UV-Initiated Polymerization of Hydrophobically Associating Cationic Polyacrylamide Modified by a Surface-Active Monomer: A Comparative Study of Synthesis, Characterization, and Sludge Dewatering Performance

被引：103

作者：

Liao, Yi ^{[1
,4
]}

Zheng, Huaili ^{[1
,2
]}

Qian, Li ^{[3
]}

Sun, Yongjun ^{[1
]}

Dai, Li ^{[1
]}

Xue, Wenwen ^{[1
]}

机构：

[1] Chongqing Univ, Key Lab Three Gorges Reservoir Reg Ecoenvironm, State Minist Educ, Chongqing 400045, Peoples R China

[2] Chongqing Univ, Natl Ctr Int Res Low Carbon & Green Bldg, Chongqing 400045, Peoples R China

[3] Chongqing Univ, Coll Chem & Chem Engn, Chongqing 400045, Peoples R China

[4] Sichuan Univ Sci & Engn, Dept Architectural Engn, Zigong 643000, Sichuan, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2014年 / 53卷 / 27期

基金：

中国国家自然科学基金;

关键词：

CHITOSAN-GRAFT-POLYACRYLAMIDE; FERRIC SULFATE PAFS; DISPERSION POLYMERIZATION; FLOCCULATION PERFORMANCE; SOLUTION BEHAVIOR; WATER; ACRYLAMIDE; POLYELECTROLYTES; COPOLYMERIZATION; MICROSTRUCTURE;

D O I：

10.1021/ie5016987

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Two cationic polyacrylamides, PAA and PAD, were synthesized for sludge dewatering. The advanced instruments such as MAR, FTIR, and SEM were used to characterize the two copolymers. Their hydrophobic association properties in water were investigated by viscosimetry as well as the dewatering performance studied by the sludge dewatering experiment. The results showed that the optimum conditions for preparation of PAA were that the initiator concentration, urea concentration, molar ratio of AODBAC to AM, and irradiation time were 0.3 parts per thousand, 1.0%, 10:90, and 60 min, respectively. Also, it was found that PAA had a stronger hydrophobic interaction with a lower intrinsic viscosity and longer dissolution time as well as a better dewatering performance. Furthermore, the charge neutralization and bridging effects were found to contribute much to the sludge dewatering by PAA in which the dewatering performance was able to be enhanced further by the hydrophobic interaction.

引用

页码：11193 / 11203

页数：11

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