INVESTIGATION OF COBALT SORPTION ON POLYETHYLENE USING AN IN SITU RADIOACTIVE TRACER METHOD

Experiments on sorption of cobalt onto polyethylene foil from buffered borate solutions are reported in this paper. Sorption isotherms and sorption kinetics of cobalt as a function of pH and the effect of borate species on cobalt sorption were investigated. The results show that the extent of cobalt sorption is lower in borate buffer than in Na ClO4 solution. It is found that the adsorption isotherms obtained are dependent on the pH of the solution. Possible reasons of the influence of pH on the sorption isotherms are discussed.