Flocculation characteristics of polyacrylamide grafted hydroxypropyl methyl cellulose: An efficient biodegradable flocculant

被引：81
作者：
Das, Raghunath [1 ]
Ghorai, Soumitra [1 ]
Pal, Sagar [1 ]
机构：
[1] Indian Sch Mines, Dept Appl Chem, Polymer Chem Lab, Dhanbad 826004, Bihar, India
来源：
CHEMICAL ENGINEERING JOURNAL | 2013年 / 229卷
关键词：
Flocculation; Graft copolymer; HPMC; Kinetics; POLYMERIC FLOCCULANTS; SODIUM ALGINATE; ACID; CHITOSAN; AMYLOPECTIN; ADSORPTION; SUSPENSION; POLYSACCHARIDES; PERFORMANCE; MECHANISMS;
D O I：
10.1016/j.cej.2013.05.104
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Herein, the development and application of a high performance polymeric flocculant based on hydroxypropyl methyl cellulose grafted with polyacrylamide (HPMC-g-PAM) is reported. The flocculation characteristics were evaluated in two different synthetic effluents, namely kaolin and iron-ore suspensions using floc size measurement as well as traditional turbidity and settling velocity measurement. The flocculation kinetics demonstrate that it is in good agreement with both aggregation of particle and particle collision models. Moreover, raw mine wastewater was used for further investigation of the flocculation properties of HPMC-g-PAM. Above all, the flocculation experiments suggest that the HPMC-g-PAM based flocculants show better flocculation efficacy in compared to the base polysaccharide. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：144 / 152
页数：9
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