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

40 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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