Reproducing the pressure–time signature of membrane filtration: The interplay between fouling, caking, and elasticity
KAUST Grant NumberKUK-C1-013-04
Permanent link to this recordhttp://hdl.handle.net/10754/668089
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AbstractWe develop a mathematical model of direct-flow filtration operating at constant flux to understand the pressure–time signature. We combine the effects of fluid flow with those of membrane fouling and caking to explain the gradual increase in driving pressure that is often reported. We model the periodic backflushes used to clean such membranes and show that the elasticity of the membrane may explain the limited effectiveness of these backflushes. We also consider strategies for the operation of direct-flow filtration and show that tuning the flux and rate of backflushing, as well as the membrane material structure, may allow for improvements in membrane performance.
CitationHerterich, J. G., Griffiths, I. M., & Vella, D. (2019). Reproducing the pressure–time signature of membrane filtration: The interplay between fouling, caking, and elasticity. Journal of Membrane Science, 577, 235–248. doi:10.1016/j.memsci.2018.12.073
SponsorsJGH was supported by Award No. KUK-C1-013-04, made by King Abdullah University of Science and Technology (KAUST), and the Bracken Bequest. IMG is grateful to the Royal Society for funding through a University Research Fellowship.
JournalJournal of Membrane Science