Characterization of electricity generation and microbial community structure over long-term operation of a microbial fuel cell

Xizi Long; Xian Cao; Hailiang Song; Osamu Nishimura; Xianning Li

doi:10.1016/j.biortech.2019.121395

Characterization of electricity generation and microbial community structure over long-term operation of a microbial fuel cell

Xizi Long, Xian Cao, Hailiang Song, Osamu Nishimura, Xianning Li

ENG - Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

In this study, a continuous-flow microbial fuel cell (MFC) system was constructed to treat azo dye wastewater for 400 days. The electrical properties of the MFC after 400-day operation and the removal efficiencies of the MFC after long- and short-term operation were analyzed with respect to co-substrate concentrations. The power output of the MFC system decreased from 586 to 330 mV with increasing operating time, and the removal efficiencies of the MFC remained stable after long-term operation in comparison to those after short-term operation, even when the co-substrate concentration was reduced. Analysis of the degradation products showed that products generated from long-term operation of the MFC were present at low concentrations. The microbial community analysis revealed that the relative abundance of microorganisms related to the degradation of organics in the MFC increased after long-term operation, and microorganisms related to electricity generation decreased.

Original language	English
Article number	121395
Journal	Bioresource Technology
Volume	285
DOIs	https://doi.org/10.1016/j.biortech.2019.121395
Publication status	Published - 2019 Aug

Keywords

Azo dye
Bioelectrochemistry
Long-term operation
Microbial community
Microbial fuel cell

ASJC Scopus subject areas

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biortech.2019.121395

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title = "Characterization of electricity generation and microbial community structure over long-term operation of a microbial fuel cell",

abstract = "In this study, a continuous-flow microbial fuel cell (MFC) system was constructed to treat azo dye wastewater for 400 days. The electrical properties of the MFC after 400-day operation and the removal efficiencies of the MFC after long- and short-term operation were analyzed with respect to co-substrate concentrations. The power output of the MFC system decreased from 586 to 330 mV with increasing operating time, and the removal efficiencies of the MFC remained stable after long-term operation in comparison to those after short-term operation, even when the co-substrate concentration was reduced. Analysis of the degradation products showed that products generated from long-term operation of the MFC were present at low concentrations. The microbial community analysis revealed that the relative abundance of microorganisms related to the degradation of organics in the MFC increased after long-term operation, and microorganisms related to electricity generation decreased.",

keywords = "Azo dye, Bioelectrochemistry, Long-term operation, Microbial community, Microbial fuel cell",

author = "Xizi Long and Xian Cao and Hailiang Song and Osamu Nishimura and Xianning Li",

note = "Funding Information: This work was supported by the Provincial Natural Science Foundation of Jiangsu , China ( BK20171351 ), the Japan Society for the Promotion of Science [ P19056 ] and JP16H02747 , the National Natural Science Foundation of China ( 51828801 ), the Fundamental Research Funds for the Central Universities ( 2242016K41042 ) and the Scientific Research Foundation of Graduate School of Southeast University for financial support. Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2019",

month = aug,

doi = "10.1016/j.biortech.2019.121395",

language = "English",

volume = "285",

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T1 - Characterization of electricity generation and microbial community structure over long-term operation of a microbial fuel cell

AU - Long, Xizi

AU - Cao, Xian

AU - Song, Hailiang

AU - Nishimura, Osamu

AU - Li, Xianning

N1 - Funding Information: This work was supported by the Provincial Natural Science Foundation of Jiangsu , China ( BK20171351 ), the Japan Society for the Promotion of Science [ P19056 ] and JP16H02747 , the National Natural Science Foundation of China ( 51828801 ), the Fundamental Research Funds for the Central Universities ( 2242016K41042 ) and the Scientific Research Foundation of Graduate School of Southeast University for financial support. Publisher Copyright: © 2019 Elsevier Ltd

PY - 2019/8

Y1 - 2019/8

N2 - In this study, a continuous-flow microbial fuel cell (MFC) system was constructed to treat azo dye wastewater for 400 days. The electrical properties of the MFC after 400-day operation and the removal efficiencies of the MFC after long- and short-term operation were analyzed with respect to co-substrate concentrations. The power output of the MFC system decreased from 586 to 330 mV with increasing operating time, and the removal efficiencies of the MFC remained stable after long-term operation in comparison to those after short-term operation, even when the co-substrate concentration was reduced. Analysis of the degradation products showed that products generated from long-term operation of the MFC were present at low concentrations. The microbial community analysis revealed that the relative abundance of microorganisms related to the degradation of organics in the MFC increased after long-term operation, and microorganisms related to electricity generation decreased.

AB - In this study, a continuous-flow microbial fuel cell (MFC) system was constructed to treat azo dye wastewater for 400 days. The electrical properties of the MFC after 400-day operation and the removal efficiencies of the MFC after long- and short-term operation were analyzed with respect to co-substrate concentrations. The power output of the MFC system decreased from 586 to 330 mV with increasing operating time, and the removal efficiencies of the MFC remained stable after long-term operation in comparison to those after short-term operation, even when the co-substrate concentration was reduced. Analysis of the degradation products showed that products generated from long-term operation of the MFC were present at low concentrations. The microbial community analysis revealed that the relative abundance of microorganisms related to the degradation of organics in the MFC increased after long-term operation, and microorganisms related to electricity generation decreased.

KW - Azo dye

KW - Bioelectrochemistry

KW - Long-term operation

KW - Microbial community

KW - Microbial fuel cell

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Characterization of electricity generation and microbial community structure over long-term operation of a microbial fuel cell

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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