Studies of Competitive Cu2+, Co2+ and Cr3+ Sorption in Grey-Brown Podzolic Soils

Studies of competitive sorption were carried out using the three-component solution CuCl2, CoCl2 and CrCl3 in two grey-brown podzolic soils saturated with Ca2+ cations. In most cases in batch experiments the Freundlich equation was the best to describe the sorption process. The linear sorption equation was success-fully applied to describe Cr3+ and Cu2+ sorption in column experiments. A significant effect of Cu2+ and Cr3+ on Co2+ sorption was found in both column and batch experiments. Sorption of ions of the studied heavy metals was not equivalent to Ca2+ desorption from soil.

CONFLICT OF INTEREST

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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