Fig. 5

The effect of composite dose on adsorption capacity. The change of adsorption capacity in removal of the Pb2+ vs amount of adsorbents in solution for Fe2+-PPC is depicted in red and for Fe3+-PPC is depicted in blue
The effect of composite dose on adsorption capacity. The change of adsorption capacity in removal of the Pb2+ vs amount of adsorbents in solution for Fe2+-PPC is depicted in red and for Fe3+-PPC is depicted in blue