Carbonized Cow Dung as a High Performance and Low Cost Anode Material for Bioelectrochemical Systems

We develop a high-performance anode formed from carbonized cow dung for bioelectrochemical systems. Thermal gravimetric analysis showed that the CD carbonization process started at 300°C and ended at approximately 550°C; the weight was reduced by 51%. After a heat-treatment at 800°C for 2 h, the tre...

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Published inFrontiers in microbiology Vol. 9; p. 2760
Main Authors Feng, Huajun, Ge, Zhipeng, Chen, Wei, Wang, Jing, Shen, Dongsheng, Jia, Yufeng, Qiao, Hua, Ying, Xianbin, Zhang, Xueqin, Wang, Meizhen
Format Journal Article
LanguageEnglish
Published Switzerland Frontiers Media S.A 30.11.2018
Subjects
anode material
bioelectrochemical system
carbonization
cow dung
current generation
Microbiology
anode material
cow dung
current generation
bioelectrochemical system
carbonization
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Summary:We develop a high-performance anode formed from carbonized cow dung for bioelectrochemical systems. Thermal gravimetric analysis showed that the CD carbonization process started at 300°C and ended at approximately 550°C; the weight was reduced by 51%. After a heat-treatment at 800°C for 2 h, the treated CD featured a good conductivity and a high specific surface area. The maximum current density of 11.74 ± 0.41 A m was achieved by CD anode (heated at 800°C), which remained relatively stable from more than 10 days. This study shows that a valuable anode material can be produced through conversion of CD by high-temperature carbonization. This approach provides a new way to alleviate environmental problems associated with CD.
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Edited by: Tian Zhang, Wuhan University of Technology, China
This article was submitted to Microbiotechnology, Ecotoxicology and Bioremediation, a section of the journal Frontiers in Microbiology
Reviewed by: Kun Guo, Ghent University, Belgium; Nabin Aryal, Aarhus University, Denmark
ISSN:1664-302X
1664-302X
DOI:10.3389/fmicb.2018.02760