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

Dapelo, Davide ORCID: 0000-0002-3442-6857 and Bridgeman, John ORCID: 0000-0001-8348-5004 (2018) Assessment of mixing quality in full-scale, biogas-mixed anaerobic digestion using CFD. BIORESOURCE TECHNOLOGY, 265. pp. 480-489.

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Official URL: http://dx.doi.org/10.1016/j.biortech.2018.06.036

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.

Item Type:	Article
Uncontrolled Keywords:	Industrial-scale anaerobic digestion, CFD, Euler-Lagrange, Mixing assessment, Optimisation of performance
Divisions:	Faculty of Science and Engineering > School of Engineering
Depositing User:	Symplectic Admin
Date Deposited:	17 May 2023 10:20
Last Modified:	17 May 2023 10:20
DOI:	10.1016/j.biortech.2018.06.036
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3170418