Journal
BIORESOURCE TECHNOLOGY
Volume 170, Issue -, Pages 483-490Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2014.08.033
Keywords
Bio-cathode microbial fuel cell; COD; Biosensor; Membrane reactor
Funding
- National Natural Science Foundation of China [51378349, 51108314]
- China Postdoctoral Science Foundation [2013M541184]
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A bio-cathode microbial fuel cell (MFC) with tubular membrane was integrated to construct a microbial fuel cell-tubular membrane bioreactor (MFC-TMBR) system, in which the bio-cathode MFC was developed as a biosensor for COD real-time monitoring in TMBR and the performance was analyzed in terms of its current variation caused by operation parameters. With a constant anode potential, the effect of HRT demonstrated that higher rate of mass transport increased the response of the system. The system was further explored an inverse relationship between TMP and current peak by using EPS concentration under the different MLSS concentration. The sensor output had a linear relationship with COD up to 1000 mg/L (regression coefficient, R-2 = 0.97) and MLSS (regression coefficient, R-2 = 0.94). The simple and compact bio-cathode MFC biosensor for TMBR using MFC-TMBR integrated system showed promising potential for direct and economical COD online monitoring, and provided an opportunity to widen the application of MFC-based biosensor. (C) 2014 Elsevier Ltd. All rights reserved.
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