COCONUT-BASED BIOSORBENTS FOR WATER TREATMENT-A REVIEW
LAI Wei-liang;CCTEG Hangzhou Environmental Research Institute;
Biosor ption is an emerging technique for water treatment utilizing abundantly available biomaterials(especially agricultural wastes). Among several agricultural wastes studied as biosorbents for water treatment, coconut has been of great importance as various parts of this tree(e.g. coir, shell, etc.) have been extensively studied as biosorbents for the removal of diverse type of pollutants from water. Coconut-based agricultural wastes have gained wide attention as effective biosorbents due to low-cost and signi cant adsorption potential for the removal of various aquatic pollutants. In this review, an extensive list of coconut-based biosorbents has been compiled and their adsorption capacities for various aquatic pollutants as available in the literature are presented. Available abundantly, high biosorption capacity, cost-effectiveness and renewability are the important factors making these materials as economical alternatives for water treatment and waste remediation. It is evident from the literature survey that coconut-based biosorbents have shown good potential for the removal of various aquatic pollutants.