Adsorption Phenomenon of Arundinaria alpina Stem-Based Activated Carbon for the Removal of Lead from Aqueous Solution

Figure 6

Langmuir (a) and Freundlich (b) adsorption isotherm for adsorption of Pb (II) on BMSAC (pH: 5, adsorbent dose: 2 g and contact time 120 mins).

(a)

(b)