The adsorption of Cu( Ⅱ) on kaolinite and montmorillonite was investigated through batch adsorption experiment. Several adsorption models were employed to describe the adsorption of Cu( Ⅱ) on the two clay minerals in single Cu( Ⅱ) and Cu( Ⅱ)-Cr( Ⅵ) binary solutions,and the impact of solution with various pH values on the adsorption of Cu( Ⅱ) on the two target mineral clays was investigated in order to explain the environmental chemical behavior of heavy metals in soil and to provide theoretical basis in rem...