Journal
BIORESOURCE TECHNOLOGY
Volume 267, Issue -, Pages 774-777Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.08.006
Keywords
Microbial fuel cells; Bio-surfactant; Trehalose lipid; Electron transfer; Rhodococcus pyridinivorans
Funding
- National Natural Science Funds of China [51776211, 51676194]
- Science and Technology Project of Guangdong Province, China [2017B040404009, 2017B040404011]
- Science and Technology Project of Guangzhou, China [2016201604030077]
- Strategic Priority Research Program of the Chinese Academy of Sciences, China [XDA13040102]
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In this study, a trehalose lipid was added to a Rhodococcus pyridinivorans-inoculated MFC to improve the power output by enhancing electron transfer. Upon trehalose lipid additions of different concentrate from 0 to 20 mg/L, the maximum power density increased from 54.7 mW/m(2) to 324.4 mW/m(2) (5.93 times) while the corresponding current density was 3.66 times increased from 0.35 A/m(2) to 1.28 A/m(2). Cyclic voltammetry analysis revealed that the addition of trehalose lipid increased the electron transfer performance, while electrochemical impedance spectroscopy results proved a decrease in internal resistance. It was demonstrated that adding bio-surfactant in MFC was a novel way to enhance power output performance.
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