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Coagulation/flocculation of per- and polyfluoroalkyl substances (PFAS) in drinking water treatment

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F22%3A00560376" target="_blank" >RIV/61388971:_____/22:00560376 - isvavai.cz</a>

  • Alternative codes found

    RIV/67985874:_____/22:00560376

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Coagulation/flocculation of per- and polyfluoroalkyl substances (PFAS) in drinking water treatment

  • Original language description

    A group of pollutants denoted as per- and polyfluoroalkyl substances (PFAS), that were detected in both surface and groundwater, currently comprises more than 4,700 identified compounds (Lim, 2019). Their structure consists of a per- or polyfluorinated hydrocarbon chain forming the hydrophobic part of the molecule and a functional group that forms a hydrophilic part. Depending on the type of a functional group, PFAS can be divided into sulfonates, carboxylates, sulfonamides, phosphonates, acrylates, acetates and other minor groups. These substances are nowadays ubiquitous in the environment. In general, they are considered highly persistent in nature. However, under suitable environmental conditions, some of them may degrade due to the presence of highly polar functional groups. The intermediates or final products of the first degradation step are less or non-polar. These are not readily (bio) degradable and can accumulate in the environment. Current technologies are not able to remove PFAS from drinking water efficiently (Rahman et al., 2014). This work investigates coagulation/flocculation of selected PFAS (perfluorooctanoic acid – PFOA, perfluorooctane sulfonate – PFOS, pentafluorobenzoic acid – PFBA, perfluorobutane sulfonate – PFBS) with an aim to optimize the process for maximum PFAS removal and to describe the coagulation mechanisms.

  • Czech name

  • Czech description

Classification

  • Type

    O - Miscellaneous

  • CEP classification

  • OECD FORD branch

    10503 - Water resources

Result continuities

  • Project

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2022

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů