Adsorption Removal of Anionic Dyes in Waste Water from Dyeing by Chitosan.

Abstract

The applicability of chitosan to the adsorption treatment of anionic dyes in waste water from dyeing was evaluated. Factors affecting adsorption were investigated. It was revealed that the size of dyes resulting from molecular weight or aggregation affected the adsorption of dyes on chitosan. In addition the effects of temperature and the addition of sodium chloride for decolorization of waste water are discussed