Cathodic biofouling control by microbial separators in air-breathing microbial fuel cells.
Air-breathing MFC
Biofouling elimination
Microbial separator
Niche-selective superiority
Stability and sustainability
Journal
Environmental science and ecotechnology
ISSN: 2666-4984
Titre abrégé: Environ Sci Ecotechnol
Pays: Netherlands
ID NLM: 9918453988906676
Informations de publication
Date de publication:
Jul 2023
Jul 2023
Historique:
received:
14
10
2022
revised:
06
02
2023
accepted:
13
02
2023
entrez:
16
3
2023
pubmed:
17
3
2023
medline:
17
3
2023
Statut:
epublish
Résumé
Microbial fuel cells (MFCs) incorporating air-breathing cathodes have emerged as a promising eco-friendly wastewater treatment technology capable of operating on an energy-free basis. However, the inevitable biofouling of these devices rapidly decreases cathodic catalytic activity and also reduces the stability of MFCs during long-term operation. The present work developed a novel microbial separator for use in air-breathing MFCs that protects cathodic catalytic activity. In these modified devices, microbes preferentially grow on the microbial separator rather than the cathodic surface such that biofouling is prevented. Trials showed that this concept provided low charge transfer and mass diffusion resistance values during the cathodic oxygen reduction reaction of 4.6 ± 1.3 and 17.3 ± 6.8 Ω, respectively, after prolonged operation. The maximum power density was found to be stable at 1.06 ± 0.07 W m
Identifiants
pubmed: 36923605
doi: 10.1016/j.ese.2023.100251
pii: S2666-4984(23)00016-9
pmc: PMC10009452
doi:
Types de publication
Journal Article
Langues
eng
Pagination
100251Informations de copyright
© 2023 The Authors.
Déclaration de conflit d'intérêts
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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