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Influence of particle size and size distribution in deep bed filtration and dynamic microfiltration

Ben Aim, R., Vigneswaran, S., Hagare, P. and Jegatheesan, V. 1997, Influence of particle size and size distribution in deep bed filtration and dynamic microfiltration, Water science and technology, vol. 36, no. 4, pp. 207-215.

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Title Influence of particle size and size distribution in deep bed filtration and dynamic microfiltration
Author(s) Ben Aim, R.
Vigneswaran, S.
Hagare, P.
Jegatheesan, V.
Journal name Water science and technology
Volume number 36
Issue number 4
Start page 207
End page 215
Total pages 9
Publisher IWA Publishing
Place of publication London, England
Publication date 1997
ISSN 0273-1223
1996-9732
Keyword(s) adhesive force
clean-bed
dynamic microfiltration
granular bed filtration
particle size
pore size
rotating membrane
size distribution
transient stage
Summary Particle size and size distribution is an important parameter in solid liquid separation process especially in granular bed filtration and in dynamic microfiltration. This paper discusses their effects on the above processes from extensive experimental data obtained. In granular bed filtration, the experimental results showed that the initial efficiency follows the pattern reported by previous experimental and theoretical studies, i.e., lower efficiency for particles which fall in the range of critical size of 1 m. However, the particle removal during the transient stage increased with an increase in particle size for the range of sizes studied. An attempt was made to quantify these effects in granular bed filtration using semi-empirical approach. In dynamic membrane filtration also, the particle size plays a major role in the retention. However, despite the relative thickness of the membrane (compared to particle size) dynamic microfiltration appears more as a sieving process; the retention is mainly related to the largest pore size.
Language eng
Field of Research 099999 Engineering not elsewhere classified
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Persistent URL http://hdl.handle.net/10536/DRO/DU:30039716

Document type: Journal Article
Collection: Faculty of Science, Engineering and Built Environment
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