Specific Surface Area Enhancement of Waste Tire-Based Activated Carbon by Demineralization Technique and Adsorption of Methylene Blue

Figure 6

The effect of initial MB concentration at constant pH of 2, adsorbent dose of 0.2 g, contact time of 30 min, the temperature of 20°C, and 400 rpm stirrer rotation (a); the effect of DMWTAC amount at constant pH of 2, initial concentration of 10 mg/L, the contact time of 30 min, the temperature of 20°C, and 400 rpm stirrer rotation (b); the effect of contact time at constant pH of 2, adsorbent dose of 0.2 g, initial concentration of 10 mg/L, the temperature of 20°C, and 400 rpm stirrer rotation (c); the effect of variation of pH at a constant initial concentration of 10 mg/L, adsorbent dose of 0.2 g, the contact time of 30 min, the temperature of 20°C, and 400 rpm stirrer rotation (d) on the % reduction of MB and MBN.

(a)

(b)

(c)

(d)