Abstract
Removal of heavy metals such as Cu(II), Cd(II), Zn(II), Ni(II) and Pb(II) from wastewaters in several industrial areas of Kerman, Iran, was evaluated by using ion-exchange method. Dowex 50WX8 (H+) resin was selected as suitable adsorbent for reduction of toxic elements in wastewater. The most effective sorption was observed within in pH between 4–6, fow rate of 4 mL min−1 and amount of 200 mg resin. Sorbent capacities for Cu(II), Cd(II), Zn(II), Ni(II) and Pb(II) were 45; 50; 50; 40 and 60 mg/g respectively. The results determine that exchanger resin is extremely effective in lowering the metal content of wastewaters.
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