Activated and Nonactivated Date Pits Adsorbents for the Removal of Copper(II) and Cadmium(II) from Aqueous Solutions

Figure 4

(a) Effect of the contact time on adsorption of Cu(II) by selected adsorbent at pH=5.8±0.5, adsorbent dosage (0.5 g RDP and 0.2 g ADP), initial concentration 50 mg/L. (b) Effect of the contact time on adsorption of Cd(II) by selected adsorbent at pH=5.8±0.5, adsorbent dosage (0.5 g RDP and 0.2 g ADP), initial concentration 50 mg/L.

(a)

(b)