Polymer Supported Carbon for Safe and Effective Remediation of PFOA- and PFOS-Contaminated Water

Nicholas A. Lundquist, Martin J. Sweetman, Kymberley R. Scroggie, Max J.H. Worthington, Louisa J. Esdaile, Salah F.K. Alboaiji, Sally E. Plush, John D. Hayball, Justin M. Chalker

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)

    Abstract

    Powdered activated carbon (PAC) is an economical sorbent for removing micropollutants from water, but it generates hazardous dust that is flammable and a respiration hazard. Additionally, the fine particles of PAC can cake and block filters and membranes, complicating its use in continuous processes. In this study, we present a sulfur polymer support for PAC that overcomes these problems. The blend of the sulfur polymer and PAC generates low dust and it does not block filters. The utility of the sorbent is demonstrated in the remediation of water contaminated with perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), persistent micropollutants that currently threaten water safety worldwide. Fundamental discoveries of PFOA self-assembly are also reported, as well as testing on a field sample of contaminated surface water.

    Original languageEnglish
    Pages (from-to)11044-11049
    Number of pages6
    JournalACS Sustainable Chemistry and Engineering
    Volume7
    Issue number13
    DOIs
    Publication statusPublished - 3 Jun 2019

    Keywords

    • Activated carbon
    • Dust control
    • Inverse vulcanization
    • PFAS
    • PFOA
    • PFOS
    • Sulfur polymer
    • Water purification

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