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Sludge Derived Carbon Modified Anode in Microbial Fuel Cell for Performance Improvement and Microbial Community Dynamics by Kaili Zhu; Yihu Xu; Xiao Yang; Wencai Fu; Wenhao Dang; Jinxia Yuan; Zhiwei Wang is a Engineering article available to read on EtoBox.

What is Sludge Derived Carbon Modified Anode in Microbial Fuel Cell for Performance Improvement and Microbial Community Dynamics about?

The conversion of activated sludge into high value-added materials, such as sludge carbon (SC), has attracted increasing attention because of its potential for various applications. In this study, the effect of SC carbonized at temperatures of 600, 800, 1000, and 1200 °C on the anode performance of microbial fuel cells and its mechanism are discussed. A pyrolysis temperature of 1000 °C for the loaded electrode (SC1000/CC) generated a maximum areal power density of 2.165 ± 0.021 W·m−2 and a current density of 5.985 ± 0.015 A·m−2, which is 3.017- and 2.992-fold that of the CC anode. The addition of SC improves microbial activity, optimizes microbial community structure, promotes the expression of c-type cytochromes, and is conducive to the formation of electroactive biofilms. This study not only describes a technique for the preparation of high-performance and low-cost anodes, but also sheds some light on the rational utilization of waste resources such as aerobic activated sludge.

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Author

Kaili Zhu; Yihu Xu; Xiao Yang; Wencai Fu; Wenhao Dang; Jinxia Yuan; Zhiwei Wang

Publisher

MDPI AG

Published

2022

Language

EN

Field

Engineering (Physical Sciences)