Figure 3:
Effect of initial pH on the adsorptions of (a) RR-2 and (b) RB-4. (C
0
= 100 mg/L; C
A
= 20 g/L; particle size: 355-500 µm; N= 100 rpm; T= 25
°
C, adsorbent: aluminium hydroxide sludge).
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