Adsorption of Arsenic, Lead, Cadmium, and Chromium Ions from Aqueous Solution Using a Protonated Chabazite: Preparation, Characterization, and Removal Mechanism

Figure 8

Isotherms for the adsorption of (a) As(V), (b) Pb(II), (c) Cd(II), and (d) Cr(III) on CH-N and CH-MS zeolites at pH 4 and their correlation with Liu model.

(a)

(b)

(c)

(d)