標題: Fouling Mitigation by TiO2 Composite Membrane in Membrane Bioreactors
作者: Su, Yu-Chun
Huang, Chihpin
Pan, Jill Ruhsing
Hsieh, Wen-Pin
Chu, Min-Chia
環境工程研究所
生物科技學系
防災與水環境研究中心
Institute of Environmental Engineering
Department of Biological Science and Technology
Disaster Prevention and Water Environment Research Center
關鍵字: Fouling mitigation;Membrane bioreactor (MBRs);Membrane separation;Sol-gel;TiO2
公開日期: 1-三月-2012
摘要: Membrane bioreactors (MBRs) have attracted widespread attention in advanced water treatment because of their production of consistent and high-quality effluent. However, membrane fouling during operation has greatly hindered their application. Studies have suggested that a coating of TiO2 nanoparticles on membranes may reduce membrane fouling by enhancing the hydrophilicity of the membrane. In this study, two membranes were coated with TiO2 nanoparticles for membrane fouling mitigation. To evaluate the filtration performance of the TiO2 composite membranes, a synthetic wastewater was prepared to model the municipal wastewater for the MBR operation. The mixed liquor from the MBR was used in the filtration test to evaluate the performance of the TiO2 composite membrane. Filtration tests showed that membrane fouling was reduced substantially, which was attributable to the increased hydrophilicity of the membrane. Results also shows that optimal amount of coating is important in fouling mitigation. An ultrasonic washing test suggests that most of the TiO2 particles were firmly coated on the surface of the composite membrane. DOI: 10.1061/(ASCE)EE.1943-7870.0000419. (C) 2012 American Society of Civil Engineers.
URI: http://dx.doi.org/10.1061/(ASCE)EE.1943-7870.0000419
http://hdl.handle.net/11536/15819
ISSN: 0733-9372
DOI: 10.1061/(ASCE)EE.1943-7870.0000419
期刊: JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE
Volume: 138
Issue: 3
起始頁: 344
結束頁: 350
顯示於類別:期刊論文


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