Implications of short and long term critical flux experiments for laboratory-scale MBR operations

Navaratna, Dimuth, and Jegatheesan, Veeriah (2011) Implications of short and long term critical flux experiments for laboratory-scale MBR operations. Bioresource Technology, 102 (9). pp. 5361-5369.

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Abstract

This paper evaluates the critical flux obtained by different techniques including tests with different flux step lengths (20 and 40 min and 7 days) and modes of operation (continuous and intermittent) under low and high MLSS concentrations. The paper also analyses a couple of long-term tests (flow rate of 40 and 20 L/day) to obtain the time required to reach the critical flux experimentally and compares those values with the results obtained numerically from a mathematical model. It was found that intermittent mode with membrane relaxation was useful in controlling the fouling of membrane and in restoring the membrane from fouling at lower MLSS.

Item ID: 21800
Item Type: Article (Refereed Research - C1)
Keywords: critical flux, extra-cellular polymeric substances (EPS), intermittent permeate suction, membrane bioreactors (MBR), trans-membrane pressure (TMP)
ISSN: 1873-2976
Date Deposited: 16 May 2012 06:14
FoR Codes: 09 ENGINEERING > 0904 Chemical Engineering > 090404 Membrane and Separation Technologies @ 100%
SEO Codes: 96 ENVIRONMENT > 9609 Land and Water Management > 960912 Urban and Industrial Water Management @ 100%
Citation Count from Web of Science Web of Science 2
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