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    Impact of effluent organic matter on low-pressure membrane fouling in tertiary treatment

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    Type
    Article
    Authors
    Ayache, C.
    Pidou, Marc
    Croue, Jean-Philippe
    Labanowski, Jérôme
    Poussade, Yvan
    Tazi-Pain, Annie
    Keller, Jurg R.
    Gernjak, Wolfgang
    KAUST Department
    Biological and Environmental Sciences and Engineering (BESE) Division
    Environmental Science and Engineering Program
    Water Desalination and Reuse Research Center (WDRC)
    Date
    2013-05
    Permanent link to this record
    http://hdl.handle.net/10754/562745
    
    Metadata
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    Abstract
    This study aims at comparing low-pressure membrane fouling obtained with two different secondary effluents at bench and pilot-scale based on the determination of two fouling indices: the total fouling index (TFI) and the hydraulically irreversible fouling index (HIFI). The main objective was to investigate if simpler and less costly bench-scale experimentation can substitute for pilot-scale trials when assessing the fouling potential of secondary effluent in large scale membrane filtration plants producing recycled water. Absolute values for specific flux and total fouling index for the bench-scale system were higher than those determined from pilot-scale, nevertheless a statistically significant correlation (r2 = 0.63, α = 0.1) was obtained for the total fouling index at both scales. On the contrary no such correlation was found for the hydraulically irreversible fouling index. Advanced water characterization tools such as excitation-emission matrix fluorescence spectroscopy (EEM) and liquid chromatography with organic carbon detection (LC-OCD) were used for the characterization of foulants. On the basis of statistical analysis, biopolymers and humic substances were found to be the major contribution to total fouling (r2 = 0.95 and r2 = 0.88, respectively). Adsorption of the low molecular weight neutral compounds to the membrane was attributed to hydraulically irreversible fouling (r2 = 0.67). © 2013 Elsevier Ltd.
    Citation
    Ayache, C., Pidou, M., Croué, J. P., Labanowski, J., Poussade, Y., Tazi-Pain, A., … Gernjak, W. (2013). Impact of effluent organic matter on low-pressure membrane fouling in tertiary treatment. Water Research, 47(8), 2633–2642. doi:10.1016/j.watres.2013.01.043
    Sponsors
    The authors want to specifically acknowledge Veolia Environnement Research & Innovation and Seqwater for funding received through the joint "Water Recycling Research Program" with the University of Queensland and the Australian Government Department of Industry, Innovation, Science, Research and Tertiary Education for funding obtained through the FAST program (FR10025). The authors want to particularly thank Dr. Alice Antony from the University of New South Wales for performing LC-OCD analyses. The authors also would like to acknowledge Unitywater and Allconnex Water for their support by hosting the pilot trials.
    Publisher
    Elsevier BV
    Journal
    Water Research
    DOI
    10.1016/j.watres.2013.01.043
    PubMed ID
    23541121
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.watres.2013.01.043
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Environmental Science and Engineering Program; Water Desalination and Reuse Research Center (WDRC)

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