Fig. 4

Effect of pH on the adsorption of Pb2+ (a), Cd2+ and Zn2+ by A. tumefaciens S12 and Zeta potential of A. tumefaciens S12 (b)
Effect of pH on the adsorption of Pb2+ (a), Cd2+ and Zn2+ by A. tumefaciens S12 and Zeta potential of A. tumefaciens S12 (b)