Real sewage was continuously treated by a laboratory-scale anaerobic submerged membrane bioreactor (AnSMBR) for over 160 days. Results showed that around 90% of chemical oxygen demand, and 99% of turbidity and total suspended solids in the sewage could be removed by the AnSMBR system. Membrane flux sustained at 11 L/(m2 h) was realized with biogas sparging. Small flocs from sludge deflocculation in the early operational period caused a high membrane fouling rate, and the high specific filtration resistance of the cake layer appeared mostly attributable to the osmotic pressure effect. The performance results were also compared with those in the literature for upflow anaerobic sludge blanket reactors and aerobic membrane bioreactors for sewage treatment, demonstrating that AnSMBR could provide a desirable alternative for sewage treatment.
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Research Article|
February 18 2014
Pollutant removal and membrane fouling in an anaerobic submerged membrane bioreactor for real sewage treatment
Fangyuan Wang;
Fangyuan Wang
1College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
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Jianrong Chen;
Jianrong Chen
1College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
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Huachang Hong;
Huachang Hong
1College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
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Aijun Wang;
Aijun Wang
1College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
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Hongjun Lin
1College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
E-mail: linhonjun@163.com
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Water Sci Technol (2014) 69 (8): 1712–1719.
Article history
Received:
October 29 2013
Accepted:
February 03 2014
Citation
Fangyuan Wang, Jianrong Chen, Huachang Hong, Aijun Wang, Hongjun Lin; Pollutant removal and membrane fouling in an anaerobic submerged membrane bioreactor for real sewage treatment. Water Sci Technol 1 April 2014; 69 (8): 1712–1719. doi: https://doi.org/10.2166/wst.2014.080
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