Abstract：
:Microbial fuel cell (MFC) is a promising device for energy generation and organic waste treatment simultaneously by electrochemically active bacteria (EAB). In this study, an integrated aerobic-anaerobic strategy was developed to improve the performance of P. aeruginosa-inoculated MFC. With an aerobic start-up and following an anaerobic discharge process, the current density of MFC reached a maximum of 99.80µA/cm2, which was 91.6% higher than the MFC with conventional constant-anaerobic operation. Cyclic voltammetry and HPLC analysis showed that aerobic start-up significantly increased electron shuttle (pyocyanin) production (76% higher than the constant-anaerobic MFC). Additionally, enhanced anode biofilm formation was also observed in the integrated aerobic-anaerobic MFC. The increased pyocyanin production and biofilm formation promoted extracellular electron transfer from EAB to the anode and were the underlying mechanism for the MFC performance enhancement. This work demonstrated the integrated aerobic-anaerobic strategy would be a practical strategy to enhance the electricity generation of MFC.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Yong XY,Yan ZY,Shen HB,Zhou J,Wu XY,Zhang LJ,Zheng T,Jiang M,Wei P,Jia HH,Yong YCdoi
10.1016/j.biortech.2017.06.050subject
Has Abstractpub_date
2017-10-01 00:00:00pages
1191-1196eissn
0960-8524issn
1873-2976pii
S0960-8524(17)30937-9journal_volume
241pub_type
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