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Integration of a microbial fuel cell with activated sludge process for energy-saving wastewater treatment: taking a sequencing batch reactor as an example.
- Source :
-
Biotechnology and bioengineering [Biotechnol Bioeng] 2011 Jun; Vol. 108 (6), pp. 1260-7. Date of Electronic Publication: 2011 Feb 03. - Publication Year :
- 2011
-
Abstract
- 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/m(3) for one typical cycle and the current density reached up to 14 A/m(3) . 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.<br /> (Copyright © 2011 Wiley Periodicals, Inc.)
Details
- Language :
- English
- ISSN :
- 1097-0290
- Volume :
- 108
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Biotechnology and bioengineering
- Publication Type :
- Academic Journal
- Accession number :
- 21290383
- Full Text :
- https://doi.org/10.1002/bit.23056