Effect of synthetic cationic surfactants on dewaterability and settleability of activated sludge

被引：11

作者：

Fu, Jiajun ^{[1
]}

Jiang, Bo ^{[2
]}

Cai, Weimin ^{[2
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Chem Engn, Nanjing 210094, Peoples R China

[2] Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai 200240, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION | 2009年 / 37卷 / 01期

关键词：

dimeric cationic surfactants; dewaterability; settleability; adsorbability; EPS; extracellular polymeric substances; DEWATERING CHARACTERISTICS; CHEMICAL SLUDGE; ALUM SLUDGE; POLYMER; WATER; COAL;

D O I：

10.1504/IJEP.2009.024475

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Dimeric cationic surfactants with different lengths of carbon chains were synthesised, and then these surfactants were added to the activated sludge samples to evaluate the dewaterability and settleability. The adsorbability of cationic surfactants on activated sludge was also studied. By comparing the dewatering performances of different cationic surfactants, the effect mechanisms of cationic surfactant are elucidated. The dimeric cationic surfactants can not significantly improve the filtration performance of activated sludge, however, they can apparently decrease the moisture content in filtration cake and bound water content.

引用

页码：113 / 131

页数：19

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