Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/53601
Título
Influence of operational conditions on the performance of biogas bioconversion into ectoines in pilot bubble column bioreactors
Año del Documento
2022
Editorial
Elsevier
Descripción
Producción Científica
Documento Fuente
Bioresource Technology, 2022, vol. 358, 127398
Zusammenfassung
The application of biogas as a low-priced substrate for the production of ectoines constitutes an opportunity to decrease their production costs and to enhance the viability of anaerobic digestion. The influence of operational conditions on CH4-biogas biodegradation and on ectoines production yields was assessed in continuous pilot bubble column bioreactors. The rise in biomass concentration from 1 to 3 g L-1 resulted in a decrease in the specific ectoine content from 42±8 to 30±4 mgectoine gVSS-1. The concentration of Cu2+ and Mg2+ did not impact process performance, while the use of ammonium as N source resulted in low CH4 biodegradation and ectoine yields (13±7 mgectoine gVSS-1). The increase in CH4 content from 4.5 to 9 %v·v-1 enhanced CH4 removal efficiency. Process operation at NaCl concentrations of 3 %w·w-1 instead of 6 %w·w-1 decreased the ectoine yield to 17 mgectoine gVSS-1. Finally, Methylomicrobium buryatense was identified as the dominant species.
Palabras Clave
Biogas
Biogás
Bioreactors
Biorreactores
Ectoine
Ectoína
Hydroxyectoine
Hidroxiectoína
ISSN
0960-8524
Revisión por pares
SI
Patrocinador
Junta de Castilla y León - Fondo Europeo de Desarrollo Regional (projects CLU-2017-09 and UIC-315)
Propietario de los Derechos
© 2022 The Authors
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
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