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    Hydraulically irreversible fouling on ceramic MF/UF membranes: comparison of fouling indices, foulant composition and irreversible pore narrowing

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    Type
    Article
    Authors
    Shang, Ran
    Vuong, Francois
    Hu, Jingyi
    Li, Sheng cc
    Kemperman, Antoine J.B.
    Nijmeijer, Kitty
    Cornelissen, Emile R.
    Heijman, Sebastiaan G.J.
    Rietveld, Luuk C.
    KAUST Department
    Water Desalination and Reuse Research Center (WDRC)
    Date
    2015-05-07
    Online Publication Date
    2015-05-07
    Print Publication Date
    2015-06
    Permanent link to this record
    http://hdl.handle.net/10754/552554
    
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    Abstract
    The application of ceramic membranes in water treatment is becoming increasing attractive because of their long life time and excellent chemical, mechanical and thermal stability. However, fouling of ceramic membranes, especially hydraulically irreversible fouling, is still a critical aspect affecting the operational cost and energy consumption in water treatment plants. In this study, four ceramic membranes with pore sizes or molecular weight cut-off (MWCO) of 0.20 μm, 0.14 μm, 300 kDa and 50 kDa were compared during natural surface water filtration with respect to hydraulically irreversible fouling index (HIFI), foulant composition and narrowing of pore size due to the irreversible fouling. Our results showed that the hydraulically irreversible fouling index (HIFI) was proportional to the membrane pore size (r2=0.89) when the same feed water was filtrated. The UF membranes showed lower HIFI values than the MF membranes. Pore narrowing (internal fouling) was found to be a main fouling pattern of the hydraulically irreversible fouling. The internal fouling was caused by monolayer adsorption of foulants with different sizes that is dependent on the size of the membrane pore.
    Citation
    Hydraulically irreversible fouling on ceramic MF/UF membranes: comparison of fouling indices, foulant composition and irreversible pore narrowing 2015 Separation and Purification Technology
    Publisher
    Elsevier BV
    Journal
    Separation and Purification Technology
    DOI
    10.1016/j.seppur.2015.04.039
    Additional Links
    http://linkinghub.elsevier.com/retrieve/pii/S1383586615002725
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.seppur.2015.04.039
    Scopus Count
    Collections
    Articles; Water Desalination and Reuse Research Center (WDRC)

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