Fouling mechanism elucidation in membrane bioreactors by bespoke physical cleaning

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dc.contributor.authorDi Bella, G.
dc.contributor.authorDi Trapani, D.
dc.contributor.authorJudd, Simon J.
dc.date.accessioned2018-03-19T16:32:01Z
dc.date.available2018-03-19T16:32:01Z
dc.date.issued2018-02-28
dc.description.abstractCake layer deposition on a membrane surface can determine both external and internal membrane fouling through negatively affecting the total filtration resistance while exerting a positive effect as a pre-filter. Membranes are usually subjected to a periodic cake layer removal through routine physical cleaning, specifically permeate backwashing of hollow fiber membranes, or enhanced cleaning through, for example, chemically-enhanced backwashing. Physical cake layer removal is crucial for sustaining permeability, yet the effect of different physical cleaning modes remains poorly evaluated. The present work attempts to analyze physical cake layer removal through the application of specific cleaning methods and the impact of these on the subsequent resistance. The constituent contributions to the overall resistance are appraised by means of the Resistances In-Series model, with the aim of producing a robust protocol for quantifying these discrete contributors. The results, based in part on published data, show the proposed approach to reliably determine the relative contribution of the different resistance components to within 0.1 · 1012 m−1 across a range of different bench and pilot-scale plants, confirming the resilience of the method.en_UK
dc.identifier.citationDi Bella G, Di Trapani D, Judd S. (2018) Fouling mechanism elucidation in membrane bioreactors by bespoke physical cleaning, Separation and Purification Technology, Volume 199, June 2018, pp. 124-133en_UK
dc.identifier.issn1383-5866
dc.identifier.urihttp://dx.doi.org/10.1016/j.seppur.2018.01.049
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/13102
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.subjectFilter cakeen_UK
dc.subjectFoulingen_UK
dc.subjectBackwashingen_UK
dc.subjectPhysical cleaningen_UK
dc.subjectResistanceen_UK
dc.titleFouling mechanism elucidation in membrane bioreactors by bespoke physical cleaningen_UK
dc.typeArticleen_UK

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