Xian-Wei Liu and Yong-Peng Wang contributed equally to this work.
Integration of a microbial fuel cell with activated sludge process for energy-saving wastewater treatment: Taking a sequencing batch reactor as an example†
Article first published online: 3 FEB 2011
Copyright © 2011 Wiley Periodicals, Inc.
Biotechnology and Bioengineering
Volume 108, Issue 6, pages 1260–1267, June 2011
How to Cite
Liu, X.-W., Wang, Y.-P., Huang, Y.-X., Sun, X.-F., Sheng, G.-P., Zeng, R. J., Li, F., Dong, F., Wang, S.-G., Tong, Z.-H. and Yu, H.-Q. (2011), Integration of a microbial fuel cell with activated sludge process for energy-saving wastewater treatment: Taking a sequencing batch reactor as an example. Biotechnol. Bioeng., 108: 1260–1267. doi: 10.1002/bit.23056
- Issue published online: 12 APR 2011
- Article first published online: 3 FEB 2011
- Accepted manuscript online: 18 JAN 2011 12:00AM EST
- Manuscript Accepted: 3 JAN 2011
- Manuscript Revised: 19 DEC 2010
- Manuscript Received: 5 NOV 2010
- NSFC. Grant Number: 50708106
- CAS. Grant Numbers: KZCX2-YW-QN504, KJCX2-YW-H21-01
- Shanghai Tongji Gao Tingyao Environmental Science & Technology Development Foundation
- activated sludge;
- energy recovery;
- microbial fuel cell (MFC);
- sequencing batch reactor (SBR);
In the research and application of microbial fuel cell (MFC), how to incorporate MFCs into current wastewater infrastructure is an importance issue. Here, we report a novel strategy of integrating an MFC into a sequencing batch reactor (SBR) to test the energy production and the chemical oxygen demand (COD) removal. The membrane-less biocathode MFC is integrated with the SBR to recover energy from the aeration in the form of electricity and thus reduce the SBR operation costs. In a lab-scale integrated SBR-MFC system, the maximum power production of the MFC was 2.34 W/m3 for one typical cycle and the current density reached up to 14 A/m3. As a result, the MFC contributed to the 18.7% COD consumption of the integrated system and also recovered energy from the aeration tank with a volume fraction of only 12% of the SBR. Our strategy provides a feasible and effective energy-saving and -recovering solution to upgrade the existing activated sludge processes. Biotechnol. Bioeng. 2011; 108:1260–1267. © 2011 Wiley Periodicals, Inc.