Acetate and electricity generation from methane in conductive fiber membrane- microbial fuel cells

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

2 Scopus Citations
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Author(s)

  • Ya-Nan Bai
  • Fang Zhang
  • Lin-Peng Yu
  • Ya-Li Zhang
  • Yun Wu
  • And 3 others
  • Tai-Chu Lau
  • He-Ping Zhao
  • Raymond J. Zeng

Detail(s)

Original languageEnglish
Article number150147
Journal / PublicationScience of the Total Environment
Volume804
Online published4 Sep 2021
Publication statusPublished - 15 Jan 2022

Abstract

Microbial conversion of methane to electricity, fuels, and liquid chemicals has attracted much attention. How-ever, due to the low solubility of methane, it is not considered a suitable substrate for microbial fuel cells (MFCs). In this study, a conductive fiber membrane (CFM) module was constructed as the bioanode of methane-driven MFCs, directly delivering methane. After biofilm formation on the CFM surface, a steady voltage output of 0.6 to 0.7 V was recorded, and the CFM-MFCs obtained a maximum power density of 64 ± 2 mW/m2. Moreover, methane oxidation produced a high concentration of intermediate acetate (up to 7.1 mM). High-throughput 16S rRNA gene sequencing suggests that the microbial community was significantly changed after electricity generation. Methane-related archaea formed a symbiotic consortium with characterized electroactive bacteria and fermentative bacteria, suggesting a combination of three types of microorganisms for methane con-version into acetate and electricity. (C) 2021 Elsevier B.V. All rights reserved.

Research Area(s)

  • Methane conversion, Electricity generation, Acetate, Microbial fuel cells (MFCs), Microbial community, ANAEROBIC OXIDATION, NITROGEN REMOVAL, WASTE-WATER, BIOFILM REACTOR, REDUCTION, BACTERIA, ANAMMOX, DENITRIFICATION, ARCHAEA, ENERGY

Citation Format(s)

Acetate and electricity generation from methane in conductive fiber membrane- microbial fuel cells. / Bai, Ya-Nan; Zhang, Fang; Yu, Lin-Peng; Zhang, Ya-Li; Wu, Yun; Lau, Tai-Chu; Zhao, He-Ping; Zeng, Raymond J.

In: Science of the Total Environment, Vol. 804, 150147, 15.01.2022.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review