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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/55778

    Título
    Influence of key operational parameters on biohydrogen production from fruit and vegetable waste via lactate-driven dark fermentation
    Autor
    Martínez Mendoza, Leonardo JoséAutoridad UVA
    Lebrero Fernández, RaquelAutoridad UVA Orcid
    Muñoz Torre, RaúlAutoridad UVA Orcid
    García Depraect, OctavioAutoridad UVA Orcid
    Año del Documento
    2022
    Editorial
    Elsevier
    Descripción
    Producción Científica
    Documento Fuente
    Bioresource Technology, 2022, vol. 364, 128070
    Resumo
    This study aims at investigating the influence of operational parameters on biohydrogen production from fruit-vegetable waste (FVW) via lactate-driven dark fermentation. Mesophilic batch fermentations were conducted at different pH (5.5, 6.0, 6.5, 7.0, and non-controlled), total solids (TS) contents (5, 7, and 9%) and initial cell biomass concentrations (18, 180, and 1800 mg VSS/L). Higher hydrogen yields and rates were attained with more neutral pH values and low TS concentrations, whereas higher biomass densities enabled higher production rates and avoided wide variations in hydrogen production. A marked lactate accumulation (still at neutral pH) in the fermentation broth was closely associated with hydrogen inhibition. In contrast, enhanced hydrogen productions matched with much lower lactate accumulations (even it was negligible in some fermentations) along with the acetate and butyrate co-production but not with carbohydrates removal. At pH 7, 5% TS, and 1800 mg VSS/L, 49.5 NmL-H2/g VSfed and 976.4 NmL-H2/L-h were attained.
    Palabras Clave
    Dark fermentation
    Fermentación oscura
    Hydrogen production
    Hidrógeno - Producción
    ISSN
    0960-8524
    Revisión por pares
    SI
    DOI
    10.1016/j.biortech.2022.128070
    Patrocinador
    Junta de Castilla y Leon - Fondo Europeo de Desarrollo Regional (grants CLU 2017-09, CL-EI-2021-07 and UIC 315)
    Patrocinador
    info:eu-repo/grantAgreement/EC/H2020/894515
    Version del Editor
    https://www.sciencedirect.com/science/article/pii/S0960852422014031?via%3Dihub
    Propietario de los Derechos
    © 2022 The Authors
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/55778
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
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    Influence-key-operational-parameters.pdf
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    Universidad de Valladolid

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