Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.watres.2009.12.038
Title: Characterisation of initial fouling in aerobic submerged membrane bioreactors in relation to physico-chemical characteristics under different flux conditions
Authors: Ng, T.C.A. 
Ng, H.Y. 
Keywords: Confocal laser scanning microscope (CLSM)
Excitation-emission matrix (EEM)
Extracellular polymeric substances (EPS)
Soluble microbial products (SMP)
Submerged membrane bioreactor (sMBR)
Issue Date: Apr-2010
Citation: Ng, T.C.A., Ng, H.Y. (2010-04). Characterisation of initial fouling in aerobic submerged membrane bioreactors in relation to physico-chemical characteristics under different flux conditions. Water Research 44 (7) : 2336-2348. ScholarBank@NUS Repository. https://doi.org/10.1016/j.watres.2009.12.038
Abstract: The initial fouling characteristics of aerobic submerged membrane bioreactors (MBRs) were analysed under different flux conditions. Physico-chemical analyses of the mixed liquor hinted that carbohydrates were more important to membrane fouling than proteins. However, this contrasted with the characterisation of foulants on the membrane surfaces. Micro-structural analyses of the foulants on the membrane surfaces showed that the dominant foulants were different under different flux conditions. Membrane fouling occurred through a biofilm-dominated process under lower flux conditions, but the mechanism shifted towards a non-biofilm, organic fouling process as the flux was increased. In spite of the differences in fouling mechanisms, it was found that the protein fraction on the membrane surfaces, in the initial stages of MBR operations, had the greatest impact in the rise of transmembrane pressure. © 2010 Elsevier Ltd. All rights reserved.
Source Title: Water Research
URI: http://scholarbank.nus.edu.sg/handle/10635/67621
ISSN: 00431354
DOI: 10.1016/j.watres.2009.12.038
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