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    Assessment of mixing quality in full-scale, biogas-mixed anaerobic digestion using CFD

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    Publication date
    2018-10
    Author
    Dapelo, Davide
    Bridgeman, John
    Keyword
    Industrial-scale anaerobic digestion
    CFD
    Euler-Lagrange
    Mixing assessment
    Optimisation of performance
    Rights
    © 2018 Elsevier. Reproduced in accordance with the publisher's selfarchiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    An Euler-Lagrange CFD model is applied to a full-scale, biogas-mixed anaerobic digester to improve mixing efficiency and improve overall performance. Two quantitative mixing criteria previously adopted in anaerobic digestion (viz., uniformity index and dead volume) are critically assessed for the first time. A novel qualitative method is introduced to clarify the output of the quantitative methods. The first-ever quantitative assessment of mixing quality in full-scale, biogas-mixed anaerobic digestion is then proposed, and a strategy to improve mixing, involving the combined use of concentric nozzle manifolds at the base of the digester, is evaluated.
    URI
    http://hdl.handle.net/10454/16360
    Version
    Accepted Manuscript
    Citation
    Dapelo D and Bridgeman J (2018) Assessment of mixing quality in full-scale, biogas-mixed anaerobic digestion using CFD. Bioresource Technology. 265: 480-489.
    Link to publisher’s version
    https://doi.org/10.1016/j.biortech.2018.06.036
    Type
    Article
    Collections
    Engineering and Informatics Publications

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