Identification and characterisation of biofilm formed on membrane bio-reactor

Aryal, R., Legegue, J., Shon, H. K., Vigneswaran, S., Heran, M. and Grasmick, A. (2009) Identification and characterisation of biofilm formed on membrane bio-reactor. Separation and Purification Technology, 67 1: 86-94. doi:10.1016/j.seppur.2009.03.031


Author Aryal, R.
Legegue, J.
Shon, H. K.
Vigneswaran, S.
Heran, M.
Grasmick, A.
Title Identification and characterisation of biofilm formed on membrane bio-reactor
Journal name Separation and Purification Technology   Check publisher's open access policy
ISSN 1383-5866
1873-3794
Publication date 2009-05-18
Sub-type Article (original research)
DOI 10.1016/j.seppur.2009.03.031
Volume 67
Issue 1
Start page 86
End page 94
Total pages 9
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Language eng
Formatted abstract
Experiments were conducted in a laboratory scale membrane bio-reactor (MBR) system equipped with a side stream flat sheet membrane. Six runs lasting different durations (2, 4, 6, 9, 15 and 20 days) were conducted at an aeration rate of 2 m3 h−1 m−2 to understand the temporal variation of chemistry of foulant that attached on the membrane surface. The foulant attached on the membrane surface was extracted with 0.5% (v/v) NaOH solution and the extract was analysed using fluorescent spectroscopy and size exclusion chromatography. Variation of low- and high-molecular weight substances with evolution of time was compared. The results showed that the nature of foulant changed with the evolution of time. Four runs conducted for a short duration (2, 4, 6 and 9 days), low-molecular weight substances were dominant in the foulant whereas for long duration runs (15 and 20 days), high-molecular weight substances were mainly observed. Moreover, the foulant close to the membrane surface contained mainly protein and soluble microbial by-products.
Keyword Foulant
Fluorescence
Membrane bio-reactor
Microbial by-products
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: ERA 2012 Admin Only
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Created: Fri, 10 Feb 2012, 12:01:46 EST by Dr Rupak Aryal on behalf of Advanced Water Management Centre