Effect of operating parameters and cleaning on the performance of ceramic membranes treating partially clarified sugar cane juice

Sim, L., Shu, L., Jegatheesan, V., and Phong , D.D. (2009) Effect of operating parameters and cleaning on the performance of ceramic membranes treating partially clarified sugar cane juice. Separation Science and Technology, 44 (15). pp. 3506-3537.

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Abstract

The performance of ceramic membranes with pore sizes of 0.05 and 0.10 µm in purifying limed and partially clarified sugar cane juice was investigated under different operating conditions. From various operating conditions and strategies, switching off the permeate for 5 seconds for every 5 minutes (S5sT5 m) by an automated control valve provided higher flux. From the three pH experiments conducted on the 0.05 µm membrane, the best performance was observed at a pH of 7.5. Amongst the four fouling models tested, the cake filtration model fitted the performance of both membranes with higher accuracy at a transmembrane pressure of 0.5 bar. Filtering the cane juice through the membrane reduced the turbidity by 99.7%, color by 15%, and the starch concentration by 80% as well as increased the purity by 1.4%. The effective cleaning chemical composition from experimental results showed that 1% NaOH and 3000 ppm NaOCl solution performed the best but only for the experiments that were treating limed and partially clarified juice at pH 7.5.

Item ID: 11213
Item Type: Article (Research - C1)
ISSN: 1520-5754
Keywords: ceramic membrane; membrane fouling; purity rise; sugar cane juice; transmembrane pressure (TMP)
Date Deposited: 31 May 2010 04:40
FoR Codes: 09 ENGINEERING > 0904 Chemical Engineering > 090404 Membrane and Separation Technologies @ 50%
09 ENGINEERING > 0907 Environmental Engineering > 090701 Environmental Engineering Design @ 50%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970110 Expanding Knowledge in Technology @ 100%
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