Figure 7

The quantitative contribution of Qce, Qcom, Qpre and Qoth to the adsorption of Cd2+ and Pb2+ on biochar: (a and e for CB350, b and f for CB650, c and g for CCB350, and d and h for CCB650, respectively).

The quantitative contribution of Qce, Qcom, Qpre and Qoth to the adsorption of Cd2+ and Pb2+ on biochar: (a and e for CB350, b and f for CB650, c and g for CCB350, and d and h for CCB650, respectively).