Flocculation performance of different polyacrylamide and the relation between optimal dose and critical concentration |
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| Authors: | J.W. Qian X.J. Xiang W.Y. Yang M. Wang B.Q. Zheng |
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| Affiliation: | Department of Polymer Science and Engineering, Institution of Polymer Science, Zhejiang University, Hangzhou, Zhejiang 310027, People's Republic of China |
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| Abstract: | Flocculation performance of four kinds of polyacrylamide (PAM) with different chain end group, namely, PAM, star-PAM, PGS-PAM and Al(OH)3-PAM hybrids, in Kaolin suspensions have been investigated by Spectrophotometer. It was found that their flocculation efficiency deceases in the order: PGS-PAM > Al(OH)3-PAM ≈ star-PAM > PAM. It was also found that the optimal dose (Cod) of the polymer flocculant in flocculation process is proportional to the critical concentration (C∗) of polymer flocculant in solution and to the suspension solid content (Css) in Kaolin suspensions. |
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| Keywords: | Polyacrylamide Flocculant Hybrid Polymer solution Critical concentration |
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