Thermodynamic analysis of effects of contact angle on interfacial interactions and its implications for membrane fouling control

被引：36

作者：

Chen, Jianrong ^{[1
]}

Shen, Liguo ^{[1
]}

Zhang, Meijia ^{[1
]}

Hong, Huachang ^{[1
]}

He, Yiming ^{[2
]}

Liao, Bao-Qiang ^{[3
]}

Lin, Hongjun ^{[1
]}

机构：

[1] Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua 321004, Peoples R China

[2] Zhejiang Normal Univ, Dept Mat Phys, Jinhua 321004, Peoples R China

[3] Lakehead Univ, Dept Chem Engn, Thunder Bay, ON P7B 5E1, Canada

来源：

BIORESOURCE TECHNOLOGY | 2016年 / 201卷

基金：

中国国家自然科学基金;

关键词：

Membrane bioreactor; Membrane fouling; Hydrophilicity; Interfacial interaction; Contact angle; INTERACTION ENERGY ANALYSIS; POLYMERIC SUBSTANCES EPSS; MICROBIAL PRODUCTS SMP; DLVO INTERACTIONS; WORM REACTOR; WASTE-WATER; BIOREACTOR; SURFACE; HYDROPHOBICITY; SLUDGE;

D O I：

10.1016/j.biortech.2015.11.063

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Concept of hydrophobicity always fails to accurately assess the interfacial interaction and membrane fouling, which calls for reliable parameters for this purpose. In this study, effects of contact angle on interfacial interactions related to membrane fouling were investigated based on thermodynamic analysis. It was found that, total interaction energy between sludge foulants and membrane monotonically decreases and increases with water and glycerol contact angle, respectively, indicating that these two parameters can be reliable indicators predicting total interaction energy and membrane fouling. Membrane roughness decreases interaction strength for over 20 times, and effects of membrane roughness on membrane fouling should consider water and glycerol contact angle on membrane. It was revealed existence of a critical water and glycerol contact angle for a given membrane bioreactor. Meanwhile, diiodomethane contact angle has minor effect on the total interaction, and cannot be regarded as an effective indicator assessing interfacial interactions and membrane fouling. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：245 / 252

页数：8

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