Enhanced Rhodococcus pyridinivorans HR-1 anode performance by adding trehalose lipid in microbial fuel cell. (November 2018)

• Record Type: Journal Article
• Authors: Cheng, Peng; Shan, Rui; Yuan, Hao-Ran; Deng, Li-fang; Chen, Yong
• Is Part Of: Bioresource technology. Volume 267(2018)
• Page Start: 774
• Page End: 777
• Publication Date: 2018-11
• Subjects: Microbial fuel cells -- Bio-surfactant -- Trehalose lipid -- Electron transfer -- Rhodococcus pyridinivorans; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2018.08.006
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: Current density and power output were promoted by the addition of bio-surfactant. MFC internal resistance was reduced with the treatment of trehalose lipid. Cyclic voltammetry and electrochemical impedance spectroscopy were investigated. Abstract: 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.