Kinetics of Removal of Chromium From Wastewater Using Chitosan-Based Binary Polymer Blends

Abstract

Chitosan and polyethylene glycol (PEG) were crosslinked with glutaraldehyde to form a blend in the ratio 1:1. The synthesized blend was characterized by FTIR, XRD, TGA/DTA, and DSC to confirm grafting and crosslinking reactions, and scanning electron microscopy to understand the surface morphology. The prepared blend was employed for the removal of metals from dyeing industry effluent. The optimum conditions arrived at for the removal of chromium from dyeing industrial effluent are as follows: pH 5, contact time 4 h, adsorbate dosage is 3 g/L. Kinetic studies and adsorption studies were also carried out to evaluate the adsorption parameters.