AN OVERVIEW ON THE SYNTHESIS OF PHOSPHORYLATED CHITOSAN DERIVATIVES FOR THE ADSORPTION OF EMERGING CONTAMINANTS IN WATER

Safe water for human consumption and for aquatic life is of paramount importance. The emergence of new kinds of contaminants like surfactants, pharmaceutical drugs, hormones, foods and additives, laundry detergents, etc., are posing new and serious challenges to the conventional primary and secondary waste water treatment, because of the inability to remove or degrade these toxic pollutants efficiently and hence, the need for cost effective tertiary treatment method. Adsorption is a promising method worldwide for the removal of emerging contaminants, since it is highly-efficient and has a simple operating system. This review seeks to investigate the suitable preparation methods of soluble phosphorylated chitosan derivatives as efficient adsorbent for effective removal of emerging contaminants in water. Hence, the goal of this study, is to review some synthesis of the phosphates of chitosan under various chemical conditions to produce soluble chitosan derivatives which can be effectively used for the removal of emerging contaminants in water by adsorption technique.