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 |