Thermodynamic analysis of membrane fouling in a submerged membrane bioreactor and its implications

被引：90

作者：

Hong, Huachang ^{[1
]}

Peng, Wei ^{[1
]}

Zhang, Meijia ^{[1
]}

Chen, Jianrong ^{[1
]}

He, Yiming ^{[2
]}

Wang, Fangyuan ^{[1
]}

Weng, Xuexiang ^{[3
]}

Yu, Haiying ^{[1
]}

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] Zhejiang Normal Univ, Coll Chem & Life Sci, Jinhua 321004, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 146卷

基金：

中国国家自然科学基金;

关键词：

Membrane bioreactor; Membrane fouling; XDLVO theory; Energy barrier; Short-range interactions; WASTE-WATER TREATMENT; DLVO THEORY; SLUDGE; SURFACE; CAKE; MICROFILTRATION; HYDROPHOBICITY; BIOSURFACES; PERFORMANCE; ADSORPTION;

D O I：

10.1016/j.biortech.2013.07.040

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The thermodynamic interactions between membrane and sludge flocs in a submerged membrane bioreactor (MBR) were investigated. It was found that Lewis acid-base (AB) interaction predominated in the total interactions. The interaction energy composition of membrane-sludge flocs combination was quite similar to that of membrane-bovine serum albumin (BSA) combination, indicating the critical role of proteins in adhesion process. Detailed analysis revealed the existence of a repulsive energy barrier in membrane-foulants interaction. Calculation results demonstrated that small flocs possessed higher attractive interaction energy per unit mass, and therefore adhered to membrane surface more easily as compared to large flocs. Meanwhile, initial sludge adhesion would facilitate the following adhesion due to the reduced repulsive energy barrier. Membrane with high electron donor surface tension component was a favor option for membrane fouling abatement. These findings offered new insights into membrane fouling, and also provided significant implications for fouling control in MBRs. (c) 2013 Elsevier Ltd. All rights reserved.

引用

页码：7 / 14

页数：8

共 35 条

[1]

[Anonymous], 2005, Standard methods for the examination of water and waste- water

[2] Interpretation of fouling characteristics of ultrafiltration membranes during the filtration of membrane bioreactor mixed liquor [J].

Bae, TH ;

Tak, TM .

JOURNAL OF MEMBRANE SCIENCE, 2005, 264 (1-2) :151-160

[3] THE BEHAVIOR OF SUSPENSIONS AND MACROMOLECULAR SOLUTIONS IN CROSS-FLOW MICROFILTRATION [J].

BELFORT, G ;

DAVIS, RH ;

ZYDNEY, AL .

JOURNAL OF MEMBRANE SCIENCE, 1994, 96 (1-2) :1-58

[4] Assessing short-range membrane-colloid interactions using surface energetics [J].

Brant, JA ;

Childress, AE .

JOURNAL OF MEMBRANE SCIENCE, 2002, 203 (1-2) :257-273

[5] Membrane fouling mechanisms in the membrane-coupled anaerobic bioreactor [J].

Choo, KH ;

Lee, CH .

WATER RESEARCH, 1996, 30 (08) :1771-1780

[6] Adsorption and fouling characterization of Klebsiella oxytoca to microfiltration membranes [J].

Feng, Lei ;

Li, Xiufen ;

Du, Guocheng ;

Chen, Jian .

PROCESS BIOCHEMISTRY, 2009, 44 (11) :1289-1292

[7] Extraction of extracellular polymers from activated sludge using a cation exchange resin [J].

Frolund, B ;

Palmgren, R ;

Keiding, K ;

Nielsen, PH .

WATER RESEARCH, 1996, 30 (08) :1749-1758

[8] Influence of elevated pH shocks on the performance of a submerged anaerobic membrane bioreactor [J].

Gao, W. J. Jane ;

Lin, H. J. ;

Leung, K. T. ;

Liao, B. Q. .

PROCESS BIOCHEMISTRY, 2010, 45 (08) :1279-1287

[9] Simultaneous removal of organic matter and nitrogen compounds by combining a membrane bioreactor and a membrane biofilm reactor [J].

Hasar, Halil .

BIORESOURCE TECHNOLOGY, 2009, 100 (10) :2699-2705

[10] The DLVO theory in microbial adhesion [J].

Hermansson, M .

COLLOIDS AND SURFACES B-BIOINTERFACES, 1999, 14 (1-4) :105-119

← 1 2 3 4 →