Figure 4

Effect of pH on removal percentage (%) of Sb(V), (A) [Initial concentration was 20 mg/L Sb(V), biochar dosage was 4 g/L, temperature was 22 °C] and effect of time on sorption capacity of Sb(V), (B) [Initial concentration 5 mg/L for BSBC, and 20 mg/L for ZrBSBC6.5, ZrBSBC12.5, Zr-FeBSBC(1:20), Zr-FeCl3BSBC (1:5), Fe-BSBC and FeCl3-BSBC Sb(V), biochar dosage was 4 g/L, temperature was 22 °C].