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The role of caking in optimising the performance of a concertinaed ceramic filtration membrane

Pereira, V; Dalwadi, M; Griffiths, I; (2022) The role of caking in optimising the performance of a concertinaed ceramic filtration membrane. Physical Review Fluids (In press). Green open access

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Abstract

Membrane filtration is a process of separating particles from fluids. Over time, particles are trapped within the membrane structure and on the membrane surface, forming a cake. In this paper, we develop a mathematical model for the transient blocking dynamics in a concertinaed filtration device composed of angled porous membranes and dead-ends. We examine how the inclusion of particles affects the flow dynamics, and we uncover potential inaccuracies in relying on flux–throughput curves to distinguish between caking and internal blocking dynamics. Moreover, we show that optimal filtration performance strongly depends on both the performance metric and the membrane configuration. Finally, to optimise the use of membrane area, we introduce a method for deriving a non-uniform permeance that ensures constant initial cake growth.

Type: Article
Title: The role of caking in optimising the performance of a concertinaed ceramic filtration membrane
Open access status: An open access version is available from UCL Discovery
Publisher version: https://journals.aps.org/prfluids/accepted/c2070S8...
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Mathematics
URI: https://discovery.ucl.ac.uk/id/eprint/10135055
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