The preparation of a novel composite flocculant CMP-AlCl3 by combining carboxymethylpullulan (CMP) and aluminium chloride was achieved. The characterization of CMP were carried out by FT-IR, HPLC, and SEM. RSM was employed to determine the crucial factors and optimize the flocculation processes. Zeta potential measurement and Photometric Dispersion Analyzer was used to monitoring the zeta potential of coagulation and the extent of aggregation. The results of this thesis are as follows:
(1) CMP has a net...