Removal of Pb²⁺ Ions by ZSM-5/AC Composite in a Fixed-Bed Bench Scale System

Figure 3

Effect of bed height on breakthrough curves obtained for the removal of Pb²⁺ by ZSM-5/AC (flow rate 2 mL min^-1, initial metal concentration 250 mg L^-1, pH 6, 303°C, and error bars represent the standard deviation at ).