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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/62604

    Título
    Scale-down of high-rate algae ponds systems for urban wastewater reuse
    Autor
    Gonzalo Ibrahim, Félix Gaspar
    Alonso Gómez, VíctorAutoridad UVA Orcid
    Muñoz Torre, RaúlAutoridad UVA Orcid
    Godos Crespo, Ignacio deAutoridad UVA Orcid
    Año del Documento
    2023
    Editorial
    Elsevier
    Descripción
    Producción Científica
    Documento Fuente
    Journal of Water Process Engineering, 2023, vol. 56, 104342
    Resumen
    In spite of the important environmental and operative advantages of microalgae-based wastewater treatment systems, they present a low level of implementation. Experimental validations in lab scale should reproduce conditions as close as possible to outdoor conditions. In this sense, two experimental reactors were operated under irradiation and temperature levels corresponding to summer and winter conditions found in temperate climates. The configuration of these reactors resulted in mass transfer rates (gas exchange) in the range of the values reported for industrial scale outdoor facilities. While superficial biomass productivity was in the range of previously reported experiences (between 5.7 and 22 g m−2 d−1, in winter and summer conditions, respectively), pollution removal efficiencies reached the values required for wastewater discharge: >78 % of CODt, >96 % of NH4+ and >79 % of PO43−. Unlike previous experiences, hydraulic retention time (HRT) was maintained constant (3 days) in both seasonal conditions, reaching sufficient pollution removal and biomass productivity. The pathogen concentration reached in the final effluent was compatible with the reclaimed water standards in spite of the absence of ultraviolet light in the illumination system, evidencing the relevance of the environmental conditions created by microalgae metabolism in the disinfection process. The characterization of the microbial population revealed the presence of bacteria responsible of organic matter removal, ammonia oxidation and microalgae commonly found in wastewater systems.
    Materias (normalizadas)
    Aguas residuales Depuración
    Materias Unesco
    3308.10 Tecnología de Aguas Residuales
    Palabras Clave
    Disinfection
    Down-scale
    Microalgae-based treatment
    Desinfección
    Reducir la escala
    Tratamiento a base de microalgas
    ISSN
    2214-7144
    Revisión por pares
    SI
    DOI
    10.1016/j.jwpe.2023.104342
    Patrocinador
    Regional Government of Castilla y León and the FEDER program (projects CLU 2017-09, CL-EI-2021-07 and UIC315)
    European Commission through the LIFE program through LIFE SMART AgroMobility (LIFE19 CCM/ES/001206)
    Version del Editor
    https://www.sciencedirect.com/science/article/pii/S2214714423008620?via%3Dihub
    Propietario de los Derechos
    © 2023 The Authors
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/62604
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
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    • IPS - Artículos de revista [157]
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    Universidad de Valladolid

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