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The efficacy of soil washing for the remediation of per- and poly-fluoroalkyl substances (PFASs) in the field.
Grimison, Charles; Knight, Emma R; Nguyen, Thi Minh Hong; Nagle, Nathan; Kabiri, Shervin; Bräunig, Jennifer; Navarro, Divina A; Kookana, Rai S; Higgins, Christopher P; McLaughlin, Michael J; Mueller, Jochen F.
  • Grimison C; Ventia Services Pty Limited, Level 8, 80 Pacific Highway, North Sydney, New South Wales, Australia. Electronic address: charles.grimison@ventia.com.
  • Knight ER; Queensland Alliance for Environmental Health Sciences, The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland, Australia. Electronic address: emma.knight1@uq.edu.au.
  • Nguyen TMH; Queensland Alliance for Environmental Health Sciences, The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland, Australia.
  • Nagle N; Ventia Services Pty Limited, Level 8, 80 Pacific Highway, North Sydney, New South Wales, Australia.
  • Kabiri S; School of Agriculture, Food and Wine, Faculty of Sciences, Engineering and Technology, The University of Adelaide, PMB 1 Waite Campus, Glen Osmond, South Australia, Australia.
  • Bräunig J; Queensland Alliance for Environmental Health Sciences, The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland, Australia.
  • Navarro DA; Commonwealth Scientific and Industrial Research Organisation (CSIRO), PMB 2 Land and Water, Waite Campus, South Australia, Australia.
  • Kookana RS; Commonwealth Scientific and Industrial Research Organisation (CSIRO), PMB 2 Land and Water, Waite Campus, South Australia, Australia.
  • Higgins CP; Queensland Alliance for Environmental Health Sciences, The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland, Australia; Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO 80401, United States.
  • McLaughlin MJ; School of Agriculture, Food and Wine, Faculty of Sciences, Engineering and Technology, The University of Adelaide, PMB 1 Waite Campus, Glen Osmond, South Australia, Australia.
  • Mueller JF; Queensland Alliance for Environmental Health Sciences, The University of Queensland, 20 Cornwall Street, Woolloongabba, Queensland, Australia.
J Hazard Mater ; 445: 130441, 2023 03 05.
Article en En | MEDLINE | ID: mdl-36462244
ABSTRACT
This paper aims to describe the performance of a soil washing plant (SWP) for remediating a per- and poly-fluoroalkyl substances (PFASs)-contaminated soil with a high clay content (61%). The SWP used both physical and chemical processes; fractionation of the soil particles by size and partitioning of PFASs into the aqueous phase to remove PFASs from the soil. Contaminated water was treated in series with granulated activated carbon (GAC) and ion-exchange resin and reused within the SWP. Approximately 2200 t (dry weight) of PFAS-contaminated soil was treated in 25 batches of 90 t each, with a throughput of approximately 11 t soil/hr. Efficiency of the SWP was measured by observed decreases in total and leachable concentrations of PFASs in the soil. Average removal efficiencies (RE) were up to 97.1% for perfluorocarboxylic acids and 94.9% for perfluorosulfonic acids. REs varied among different PFASs depending on their chemistry (functional head group, carbon chain length) and were independent of the total PFAS concentrations in each soil batch. Mass balance analysis found approximately 90% of the PFAS mass in the soil was transferred to the wash solution and > 99.9% of the PFAS mass in the wash solution was transferred onto the GAC without any breakthrough.
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Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Fluorocarburos Idioma: En Año: 2023 Tipo del documento: Article

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Contaminantes Químicos del Agua / Fluorocarburos Idioma: En Año: 2023 Tipo del documento: Article