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    A novel catalytic ceramic membrane fabricated with CuMn2O4 particles for emerging UV absorbers degradation from aqueous and membrane fouling elimination

    Access Status
    Fulltext not available
    Authors
    Guo, Y.
    Song, Z.
    Xu, B.
    Li, Y.
    Qi, F.
    Croue, Jean-Philippe
    Yuan, D.
    Date
    2018
    Type
    Journal Article
    
    Metadata
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    Citation
    Guo, Y. and Song, Z. and Xu, B. and Li, Y. and Qi, F. and Croue, J. and Yuan, D. 2018. A novel catalytic ceramic membrane fabricated with CuMn2O4 particles for emerging UV absorbers degradation from aqueous and membrane fouling elimination. Journal of Hazardous Materials. 344: pp. 1229-1239.
    Source Title
    Journal of Hazardous Materials
    DOI
    10.1016/j.jhazmat.2017.11.044
    ISSN
    0304-3894
    School
    Curtin Water Quality Research Centre
    URI
    http://hdl.handle.net/20.500.11937/60479
    Collection
    • Curtin Research Publications
    Abstract

    A novel catalytic ceramic membrane (CM) for improving ozonation and filtration performance was fabricated by surface coating CuMn2O4 particles on a tubular CM. The degradation of ultraviolet (UV) absorbers, reduction of toxicity, elimination of membrane fouling and catalytic mechanism were investigated. The characterization results suggested the particles were well-fixed on membrane surface. The modified membrane showed improved benzophenone-3 removal performance (from 28% to 34%), detoxification (EC50 as 12.77%) and the stability of catalytic activity. In the degradation performance of model UV absorbers, the developed membrane significantly decreased the UV254 and DOC values in effluent. Compared with a virgin CM, this CM ozonation increased water flux as 29.9% by in-situ degrade effluent organic matters. The CuMn2O4 modified membrane enhanced the ozone self-decompose to generate O2− and initiated the chain reaction of ozone decomposition, and subsequently reacted with molecule ozone to produce OH. Additionally, CM was able to promote the interaction between ozone and catalyst/organic chemicals to form H2O2 that promoted the formation of OH. This catalytic ceramic membrane combining with ozonation showed potential applications in emerging pollutant degradation and membrane fouling elimination, and acted as a novel ternary technology for wastewater treatment and water reuse.

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