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The role of EPS concentration on membrane fouling control: Comparison analysis of hybrid membrane bioreactor and conventional membrane bioreactor
Liu, YJ (Liu, Yongjun)[1,2];  Liu, Z (Liu, Zhe)[1];  Zhang, AN (Zhang, Aining)[1];  Chen, YP (Chen, Yiping)[2];  Wang, XC (Wang, Xiaochang)[1]
2012-11-01
发表期刊DESALINATION
卷号305页码:38-43
文章类型期刊论文
摘要

A hybrid membrane bioreactor (HMBR) was developed by adding biofilm carriers into a conventional membrane bioreactor (CMBR), and comparison experiments were conducted to investigate the role of extracellular polymeric substances (EPS) on membrane fouling control in HMBR and CMBR for municipal wastewater treatment. Results showed that the concentrations of soluble EPS (S-EPS), loosely bond EPS (LB-EPS) and tightly bond EPS (TB-EPS) in the HMBR were decreased by 42.9%, 41.6% and 1.5%, respectively, compared with the CMBR. The physical properties of the activated sludge such as supernatant turbidity (ST), sludge volume index (SVI) and particle structure were found to be strongly influenced by LB-EPS concentration. In addition, major components of EPS could be detected as proteins, carbohydrates and humus, influence level of different components on sludge physical properties is polysaccharides > proteins > humus. After the same operational period, the cake layer resistance Rc and pore resistance Rp in the HMBR accounted for 43% and 56% of that in the CMBR, respectively. It resulted the duration of transmembrane pressure (TMP) to reach the prescribed maximum of 20 kPa from 57 days in the CMBR prolonged to 97 days in the HMBR. HMBR operation could control the LB-EPS concentration, and further controled the membrane fouling effectively.

关键词Extracellular Polymeric Substances (Eps) Membrane Fouling Control Hybrid Membrane Bioreactor (Hmbr) Conventional Membrane Bioreactor (Cmbr)
DOI10.1016/j.desal.2012.08.013
收录类别SCI ; EI
语种英语
引用统计
被引频次:29[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/10153
专题生态环境研究室
通讯作者Liu, YJ (Liu, Yongjun)[1,2]
作者单位1.Key Lab of Northwest Water Resource, Ecology and Environment, Ministry of Education, Xi'an University of Architecture and Technology, No. 13 Yanta Road, Xi'an, 710055, China;
2.Institute of Earth Environment, Chinese Academy of Sciences, No. 10 Fenghui South Road, Xi'an, 710075, China
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GB/T 7714
Liu, YJ , Liu, Z , Zhang, AN ,et al. The role of EPS concentration on membrane fouling control: Comparison analysis of hybrid membrane bioreactor and conventional membrane bioreactor[J]. DESALINATION,2012,305:38-43.
APA Liu, YJ , Liu, Z , Zhang, AN , Chen, YP ,& Wang, XC .(2012).The role of EPS concentration on membrane fouling control: Comparison analysis of hybrid membrane bioreactor and conventional membrane bioreactor.DESALINATION,305,38-43.
MLA Liu, YJ ,et al."The role of EPS concentration on membrane fouling control: Comparison analysis of hybrid membrane bioreactor and conventional membrane bioreactor".DESALINATION 305(2012):38-43.
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