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

Muthukumaran, Shobha, Yang, K, Seuren, A, Kentish, Sandra E, Ashokkumar, Muthupandian, Stevens, Geoffrey W and Grieser, Franz (2004) The use of ultrasonic cleaning for ultrafiltration membranes in the dairy industry. Separation and Purification Technology, 39 (1-2). pp. 99-107. ISSN 1383-5866, 1873-3794

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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 showthat 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. © 2004 Elsevier B.V. All rights reserved.

Item Type: Article
Additional Information:

Originally presented at the 9th APPChE Conference, September 2002 , Christchurch, New Zealand

Uncontrolled Keywords: ResPubID19484. whey ultrafiltration, dairy, ultrasonics, membrane cleaning, whey processing, UF, cleaning, dairy industry, APPChE Conference
Subjects: Current > FOR Classification > 0701 Agriculture, Land and Parks Management
Current > FOR Classification > 0908 Food Sciences
Historical > Faculty/School/Research Centre/Department > School of Engineering and Science
Depositing User: VUIR
Date Deposited: 16 Dec 2011 06:23
Last Modified: 10 Mar 2015 05:42
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Citations in Scopus: 125 - View on Scopus

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