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Pore design and engineering for filters and membranes

journal contribution
posted on 24.01.2012 by Richard Holdich, S.R. Kosvintsev, Iain W. Cumming, Sergey Zhdanov
In filtration, the concept of pore size is not easy to define. In microfiltration, there are numerous advantages in employing a surface filtering membrane, rather than one relying on depth filtration mechanisms from a tortuous pore flow channel. Modern manufacturing techniques provide means to produce surface filtering membranes. For filtration, it is shown that a suitable pore design is an array of long thin slots. An analysis of fluid flow through the slots suggests that a short slot is adequate, but experimental data with suspended material indicates that slot length is important. Using long slots and careful control of the flow through the membrane it is possible to filter deforming particles such as oil drops from water.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Citation

HOLDICH, R.G. ... et al, 2006. Pore design and engineering for filters and membranes. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 364 (1838), pp. 161 - 174

Publisher

© The Royal Society

Version

VoR (Version of Record)

Publication date

2006

Notes

This article is closed access, it was published in the journal Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences [© The Royal Society]. The definitive version is available at: http://rsta.royalsocietypublishing.org/content/364/1838/161.full

ISSN

1364-503X;1471-2962

Language

en

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