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Microfiltration of deforming droplets
conference contribution
posted on 2017-07-17, 10:41 authored by Asmat Ullah, M. Naeem, Richard Holdich, Victor Starov, Sergey SemenovControl of permeate flux is important in microfiltration processes as it influences trans-membrane pressure and fouling of a membrane. Particles of vegetable oil ranging from 1 to 15 μm were passed through a 4 μm slotted pore membrane at various flux rates. Various intensities of shear were applied parallel to the membrane by vibrating the membrane at different frequencies. At the lowest permeate flux rate (200 l m−2 hr−1) the membrane fouled because the drag force was too low to squeeze the deformable oil droplets through the membrane. At higher flux rates the drag force over the oil droplets increased and deformation, and passage, of oil droplets into the permeate was possible. Without any applied shear highest trans-membrane pressure was observed due to fouling, which could be modelled by a pore blocking model. A positive displacement pump was used in experiments which maintained nearly constant flow of permeate. Flux rates varied from 200 up to 1200 l m−2 hr−1, and the highest shear rate used was 8,000 s−1. The experimental system provided a simple technique for assessing the behaviour of the microfilter during the filtration of these deforming particles
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Chemical Engineering
Published in
Progress in Colloid and Polymer ScienceVolume
139Pages
107 - 110Citation
ULLAH, A. ...et al., 2011. Microfiltration of deforming droplets. IN: Starov, V. and Griffiths, P. (eds.) Progress in Colloid and Polymer Science, Heidelberg: Springer, pp. 107-110.Publisher
© SpringerVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2011Notes
This paper is in closed access.ISBN
9783642289736;9783642289743ISSN
0340-255XPublisher version
Book series
Progress in Colloid and Polymer Science;139Language
- en