The optimisation of ultrasonic cleaning procedures for dairy fouled ultrafiltration membranes

Muthukumaran, Shobha, Kentish, Sandra E., Lalchandani, Sharan, Ashokkumar, Muthupandian, Mawson, Raymond, Stevens, Geoff W. and Grieser, Franz 2005, The optimisation of ultrasonic cleaning procedures for dairy fouled ultrafiltration membranes, Utrasonics sonochemistry, vol. 12, no. 1-2, pp. 29-35, doi: 10.1071/PY05042.

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Title The optimisation of ultrasonic cleaning procedures for dairy fouled ultrafiltration membranes
Author(s) Muthukumaran, Shobha
Kentish, Sandra E.
Lalchandani, Sharan
Ashokkumar, Muthupandian
Mawson, Raymond
Stevens, Geoff W.
Grieser, Franz
Journal name Utrasonics sonochemistry
Volume number 12
Issue number 1-2
Start page 29
End page 35
Publisher Elsevier BV
Place of publication Amsterdam, Netherlands
Publication date 2005-01
ISSN 1350-4177
Keyword(s) membrane cleaning
whey protein
Summary Ultrafiltration (UF) of whey is a major membrane based process in the dairy industry. However, commercialization of this application has been limited by membrane fouling, which has a detrimental influence on the permeation rate. There are a number of different chemical and physical cleaning methods currently used for cleaning a fouled membrane. It has been suggested that the cleaning frequency and the severity of such cleaning procedures control the membrane lifetime. The development of an optimal cleaning strategy should therefore have a direct implication on the process economics. Recently, the use of ultrasound has attracted considerable interest as an alternative approach to the conventional methods. In the present study, we have studied the ultrasonic cleaning of polysulfone ultrafiltration membranes fouled with dairy whey solutions. The effects of a number of cleaning process parameters have been examined in the presence of ultrasound and results compared with the conventional operation. Experiments were conducted using a small single sheet membrane unit that was immersed totally within an ultrasonic bath. Results show that ultrasonic cleaning improves the cleaning efficiency under all experimental conditions. The ultrasonic effect is more significant in the absence of surfactant, but is less influenced by temperature and transmembrane pressure. Our results suggest that the ultrasonic energy acts primarily by increasing the turbulence within the cleaning solution.
Language eng
DOI 10.1071/PY05042
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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