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Limitation of voltage reversal in the degradation of azo dye by a stacked double-anode microbial fuel cell and characterization of the microbial community structure.
Sci Total Environ. 2021 Feb 01; 754:142454.ST

Abstract

In this study, two double-anode microbial fuel cells (MFCs) were connected in series for degradation of the azo dye reactive brilliant red X-3B. After the series connection, the electricity generation of one of the MFCs decreased, and the other was not affected too much. Due to the special structure in the double-anode MFC reduced the imbalanced performance between the MFC units, the occurrence of voltage reversal was limited. The removal efficiencies in two MFC reactors were not consistent after the series connection, the results showed that the MFC with the reduced electricity generation had the higher removal efficiencies, it was 12.90, 11.66, and 40.05% higher than in the MFC in which the power generation capacity was not affected after the series connection, the MFC without serial connection, and the control group, respectively. Meanwhile, the microbial communities related to the degradation of refractory organic compounds increased and related to electricity generation decreased in the MFC with the reduced electricity generation, the changes of the microbial communities were consistent with its electricity generation and the removal efficiencies. The degradation products in the effluent from two MFC units showed that had the products generated from the MFC with the reduced electricity generation had simpler structures comparing the other MFC unit.

Authors+Show Affiliations

School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China.State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, Shaanxi 710048, China. Electronic address: wanghui306@xaut.edu.cn.School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China; International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Aoba Aramaki 6-6-06, Sendai 980-8579, Japan. Electronic address: osamu.nishimura.d2@tohoku.ac.jp.School of Energy and Environment, Southeast University, Nanjing, Jiangsu 210096, China. Electronic address: lxnseu@163.com.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

33254847

Citation

Cao, Xian, et al. "Limitation of Voltage Reversal in the Degradation of Azo Dye By a Stacked Double-anode Microbial Fuel Cell and Characterization of the Microbial Community Structure." The Science of the Total Environment, vol. 754, 2021, p. 142454.
Cao X, Wang H, Long X, et al. Limitation of voltage reversal in the degradation of azo dye by a stacked double-anode microbial fuel cell and characterization of the microbial community structure. Sci Total Environ. 2021;754:142454.
Cao, X., Wang, H., Long, X., Nishimura, O., & Li, X. (2021). Limitation of voltage reversal in the degradation of azo dye by a stacked double-anode microbial fuel cell and characterization of the microbial community structure. The Science of the Total Environment, 754, 142454. https://doi.org/10.1016/j.scitotenv.2020.142454
Cao X, et al. Limitation of Voltage Reversal in the Degradation of Azo Dye By a Stacked Double-anode Microbial Fuel Cell and Characterization of the Microbial Community Structure. Sci Total Environ. 2021 Feb 1;754:142454. PubMed PMID: 33254847.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Limitation of voltage reversal in the degradation of azo dye by a stacked double-anode microbial fuel cell and characterization of the microbial community structure. AU - Cao,Xian, AU - Wang,Hui, AU - Long,Xizi, AU - Nishimura,Osamu, AU - Li,Xianning, Y1 - 2020/09/22/ PY - 2020/04/26/received PY - 2020/08/10/revised PY - 2020/09/13/accepted PY - 2020/12/1/entrez PY - 2020/12/2/pubmed PY - 2020/12/2/medline KW - Azo dye KW - Double-anode KW - Microbial community KW - Series connection KW - Stacked microbial fuel cell SP - 142454 EP - 142454 JF - The Science of the total environment JO - Sci Total Environ VL - 754 N2 - In this study, two double-anode microbial fuel cells (MFCs) were connected in series for degradation of the azo dye reactive brilliant red X-3B. After the series connection, the electricity generation of one of the MFCs decreased, and the other was not affected too much. Due to the special structure in the double-anode MFC reduced the imbalanced performance between the MFC units, the occurrence of voltage reversal was limited. The removal efficiencies in two MFC reactors were not consistent after the series connection, the results showed that the MFC with the reduced electricity generation had the higher removal efficiencies, it was 12.90, 11.66, and 40.05% higher than in the MFC in which the power generation capacity was not affected after the series connection, the MFC without serial connection, and the control group, respectively. Meanwhile, the microbial communities related to the degradation of refractory organic compounds increased and related to electricity generation decreased in the MFC with the reduced electricity generation, the changes of the microbial communities were consistent with its electricity generation and the removal efficiencies. The degradation products in the effluent from two MFC units showed that had the products generated from the MFC with the reduced electricity generation had simpler structures comparing the other MFC unit. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/33254847/Limitation_of_voltage_reversal_in_the_degradation_of_azo_dye_by_a_stacked_double_anode_microbial_fuel_cell_and_characterization_of_the_microbial_community_structure_ DB - PRIME DP - Unbound Medicine ER -