標題: Behavior of membrane scaling during crossflow filtration in the anaerobic MBR system
作者: You, HS
Huang, CP
Pan, JR
Chang, SC
環境工程研究所
Institute of Environmental Engineering
關鍵字: membrane bioreactor;scaling;fouling;chemical cleaning
公開日期: 2006
摘要: Fouling of membrane bioreactor (MBR) has been studied intensively. Because of the high concentration of carbonates, scaling can be a serious problem in anaerobic bioreactor, which attracts little attention. In this study, the wastewater was treated with an anaerobic process followed by either a submerged or a side-stream aerobic membrane reactor. The wastewater was spiked with calcium to investigate the effect of scaling on membrane filtration. Very little scaling was detected in the external membrane system (the side-stream MBR). Results from chemical cleaning of internal membrane system indicated that the flux decline caused by membrane scaling was far more severe than that by membrane fouling. However, the flux decline from membrane scaling can be effectively recovered by the chemical cleaning of EDTA and NaOCl. Fouling of membrane bioreactor (MBR) has been studied intensively. Because of the high concentration of carbonates, scaling can be a serious problem in anaerobic bioreactor, which attracts little attention. In this study, the wastewater was treated with an anaerobic process followed by either a submerged or a side-stream aerobic membrane reactor. The wastewater was spiked with calcium to investigate the effect of scaling on membrane filtration. Very little scaling was detected in the external membrane system (the side-stream MBR). Results from chemical cleaning of internal membrane system indicated that the flux decline caused by membrane scaling was far more severe than that by membrane fouling. However, the flux decline from membrane scaling can be effectively recovered by the chemical cleaning of EDTA and NaOCl.
URI: http://hdl.handle.net/11536/12799
http://dx.doi.org/10.1080/01496390600632487
ISSN: 0149-6395
DOI: 10.1080/01496390600632487
期刊: SEPARATION SCIENCE AND TECHNOLOGY
Volume: 41
Issue: 7
起始頁: 1265
結束頁: 1278
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