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

被引：85

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

页码：144 / 152

页数：9

共 50 条

[1] Synthesis, characterization, and flocculation characteristics of polyacrylamide-grafted glycogen [J].

Adhikary, P. ;

Tiwari, K. N. ;

Singh, R. P. .

JOURNAL OF APPLIED POLYMER SCIENCE, 2007, 103 (02) :773-778

[2] Swelling of cellulose derivative (HPMC) matrix systems for drug delivery [J].

Barba, Anna Angela ;

d'Amore, Matteo ;

Chirico, Serafina ;

Lamberti, Gaetano ;

Titomanlio, Giuseppe .

CARBOHYDRATE POLYMERS, 2009, 78 (03) :469-474

[3] KINETIC-MODELS OF SUSPENSION FLOCCULATION BY POLYMERS [J].

BERLIN, AA ;

KISLENKO, VN .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1995, 104 (01) :67-72

[4] Characterisation of carboxymethyl cellulose and polyacrylamide graft copolymer [J].

Biswal, DR ;

Singh, RP .

CARBOHYDRATE POLYMERS, 2004, 57 (04) :379-387

[5] ,Effect of shearing forces and flocculant overdose on filler flocculation mechanisms and floc properties [J].

Blanco, A ;

Negro, C ;

Fuente, E ;

Tijero, J .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2005, 44 (24) :9105-9112

[6] A model of flocculation [J].

Brostow, Witold ;

Pal, Sagar ;

Singh, Ram P. .

MATERIALS LETTERS, 2007, 61 (22) :4381-4384

[7] A kinetic investigation of cationic starch adsorption and flocculation in kaolin suspension [J].

Chen, Yanxiao ;

Liu, Shaoying ;

Wang, Gongying .

CHEMICAL ENGINEERING JOURNAL, 2007, 133 (1-3) :325-333

[8] A kinetic investigation of the flocculation of alumina with polyacrylic acid [J].

Das, KK ;

Somasundaran, P .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2004, 271 (01) :102-109

[9] Ultra-low dosage flocculation of alumina using polyacrylic acid [J].

Das, KK ;

Somasundaran, P .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2001, 182 (1-3) :25-33

[10] Synthesis and characterization of a novel polymeric hydrogel based on hydroxypropyl methyl cellulose grafted with polyacrylamide [J].

Das, R. ;

Panda, A. B. ;

Pal, Sagar .

CELLULOSE, 2012, 19 (03) :933-945

← 1 2 3 4 5 →