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Occurrence and fate of microplastics at two different drinking water treatment plants within a river catchment

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    SYSNO ASEP0524950
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleOccurrence and fate of microplastics at two different drinking water treatment plants within a river catchment
    Author(s) Pivokonský, Martin (UH-J) SAI, ORCID, RID
    Pivokonská, Lenka (UH-J) SAI, ORCID, RID
    Novotná, Kateřina (UH-J) SAI, ORCID, RID
    Čermáková, Lenka (UH-J) RID, ORCID, SAI
    Klimtová, M. (CZ)
    Article number140236
    Source TitleScience of the Total Environment. - : Elsevier - ISSN 0048-9697
    Roč. 741, November (2020)
    Number of pages11 s.
    Publication formOnline - E
    Languageeng - English
    CountryNL - Netherlands
    Keywordscoagulation-flocculation ; deep-bed filtration ; granular activated carbon ; microplastics ; sedimentation ; water treatment
    Subject RIVDJ - Water Pollution ; Quality
    OECD categoryEnvironmental sciences (social aspects to be 5.7)
    Method of publishingLimited access
    Institutional supportUH-J - RVO:67985874
    UT WOS000568813100015
    EID SCOPUS85086895917
    DOI10.1016/j.scitotenv.2020.140236
    AnnotationMicroplastics (MPs) are emerging globally distributed pollutants of aquatic environments, and little is known about their fate at drinking water treatment plants (DWTPs), which provide a barrier preventing MPs from entering water for human consumption. This study investigated MPs ≥ 1 μm in raw and treated water of two DWTPs that both lie on the same river, but the local quality ofwater and the treatment technology applied differ. In the case of the more complex DWTP, MPs were analysed at 4 additional sampling sites along the treatment chain. The content of MPs varied greatly between the DWTPs. There were 23 ± 2 and 14 ± 1 MPs L−1 in raw and treated water, respectively, at one DWTP, and 1296 ± 35 and 151 ± 4 MPs L−1 at the other. Nevertheless, MPs comprised only a minor proportion (b0.02%) of all detected particles at both DWTPs. With regard to size and shape of MPs, the majority (N70%) were smaller than 10 μm, and only fragments and fibres were found, while fragments clearly prevailed. The most frequently occurring materials were cellulose acetate, polyethylene terephthalate, polyvinyl chloride, polyethylene, and polypropylene. Much higher total removal of MPs was achieved at the DWTP with a higher initial MP load and more complicated treatment (removal of 88% versus 40%), coagulation-flocculation-sedimentation, deep-bed filtration through clay-based material, and granular activated carbon filtration contributed to MP elimination by 62%, 20%, and 6%, respectively. Additionally, results from this more complex DWTP enabled to observe relationships between the removal efficiency and size and shape of MPs, particularly in the case of the filtration steps.
    WorkplaceInstitute of Hydrodynamics
    ContactSoňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003
    Year of Publishing2021
    Electronic addresshttps://www.sciencedirect.com/science/article/pii/S0048969720337578
Number of the records: 1