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Mafic tailings are the common tailings which appear around iron and magnesium mines in China. These tailings can release heavy metals to the local environment, and can enter into soils and plants by physicochemical and biological processes. This paper concerns the release and bioavailability of Cr, Cu, Mn, Ni, and Zn in three typical mafic tailings under the action of Bacillus mucilaginosus (B. mucilaginosus...
The species of Cu, Pb, Zn, Cd and Cr in sediments of the Taihu Lake, China, have been analyzed using the sequential chemical extraction method. Variations in the chemical fractions of these metals and their geographic distributions have also been studied. For all five metals, the residual fraction is highest but the exchangeable fraction is lowest among all the fractions. Compared to other metals,...
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