Extracellular polymeric substances in fouling layer

被引：33

作者：

Chen, Ming-Yuan

Lee, Duu-Jong ^{[1
]}

Tay, J. H.

机构：

[1] Natl Taiwan Univ, Dept Chem Engn, Taipei 106, Taiwan

[2] Nanyang Technol Univ, Sch Civil & Environm Engn, Div Environm & Water Resources Engn, Singapore, Singapore

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2006年 / 41卷 / 07期

关键词：

fouling layer; extracellular polymeric substances; protein; polysaccharide; CLSM;

D O I：

10.1080/01496390600683597

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Membrane biofouling via microbial products limits the feasibility of utilizing membrane bioreactor (MBR) for treating wastewater. Fouling layer would be built up when activated sludge was filtered with a mixed cellulose ester membrane. This study probed the three-dimensional distributions of protein, alpha-polysaccharide, and beta-polysaccharide in fouling layer using fluorescently labeled lectins and fluorescein isothiocyanate (FITC) as staining agents in combination with confocal laser scanning microscopy (CLSM). These extracellular polymeric substances (EPS) distributed heterogeneously in the fouling layer, with alpha-polysaccharide being concentrated close to the membrane surface. The flow pattern yielded in the fouling layer determines the filtration resistance of biofouling.

引用

页码：1467 / 1474

页数：8

共 13 条

[1] Fouling characterisation in membrane bioreactors [J].