by way of digestion and leaching in order to investigate the pollution of chromium slag. Speciation of chromium in soil was simultaneously analyzed by way of Tessier. The results showed that soil around the residue piling yard was polluted by Cr. Concentrations of Cr (VI) and total chromium in soil were both higher than the background value. Speciation analysis indicated that Cr in contaminated soil was mainly in the residual fraction. The data of investigation display chromium slag diffusion rule in horizontal direction is accord with particulate matter non-point source diffusion model.
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