Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/59713
Título
Simultaneous production of biogas and volatile fatty acids through anaerobic digestion using cereal straw as substrate
Autor
Año del Documento
2023
Editorial
Elsevier
Descripción
Producción Científica
Documento Fuente
Environmental Technology & Innovation, 2023, vol. 31, 103215
Résumé
Cereal straw is one of the most abundant wastes worldwide, with 30.000 million tons produced per year. Bioconversion of this residual material into carboxylates by anaerobic digestion could potentially replace conventional production based on fossil feedstocks (oil). In this work, fundamental issues of this bioconversion have been explored, including: different kinds of straw (wheat, barley and rye), biomass size reduction, mass balances and modelling of the different steps of the digestion. Under optimum conditions, 44% of the raw material was effectively converted into VFAs (mainly acetate) when barley was used as substrate. Wheat and rye straw presented lower conversion rates due to the higher lignin content compared to barley straw. According to the modelling proposed, methanogenesis and hydrolysis presented very similar reaction rates, which resulted in a simultaneous production of VFAs and biogas. In view of these results, a process integration is proposed where biogas covers the thermal needs of the biotransformation of barley biomass into VFAs.
Materias (normalizadas)
Reciclaje (Residuos, etc.)
Biomasa
Renewable and Green Energy
Materias Unesco
31 Ciencias Agrarias
3106 Ciencia Forestal
Palabras Clave
Biogas
Volatile fatty acids
Lignocellulosic substrate
Biogás
Ácidos grasos volátiles
Sustrato lignocelulósico
ISSN
2352-1864
Revisión por pares
SI
Patrocinador
Junta de Castilla León - EU-FEDER (CLU 2017-09 y CL-EI-2021-07)
Ministerio de Ciencia e innovación - Agencia Estatal de Investigación (PID2020-114918RB-I00)
LIFE program through LIFE SMART AgroMobility (LIFE19 CCM/ES/001206)
Ministerio de Ciencia e innovación - Agencia Estatal de Investigación (PID2020-114918RB-I00)
LIFE program through LIFE SMART AgroMobility (LIFE19 CCM/ES/001206)
Propietario de los Derechos
© 2023 The Authors
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
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