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    Evolution and accumulation of organic foulants on hydrophobic and hydrophilic membrane surfaces in a submerged membrane bioreactor

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    1507_G. Matar.pdf
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    Description:
    conference paper
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    1507_pres_matar.pdf
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    Type
    Conference Paper
    Presentation
    Authors
    Matar, Gerald cc
    Gonzalez-Gil, G.
    Maab, H.
    Nunes, Suzana Pereira cc
    Vrouwenvelder, J.S.
    Saikaly, Pascal cc
    KAUST Department
    Water Desalination and Reuse Research Center (WDRC)
    Date
    2015-09-07
    Permanent link to this record
    http://hdl.handle.net/10754/581343
    
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    Abstract
    Membrane surface modification is attracting more attention to mitigate biofouling in membrane bioreactors (MBRs). Five membranes differing in chemistry and hydrophobic/hydrophilic potential were run in parallel in a lab-scale MBR under the same conditions. Membranes were sampled after 1, 10, 20 and 30 days of MBR operation with synthetic wastewater. Subsequently, accumulated organic foulants were characterised using several chemical analytical tools. Results showed similar development of organic foulants with time, illustrating that membrane surface chemistry did not affect the selection of specific organic foulants. Multivariate analysis showed that biofilm samples clustered according to the day of sampling. The composition of organic foulants shifted from protein-like substances towards humics and polysaccharides-like substances. We propose that to control biofouling in MBRs, one should focus less on the membrane surface chemistry.
    Journal
    International Water Association (IWA)
    Conference/Event name
    NOM 6 IWA Specialist Conference on Natural Organic Matter in Water
    Additional Links
    https://www.malmokongressbyra.se/kongress/download/1507_G.%20Matar.pdf
    https://www.malmokongressbyra.se/kongress/download/1507_pres_matar.pdf
    Collections
    Conference Papers; Water Desalination and Reuse Research Center (WDRC)

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