Fig. 11

The effect of initial concentration (a) for Pb2+, (b) for Cu2+, and (c) for Cd2+ onto limestone (CaCO3) and calcined calcined limestone (CaO) adsorbents.
The effect of initial concentration (a) for Pb2+, (b) for Cu2+, and (c) for Cd2+ onto limestone (CaCO3) and calcined calcined limestone (CaO) adsorbents.