Effect of Alkali Treatment of Wheat Straw on Adsorption of Cu(II) under Acidic Condition

Figure 7

Pseudo-first-order and pseudo-second-order adsorption kinetics simulation curve of Cu(II) on AWS (conditions: adsorbent dose = 5 g/L, pH = 5, temp. = °C, and stirring rate = 150 rpm).

(a)

(b)