Abstract:The Chinese water chestnut peel dreg was modified through epoxidation and amination to prepare a new dye sorption agent. The effects of temperature, pH and concentration on dye sorption were studied. The results showed that the absorption effect of modified products with dye waste was significant at the concentration of 100 mg/L, and absorption temperature 50 ℃ under non-alkaline environments. Under the optimum conditions, the absorption rate was about 100%. Except vat yellow G, the adsorptive capacity of the tested dyes with the concentration of 300 mg/L was about 280 mg/L. FT-IR analysis indicated that the etherification and amination reactions took place on the Chinese water chestnut. SEM analysis showed that the surface of cellulose changed a lot which indicated it was result from chemical modification.
