Figure 4

Effects of (a) the initial pH on the adsorption efficiency of Sb(III) (dosage = 400 mg/50 mL dry weight; Sb(III) concentration = 10 mg/L; temperature = 298 k; rotation speed = 150 rad/min; contact time = 240 min), (b) the GAD dose on adsorption efficiency of Sb(III) (pH = 6; Sb(III) concentration = 10 mg/L; temperature = 298 k; rotation speed = 150 rad/min; contact time = 240 min), (c) the NaCl concentration on adsorption efficiency of Sb(III) (pH = 6; dosage = 400 mg/50 mL dry weight; Sb(III) concentration = 10 mg/L; temperature = 298 k; rotation speed = 150 rad/min; contact time = 240 min).