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    Por favor, use este identificador para citar o enlazar este ítem:http://uvadoc.uva.es/handle/10324/23556

    Título
    Microbial community changes during different empty bed residence times and operational fluctuations in an air diffusion reactor for odor abatement
    Autor
    Rodríguez Rodríguez, Elisa
    García Encina, Pedro AntonioAutoridad UVA Orcid
    Muñoz Torre, RaúlAutoridad UVA Orcid
    Lebrero Fernández, RaquelAutoridad UVA Orcid
    Año del Documento
    2017
    Editorial
    Elsevier
    Descripción
    Producción Científica
    Documento Fuente
    Science of The Total Environment, 2017, Vol. 590–591, Pages 352–360
    Zusammenfassung
    The succession of bacterial and fungal populations was assessed in an activated sludge (AS) diffusion bioreactor treating a synthetic malodorous emission containing H2S, toluene, butanone and alpha-pinene. Microbial community characteristics (bacterial and fungal diversity, richness, evenness and composition) and bioreactor function relationships were evaluated at different empty bed residence times (EBRTs) and after process fluctuations and operational failures (robustness test). For H2S, butanone and toluene, the bioreactor showed a stable and efficient abatement performance regardless of the EBRT and fluctuations applied, while low alpha-pinene removals were observed. While no clear positive or negative relationship between community characteristics and bioreactor functions was observed, ecological parameters such as evenness and community dynamics seemed to be of importance for maintaining reactor stability. The optimal degree of evenness of the inoculum likely contributed to the high robustness of the system towards the fluctuations imposed. Actinobacteria, Proteobacteria and Fungi (Hypocreales, Chaeatothyriales) were the most abundant groups retrieved from the AS system with a putative key role in the degradation of butanone and toluene. Typical H2S and alpha-pinene degraders were not retrieved from the system. The inoculation of P. fluorescens, a known alpha-pinene degrader, to the system did not result in the enhancement of the degradation of this compound. This strain was likely outcompeted by the microorganisms already adapted to the AS environment.
    Revisión por pares
    SI
    DOI
    10.1016/j.scitotenv.2017.01.161
    Patrocinador
    Ministerio de Economía, Industria y Competitividad (CTQ2007-64324, 18ISMW)
    Junta de Castilla y Leon (UIC 476 71)
    Version del Editor
    http://www.sciencedirect.com/science/article/pii/S004896971730178X
    Idioma
    eng
    URI
    http://uvadoc.uva.es/handle/10324/23556
    Derechos
    openAccess
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    • DEP48 - Artículos de revista [265]
    • GTA - Artículos de revista [41]
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