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Hexavalent Chromium Removal from Water Using Heat Acid Activated Red Mud

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Figure

Figure 1. SEM images of RM (a) and RAM (b).
Figure 2. X-ray diffraction of RM (a) and ARM (b).
Figure 3. Effect of adsorbent dosage (a), contact time (b), pH (c) and the reaction temperature (d) on hexavalent chromium adsorption percentage
Table 3. Thermodynamics parameters of hexavalent chromium adsorption onto ARM.

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