Removal of Cu+2, Zn+2 and Cd+2 from Aqueous Solution by Using Ion Exchanger Derived from Sack Polypropylene Grafted with Maleic Acid and its Derivatives

Grafting of wastes polypropylene taken from sack with some active functional groups like maleic anhydride, N- phenylmaleamic acid, N( o-chloro-phenyl) maleamic acid, N( 2,6-diethyphenyl) maleamic acid and N(3-chloro-4-methylphenyl) maleamic acid were accomplished via free radical polymerization.
The grafted polymers were examined as an ion exchanger toward Cu+2, Zn+2 and Cd+2 ions from their aqueous solutions. The initial concentrations of metal ion solution, pH of the extraction medium and treatment time were studied as a factors influence the efficiency of extraction. The r esults were constructed with some isotherm models (Langmuir, Frendlich and Dubiuin-Radushkevish models). The langmuir and Dubini-Radushkevish isotherm are the more suitable models to describe the results than Frendlich model.