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    Tratamiento de agua residual doméstica mediante un reactor RAFA y una celda microbiana de combustible (Treatment of domestic wastewater in a UASB reactor and a microbial fuel cell) (2016)

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    Type of Content
    Journal Article
    UC Permalink
    http://hdl.handle.net/10092/17396
    
    Publisher's DOI/URI
    https://doi.org/10.20937/RICA.2016.32.03.02
    
    Publisher
    University of Canterbury. Civil and Natural Resources Engineering
    Collections
    • Engineering: Journal Articles [1528]
    Authors
    Martínez-Santacruz, C.Y.
    Herrera-López, D.
    Gutiérrez-Hernández, R.F.
    Bello-Mendoza, R.
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    Abstract

    The performance of a system consisting of an up-flow anaerobic sludge blanket (UASB) reactor and a microbial fuel cell (MFC) for the treatment of low-strength wastewater and the recovery of energy was evaluated. The UASB reactor (1 L) was continuously fed with raw domestic wastewater under hydraulic retention times (HRT) of 12 and 6 h. The MFC (250 mL) was operated in batch mode and fed with either raw wastewater (HRT = 12 h) or the effluent from the UASB reactor (HRT = 6 h). It was found that the removal of organic matter by the coupled UASB–MFC system (88 % chemical oxygen demand (COD), 75 % total organic carbon (TOC) and 79 % total suspended solids (TSS)) was higher than the levels obtained by the UASB reactor (76 % COD, 66 % TOC and 73 % TSS) and the MFC (60 % COD, 53 % TOC and 40 % TSS) when these were operated individually. The highest power density obtained in the MFC was 176 mW/m2 with 1000 Ω resistance, whereas the coulombic efficiency was 8 %. The UASB-MFC system proved to be a good alternative for the treatment of wastewater and the simultaneous generation of electricity even under substrate limiting conditions, such as low concentration of organic matter in the influent.

    Citation
    Martínez-Santacruz, C.Y., Herrera-López, D., Gutiérrez-Hernández, R.F., Bello-Mendoza, R. (2016) Tratamiento de agua residual doméstica mediante un reactor RAFA y una celda microbiana de combustible (Treatment of domestic wastewater in a UASB reactor and a microbial fuel cell). Revista Internacional de Contaminación Ambiental, 32(3), pp. 267-279.
    This citation is automatically generated and may be unreliable. Use as a guide only.
    ANZSRC Fields of Research
    09 - Engineering::0904 - Chemical Engineering::090409 - Wastewater Treatment Processes
    Rights
    https://hdl.handle.net/10092/17651

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