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A Comparison of Hydrodynamic Methods for Mitigating Particle Fouling in Submerged Membrane Filtration by Kuo-Jen Hwang; Chih-Sheng Chan; Fung-Fu Chen is a Engineering article available to read on EtoBox.

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Hydrodynamic methods are used for mitigating particle fouling and for enhancing the filtrate flux in submerged membrane filtration. In the comparison membrane blocking-cake formation filtration system, the effects of filtration pressure, aeration intensity, backwash duration and stepwise increasing pressure on the filtration resistances and filtration flux are measured and discussed. Aeration is helpful for reducing particle deposition on the membrane surface, while stepwise increasing pressure can mainly mitigate internal fouling of the membrane. Periodic backwash can significantly reduce both the resistance caused by the membrane internal fouling and by cake formation; consequently, it can effectively recover the filtrate flux. In contrast, increasing the pressure in constant pressure filtration leads the flux to be decreased due to more severe membrane blockage. According to the comparison of the long-term flux and the received filtrate volume, among these hydrodynamic methods, the periodic backwash with longer duration is the optimal strategy for the filtration.

Who reads A Comparison of Hydrodynamic Methods for Mitigating Particle Fouling in Submerged Membrane Filtration?

Author

Kuo-Jen Hwang; Chih-Sheng Chan; Fung-Fu Chen

Publisher

Chinese Electronic Periodical Services; Elsevier ; Chinese Institute of Chemical Engineers; Elsevier BV (ISSN 0368-1653)

Published

2008

Language

EN

Field

Engineering (Physical Sciences)