Long-term performance of sediment microbial fuel cells with multiple anodes

Qing Zhao; Min Ji; Ruying Li; Zhiyong Jason Ren

doi:10.1016/j.biortech.2017.03.002

Long-term performance of sediment microbial fuel cells with multiple anodes

Qing Zhao, Min Ji, Ruying Li, Zhiyong Jason Ren

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

45 Scopus citations

Abstract

This study constructed multiple-anode SMFCs with different anode spacing and investigated their long-term performance. Results show that multiple anodes extended electricity generation from SMFCs due to increased anode surface area, but the distance between the anodes showed limited effects on power output. Power generation was seriously inhibited when temperature was below 20 °C, but system recovered once temperature rose based to ambient condition. The degradation of readily oxidizable organic matter (ROOM) and decomposition of refractory organics occurred simultaneously. Worms’ growth in the sediment destabilized power output, caused the increase of COD and decrease of pH and DO in water layer, and affected the microbial communities in sediments. ANME-2D related to anaerobic oxidation of methane was enriched around anodes and might benefit electron transfer in SMFCs.

Original language	English (US)
Pages (from-to)	178-185
Number of pages	8
Journal	Bioresource Technology
Volume	237
DOIs	https://doi.org/10.1016/j.biortech.2017.03.002
State	Published - 2017
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

Keywords

Ambient temperature
Anode distance
High-throughput sequencing
Multiple-anode sediment microbial fuel cell
Worms’ growth

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10.1016/j.biortech.2017.03.002

Cite this

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title = "Long-term performance of sediment microbial fuel cells with multiple anodes",

abstract = "This study constructed multiple-anode SMFCs with different anode spacing and investigated their long-term performance. Results show that multiple anodes extended electricity generation from SMFCs due to increased anode surface area, but the distance between the anodes showed limited effects on power output. Power generation was seriously inhibited when temperature was below 20 °C, but system recovered once temperature rose based to ambient condition. The degradation of readily oxidizable organic matter (ROOM) and decomposition of refractory organics occurred simultaneously. Worms{\textquoteright} growth in the sediment destabilized power output, caused the increase of COD and decrease of pH and DO in water layer, and affected the microbial communities in sediments. ANME-2D related to anaerobic oxidation of methane was enriched around anodes and might benefit electron transfer in SMFCs.",

keywords = "Ambient temperature, Anode distance, High-throughput sequencing, Multiple-anode sediment microbial fuel cell, Worms{\textquoteright} growth",

author = "Qing Zhao and Min Ji and Ruying Li and Ren, {Zhiyong Jason}",

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year = "2017",

doi = "10.1016/j.biortech.2017.03.002",

language = "English (US)",

volume = "237",

pages = "178--185",

journal = "Bioresource Technology",

issn = "0960-8524",

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T1 - Long-term performance of sediment microbial fuel cells with multiple anodes

AU - Zhao, Qing

AU - Ji, Min

AU - Li, Ruying

AU - Ren, Zhiyong Jason

PY - 2017

Y1 - 2017

N2 - This study constructed multiple-anode SMFCs with different anode spacing and investigated their long-term performance. Results show that multiple anodes extended electricity generation from SMFCs due to increased anode surface area, but the distance between the anodes showed limited effects on power output. Power generation was seriously inhibited when temperature was below 20 °C, but system recovered once temperature rose based to ambient condition. The degradation of readily oxidizable organic matter (ROOM) and decomposition of refractory organics occurred simultaneously. Worms’ growth in the sediment destabilized power output, caused the increase of COD and decrease of pH and DO in water layer, and affected the microbial communities in sediments. ANME-2D related to anaerobic oxidation of methane was enriched around anodes and might benefit electron transfer in SMFCs.

AB - This study constructed multiple-anode SMFCs with different anode spacing and investigated their long-term performance. Results show that multiple anodes extended electricity generation from SMFCs due to increased anode surface area, but the distance between the anodes showed limited effects on power output. Power generation was seriously inhibited when temperature was below 20 °C, but system recovered once temperature rose based to ambient condition. The degradation of readily oxidizable organic matter (ROOM) and decomposition of refractory organics occurred simultaneously. Worms’ growth in the sediment destabilized power output, caused the increase of COD and decrease of pH and DO in water layer, and affected the microbial communities in sediments. ANME-2D related to anaerobic oxidation of methane was enriched around anodes and might benefit electron transfer in SMFCs.

KW - Ambient temperature

KW - Anode distance

KW - High-throughput sequencing

KW - Multiple-anode sediment microbial fuel cell

KW - Worms’ growth

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SP - 178

EP - 185

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Long-term performance of sediment microbial fuel cells with multiple anodes

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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