2014•Applied Mechanics and MaterialsRequires access
Impact of Inorganic Anions on Cadmium Fractions in the Soils
Mengdi Geng, Ying Hou, Wen Gao, Hui Zhang, Zu Wei Wang
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Abstract
The impact of inorganic anions on cadmium (Cd) fractions in soils was studied by experiment. The result showed that Cd exchangeable fraction contents in soils increased with the increase in soil salinity during soil saline process; Cd exchangeable fraction contents in soils increased with the increase Cl- concentration of soil solutions, other fractions of Cd decreased with the increase of of Cl- concentration; the changes of SO42- concentration in soil solutions did not affect on Cd exchangeable fraction contents in soils, Cd carbonate fraction of increased, but the concentrations of Cd oxFe-Mn fraction and organic bound fraction decreased with the increase of SO42- concentration; Cd exchangeable fraction content reduced significantly with the increase in HCO3- concentration of soil solutions, Cd carbonate fraction increased, and the concentrations of Cd oxFe-Mn fraction and organic bound fraction changed insignificant.