Influence of carrier media physical properties on start-up of moving attached growth systems

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dc.contributor.authorDias, Joana
dc.contributor.authorBellingham, Mel
dc.contributor.authorHassan, Junaid
dc.contributor.authorBarrett, Mark
dc.contributor.authorStephenson, Tom
dc.contributor.authorSoares, Ana
dc.date.accessioned2018-11-02T10:17:46Z
dc.date.available2018-11-02T10:17:46Z
dc.date.issued2018-06-30
dc.description.abstractFive carrier media with different shapes (spherical and cylindrical), sizes, voidage and protected surface areas (112–610 m2/m3) were studied in a pilot scale moving bed biofilm reactor (MBBR). This study aimed at assessing start-up duration using biofilm formation rates. Results indicated that the spherical media required shorter periods to achieve stable biofilm formation rates associated with chemical oxygen demand (COD) (15–17 days), compared to cylindrical high surface area media (23–24 days). Protected surface area presented weaker correlations with the biofilm formation rate for COD (R2 = 0.83) and ammonia removal (R2 = 0.76). However, good correlations were observed with a combination of the media physical factors: dimensionality (Di), voidage (Voi), and hydraulic efficiency (HE) strongly correlated with biofilm formation rates for heterotrophic (R2 = 0.95) and nitrifying bacteria (R2 = 0.92). This study proposes that the media physical properties can contribute to shortening start-up, contributing to improved removal rates and fast commissioning of MBBRs.en_UK
dc.identifier.citationJoana Dias, Mel Bellingham, Junaid Hassan, et al., Influence of carrier media physical properties on start-up of moving attached growth systems. Bioresource Technology, Volume 266, Issue October, 2018, Pages 463-471en_UK
dc.identifier.cris21132473
dc.identifier.issn0960-8524
dc.identifier.urihttps://doi.org/10.1016/j.biortech.2018.06.096
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/13609
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectBiofilm formation rateen_UK
dc.subjectBiofilm detachmenten_UK
dc.subjectDimensionalityen_UK
dc.subjectMoving attached growthen_UK
dc.subjectStart-upen_UK
dc.subjectVoidageen_UK
dc.titleInfluence of carrier media physical properties on start-up of moving attached growth systemsen_UK
dc.typeArticleen_UK

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