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25 April 2022 Effect of the intermittent electric field on the performance of dynamic membrane bioreactor
Jingting Hu, Chunbo Zhang, Meijun Liu, Yueyang Sun
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Proceedings Volume 12244, 2nd International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2022); 1224422 (2022) https://doi.org/10.1117/12.2634900
Event: 2nd International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2022), 2022, Guilin, China
Abstract
The high cost of membrane modules and the inevitable membrane fouling are the two key factors restricting the industrial application of MBR technology. By introducing dynamic membranes to replace traditional membrane modules, the novel dynamic membrane bioreactor (DMBR) can effectively save operating cost. However, how to avoid membrane fouling under long-term operation remains to be studied. The main purpose of this research is to study the effect of intermittent electric field on membrane fouling and pollutant removal in a DMBR. The results showed that the membrane fouling rate was significantly reduced by 33% under intermittent electric field condition. The average removal efficiency of COD, NH4+-N in the reactor with intermittent electric field was increased by 4.0%, 8.7%, respectively. In addition, the content of cyclic di-GMP (c-di-GMP, a typical second messenger molecule) was reduced under electric field condition, thus reducing the amount of the extracellular polymeric substances. This study would provide the design and operational information of DMBR under the intermittent electric field.
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Jingting Hu, Chunbo Zhang, Meijun Liu, and Yueyang Sun "Effect of the intermittent electric field on the performance of dynamic membrane bioreactor", Proc. SPIE 12244, 2nd International Conference on Mechanical, Electronics, and Electrical and Automation Control (METMS 2022), 1224422 (25 April 2022); https://doi.org/10.1117/12.2634900
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KEYWORDS
Bacteria
Analytical research
Molecules
Polymers
Oxygen
Power supplies
Sun
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