Fig. 8 | Scientific Reports

Fig. 8

From: Calcium modified mesoporous silica from marble for the removal of cadmium, lead, chromium, iron, and manganese from Siwa Oasis groundwater

Fig. 8

Show the breakthrough curves for the adsorption of studied metals by the Ca-MCM bed (Cd (II) (A), Fe (II) (B), Pb (II) (C), Cr (VI) (D), and Mn (II) (E)), fitting of the adsorption behaviors with Thomas model (Cd (II) (F), Fe (II) (G), Pb (II) (H), Cr (VI) (I), and Mn (II) (J)), fitting of the adsorption behaviors with Adams-Bohart model (Cd (II) (K), Fe (II) (L), Pb (II) (M), Cr (VI) (N), and Mn (II) (O)), and fitting of the adsorption behaviors with Yoon-Nelson Model (Cd (II) (P), Fe (II) (Q), Pb (II) (R), Cr (VI) (S), and Mn (II) (T)).

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