Studies of competitive Cu2plus, Co2plus and Cr3plus 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.