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Vol. 26 No. 11 (2014): Vol 26 Issue 11

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Influence of Material on Membrane Fouling and Cleaning Results of Mustard Tuber Wastewater Treatment by Membrane Bioreactor

https://doi.org/10.14233/ajchem.2014.17502
Hongxiang Chai
Key Laboratory of Three Gorges Reservoir Region's Eco-Environments, Ministry of Education, Chongqing University, Chongqing 400045, P.R. China ;National Centre for International Research of Low-Carbon and Green Buildings, Chongqing University, Chongqing 400045, P.R. China
Luwei Guo
Key Laboratory of Three Gorges Reservoir Region's Eco-Environments, Ministry of Education, Chongqing University, Chongqing 400045, P.R. China ;National Centre for International Research of Low-Carbon and Green Buildings, Chongqing University, Chongqing 400045, P.R. China
Yinghua Wei
Key Laboratory of Three Gorges Reservoir Region's Eco-Environments, Ministry of Education, Chongqing University, Chongqing 400045, P.R. China ;National Centre for International Research of Low-Carbon and Green Buildings, Chongqing University, Chongqing 400045, P.R. China
Jun Du
Key Laboratory of Three Gorges Reservoir Region's Eco-Environments, Ministry of Education, Chongqing University, Chongqing 400045, P.R. China ;National Centre for International Research of Low-Carbon and Green Buildings, Chongqing University, Chongqing 400045, P.R. China
Jian Zhou
Key Laboratory of Three Gorges Reservoir Region's Eco-Environments, Ministry of Education, Chongqing University, Chongqing 400045, P.R. China ;National Centre for International Research of Low-Carbon and Green Buildings, Chongqing University, Chongqing 400045, P.R. China
Qiang He
Key Laboratory of Three Gorges Reservoir Region's Eco-Environments, Ministry of Education, Chongqing University, Chongqing 400045, P.R. China ;National Centre for International Research of Low-Carbon and Green Buildings, Chongqing University, Chongqing 400045, P.R. China

Corresponding Author(s) : Hongxiang Chai

chaihx@cqu.edu.cn

Asian Journal of Chemistry, Vol. 26 No. 11 (2014): Vol 26 Issue 11

Abstract

When treating mustard tuber wastewater by membrane bioreactor (MBR), the membrane may be easily contaminated,in which process the membrane material is one of the major factors. To make it clear how the material affects the membrane fouling, four groups of experimental study were designed and carried out, respectively using the PVDF and PP membranes under the same conditions to find out which membrane was better in case of PVDF and PP membrane for the Membrane Bioreactor. And eight groups of tests were carried out to find out the optimal way for membrane cleaning. The results showed that, when controlling biofilm density at 30 %, water temperature at 8-12 ºC, dissolved oxygen at 4-5 mg/L and the suction pump inhaled 10 min and stopped for 3 min, the contamination of the PP membrane was worse than the PVDF membrane in the treatmentof mustard tuber wastewater by membrane bioreactor. Meanwhile, it turned out that physical cleaning method had high efficiency to resume the membrane flux and the membrane flux can be resumed above 90 % if cleaned by the 0.5 % sodium hypochlorite solution.

Keywords

Cleaning Fouling Material Membrane bioreactor Mustard wastewater
Chai, H., Guo, L., Wei, Y., Du, J., Zhou, J., & He, Q. (2014). Influence of Material on Membrane Fouling and Cleaning Results of Mustard Tuber Wastewater Treatment by Membrane Bioreactor. Asian Journal of Chemistry, 26(11), 3246–3248. https://doi.org/10.14233/ajchem.2014.17502
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