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Título
Long-term open circuit microbial electrosynthesis system promotes methanogenesis
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Journal of Energy Chemistry
Número de la revista
2
Cita Bibliográfica
Mateos, R., Escapa, A., San-Martín, M. I., De Wever, H., Sotres, A., & Pant, D. (2020). Long-term open circuit microbial electrosynthesis system promotes methanogenesis. Journal of Energy Chemistry, 41, 3-6. https://doi.org/10.1016/J.JECHEM.2019.04.020
Editorial
Elsevier
Fecha
2020-02-15
ISSN
2095-4956
Resumen
[EN] Microbial electrosynthesis (MES) can potentially provide a mean for storing renewable energy surpluses as chemical energy. However, the fluctuating nature of these energy sources may represent a threat to MES, as the microbial communities that develop on the biocathode rely on the continuous existence of a polarized electrode. This work assesses how MES performance, product generation and microbial community evolution are affected by a long-period (6 weeks) power off (open circuit). Acetogenic and H2-producing bacteria activity recovered after reconnection. However, few days later syntrophic acetate oxidation bacteria and H2-consuming methanogens became dominant, producing CH4 as the main product, via electromethanogenesis and the syntrophic interaction between eubacterial and archaeal communities which consume both the acetic acid and the hydrogen present in the cathode environment. Thus, the system proved to be resilient to a long-term power interruption in terms of electroactivity. At the same time, these results demonstrated that the system could be extensively affected in both end product generation and microbial communities.
Materia
Palabras clave
Peer review
SI
ID proyecto
- info:eu-repo/grantAgreement/MINECO/Programa Estatal de I+D+I Orientada a los Retos de la Sociedad/CTQ2015-68925-R/ES/INTEGRACION DE PROCESOS ELECTROQUIMICOS Y BIOELECTROQUIMICOS PARA LA MEJORA DE LA DIGESTION ANAEROBIA
- info:eu-repo/grantAgreement/MECD/Programa Estatal de Promoción del Talento y su Empleabilidad/FPU14/01573/ES/
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