Abstract：
:Baffles are a key component of an airlift membrane bioreactor (MBR), which could enhance membrane surface shear for fouling control. In order to obtain an optimal hydraulic condition of the reactor, the effects of baffle location and size were systematically explored in this study. Computational fluid dynamics (CFD) was used to investigate the hydrodynamics in a bench-scale airlift flat sheet MBR with various baffle locations and sizes. Validated simulation results showed that side baffles were more effective in elevating membrane surface shear than front baffles. The maximum average shear stress was achieved by adjusting baffle size when both front and side baffles were installed. With the optimized baffle configuration, the shear stress was 10-30% higher than that without baffles at a same aeration intensity (specific air demand per membrane area in the range of 0-0.45m(3)m(-2)h(-1)). The effectiveness of baffles was particularly prominent at lower aeration intensities.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Yan X,Xiao K,Liang S,Lei T,Liang P,Xue T,Yu K,Guan J,Huang Xdoi
10.1016/j.biortech.2014.10.133subject
Has Abstractpub_date
2015-01-01 00:00:00pages
633-7eissn
0960-8524issn
1873-2976pii
S0960-8524(14)01565-Xjournal_volume
175pub_type
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journal_title：Bioresource technology
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更新日期：2013-02-01 00:00:00
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更新日期：2010-06-01 00:00:00
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abstract：:This article has been withdrawn at the request of the authors and editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy. ...
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doi：10.1016/j.biortech.2014.02.040
更新日期：2014-02-21 00:00:00
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