Power ultrasound offers an environmentally friendly approach to cleaning dairy UF membranes
journal contribution
posted on 2004-01-01, 00:00authored byShobha Muthukumaran, S Kentish, M Ashokkumar, V Vivekanand, R Mawson
Flat sheet polymeric UF membranes of 30000 MWCO were obtained from Millipore Inc. Polypropylene spacers of a 50 mil (1.3 mm) thickness were obtained from KOCH membrane systems. A single 30 cm^sup 2^ membrane sheet was sandwiched with a spacer on the feed side of a cross flow Minitan S unit (Millipore Inc). The unit was immersed in a 50 kHz ultrasonic bath that was switched on as required. All experiments used re-constituted spray-dried whey powder to foul the membrane.