A Comprehensive Review on Use of Poly Electrolyte Complex PEC as an Adsorbent for the Removal of Heavy Metals From Aqueous Solution

Abstract

Water pollution has become a 21st century problem because of industrialization. Adsorption is one of the most cost effective ways of removing noxious heavy metals from the solvent phase. This paper presents a detailed information and review on the adsorption of noxious heavy metal ions from wastewater effluents using polyelectrolyte complex PEC formed by Natural-Natural , natural-synthetic, synthetic-synthetic interaction of polyelectrolyte as adsorbents. In addition to this, the mode of preparation, efficiency of developed PEC for adsorption of the heavy metals ions is discussed in detail along with the comparison of their maximum adsorption capacity in tabular form. The results of searches show that PECs, which have low or almost no economic value because most are derived from waste, can be used as adsorbents for the adsorption of heavy metal ions from the solution