Flocculation of both anionic and cationic dyes in aqueous solutions by the amphoteric grafting flocculant carboxymethyl chitosan-graft-polyacrylamide

A series of the amphoteric grafting flocculants, carboxymethyl chitosan-graft-polyacrylamide, has been prepared and employed for removal of both anionic and cationic dyes from aqueous solutions.