Distribution of Extracellular Polymeric Substances in Pilot-Scale Membrane Bioreactor

被引：0
|
作者：
邢锴 [1 ]
张宏伟 [1 ]
沙之杰 [2 ]
牛志广 [1 ]
李莹 [1 ]
王亮 [1 ,3 ]
机构：
[1] 不详
[2] School of Environmental Science and Engineering,Tianjin University
[3] 不详
[4] Southwestern University of Finance and Economy
[5] Department of Environmental Engineering,Tianjin Polytechnic University
[6] 不详
来源：
Transactions of Tianjin University . | 2010年 / 02期
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摘要：
The spatial distribution of extracellular polymeric substances (EPS) in a pilot-scale membrane bioreactor (MBR) was studied. The sampling points on top of and inside the membrane module were measured and analyzed by the experimental variant function. The content of EPS was spatially interpolated by ordinary Kriging method, and illustrated with SURFER software. A case study was carried out in an MBR with membrane aperture of 0.4 μm and handling capacity of 120 m3/d in Jizhuangzi sewage treatment plant, Tianjin. From the visualization of EPS distribution, it is seen that on the horizontal plane, the content of EPS was the lowest at the center; and on the vertical plane, the content of EPS decreased with the increase of depth. The shearing force caused by aeration of perforated pipe and the influent mode are the main influencing factors for this distribution.
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页数：5
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