Effective Remediation of Lead Ions from Aqueous Solution by Chemically Carbonized Rubber Wood Sawdust: Equilibrium, Kinetics, and Thermodynamic Study

Figure 9

Langmuir isotherm (pH = 5.6, = 5–20 mg/L, dose = 0.5 g/L, contact time = 180 min, and temperature = 30°C).