The use of ultrasonic cleaning for ultrafiltration membranes in the dairy industry

Muthukumaran, S., Yang, K., Seuren, A., Kentish, S., Ashokkumar, M., Stevens, G. W. and Grieser, F. 2004, The use of ultrasonic cleaning for ultrafiltration membranes in the dairy industry, Separation and purification technology, vol. 39, no. 1-2, pp. 99-107, doi: 10.1016/j.seppur.2003.12.013.

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Title The use of ultrasonic cleaning for ultrafiltration membranes in the dairy industry
Author(s) Muthukumaran, S.
Yang, K.
Seuren, A.
Kentish, S.
Ashokkumar, M.
Stevens, G. W.
Grieser, F.
Journal name Separation and purification technology
Volume number 39
Issue number 1-2
Start page 99
End page 107
Publisher Pergamon
Place of publication Oxford, England
Publication date 2004-10
ISSN 1383-5866
Keyword(s) ultrafiltration
membrane cleaning
whey processing
Summary The ultrafiltration of whey solutions is a common feature of dairy processes. However, the frequent fouling of ultrafiltration membranes and the subsequent cleaning cycle significantly affect the economics of such a process. In this work, we investigated the effect of ultrasonics on the cleaning of whey-fouled membranes and examined the variables that influence this effect. Experiments were conducted using a small single sheet membrane unit that was immersed totally within an ultrasonic bath.

Results show that the use of ultrasonics enhances the flux recovery following fouling. The extent of flux recovery is independent of the length of sonication time and increases with ultrasonic power. The use of surfactants in combination with ultrasonic irradiation shows a synergistic effect, providing a better efficiency than either cleaning process alone. Repetitive use of ultrasonic cleaning over a 1 month period does not result in any significant change in the permeate flux of a cleaned membrane, indicating that the ultrasonic treatment does not appear to damage the membrane structure itself.
Language eng
DOI 10.1016/j.seppur.2003.12.013
Field of Research 090404 Membrane and Separation Technologies
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2004, Elsevier B.V.
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