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Transparent Exopolymer Particles in Drinking Water Treatment—A Brief Review

Author

Listed:
  • Jianchao Shi

    (School of Civil Engineering, Yantai University, Yantai 264005, China)

  • Yongrui Yang

    (School of Civil Engineering, Yantai University, Yantai 264005, China)

  • Qitao Yi

    (School of Civil Engineering, Yantai University, Yantai 264005, China)

  • Jin Zhang

    (School of Civil Engineering, Yantai University, Yantai 264005, China)

  • Lianxiang Wang

    (School of Civil Engineering, Yantai University, Yantai 264005, China)

Abstract

Transparent exopolymer particles (TEP) have been described as a class of particulate acidic polysaccharides, which are commonly found in various surface waters. Due to their unique physicochemical characteristics, they have recently been receiving increasing attention on their effects in water treatment. Currently, TEP are commonly known as clear, gel-like polysaccharides. This review first introduced the definition of TEP in water treatment and the relationship between TEP and algal organic matter (AOM). Further, in the review, the authors attempt to offer a holistic view and critical analysis concerning the research on TEPs in source water reservoirs, water plants and membrane treatment processes. It was clearly demonstrated in this review that the formation of TEP in source water reservoirs is largely related to water quality and phytoplankton, and the seasonal water stratification may indirectly affect the formation of TEP. In the waterworks, the relationship between TEP and water treatment process is mutual and there is limited research on this relationship. Finally, the mechanism of TEP-induced membrane fouling and the effect of alleviating TEP-induced membrane fouling is discussed in this review. The TEP removed by ultrafiltration can be recombined after membrane, and the recombination mechanism may be an important way to reduce reverse osmosis membrane contamination.

Suggested Citation

  • Jianchao Shi & Yongrui Yang & Qitao Yi & Jin Zhang & Lianxiang Wang, 2021. "Transparent Exopolymer Particles in Drinking Water Treatment—A Brief Review," IJERPH, MDPI, vol. 18(23), pages 1-11, November.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:23:p:12344-:d:686867
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    References listed on IDEAS

    as
    1. Wei-Chun Chin & Mónica V. Orellana & Pedro Verdugo, 1998. "Spontaneous assembly of marine dissolved organic matter into polymer gels," Nature, Nature, vol. 391(6667), pages 568-572, February.
    2. Jian-Chao Shi & Ting-Lin Huang & Gang Wen & Fei Liu & Xiao-Peng Qiu & Bao-Shan Wang, 2016. "The Variation Characteristic of Sulfides and VOSc in a Source Water Reservoir and Its Control Using a Water-Lifting Aerator," IJERPH, MDPI, vol. 13(4), pages 1-13, April.
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