Enhancement of gaseous chlorobenzene biodegradation and power generation in a microbial fuel cell by bifunctional Acinetobacter sp. HY-99C

Haoyang Liu; Yang Yu; Shengtao Jiang; Haimin Sun; Weixi Zhang; Jianmeng Chen; Dongzhi Chen

doi:10.1016/j.chemosphere.2023.141105

Enhancement of gaseous chlorobenzene biodegradation and power generation in a microbial fuel cell by bifunctional Acinetobacter sp. HY-99C

Chemosphere. 2024 Feb:350:141105. doi: 10.1016/j.chemosphere.2023.141105. Epub 2024 Jan 1.

Authors

Haoyang Liu¹, Yang Yu², Shengtao Jiang³, Haimin Sun⁴, Weixi Zhang⁵, Jianmeng Chen⁶, Dongzhi Chen⁷

Affiliations

¹ Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, School of Life Sciences, Taizhou University, Taizhou, 318000, China; College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China.
² Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan, 316022, China; National & Local Joint Engineering Research Center of Harbor Oil & Gas Storage and Transportation Technology, College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan, 316022, China.
³ Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, School of Life Sciences, Taizhou University, Taizhou, 318000, China.
⁴ Zhejiang Zhonglan Environmental Technology Co., Ltd, China.
⁵ College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China.
⁶ Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan, 316022, China; College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China; National & Local Joint Engineering Research Center of Harbor Oil & Gas Storage and Transportation Technology, College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan, 316022, China.
⁷ Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, School of Life Sciences, Taizhou University, Taizhou, 318000, China; Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan, 316022, China; College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China; National & Local Joint Engineering Research Center of Harbor Oil & Gas Storage and Transportation Technology, College of Petrochemical Engineering and Environment, Zhejiang Ocean University, Zhoushan, 316022, China. Electronic address: cdz@zjut.edu.cn.

PMID: 38171394
DOI: 10.1016/j.chemosphere.2023.141105

Abstract

The efficient biodegradation of volatile chlorinated hydrocarbons using microbial fuel cells (MFCs) offers a feasible approach for purifying waste gas and alleviating energy crises. However, power generation is limited by poor pollutant biodegradation and slow electron transfer. The bifunctional bacterium Acinetobacter sp. HY-99C was screened and used to improve the performance of a conventional MFC. The inoculation of strain HY-99C into the conventional MFC promoted the formation of a compact biofilm with high metabolic activity and an enriched bifunctional genus (Acinetobacter), which resulted in the accelerated decomposition of chlorinated aromatic compounds into biodegradable organic acids. This led to efficient chlorobenzene removal and power generation from the MFC, with a chlorobenzene elimination capacity of 70.8 g m^-3 h^-1 and power density of 89.6 mW m^-2, which are improved over those of previously reported MFCs. This study provides novel insights into enhancing pollutant removal and power generation in MFCs.

Keywords: Bifunctional bacterium; Electron transfer; Microbial fuel cell; Power generation; Volatile chlorinated hydrocarbon.

MeSH terms

Bacteria
Bioelectric Energy Sources* / microbiology
Chlorobenzenes
Electricity
Electrodes
Environmental Pollutants*
Gases

Substances

Gases
Environmental Pollutants
Chlorobenzenes