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 (Research - C1) |
| ISSN: | 1873-2976 |
| Keywords: | critical flux, extra-cellular polymeric substances (EPS), intermittent permeate suction, membrane bioreactors (MBR), trans-membrane pressure (TMP) |
| 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% |
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