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Sammanfattning

Uncontrolled use and disposal of per-and polyfluoroalkyl substances (PFASs) in recent decades has resulted in extensive soil and groundwater contamination, necessitating counteraction. Electrokinetic remediation (EKR) offers a promising approach to in-situ soil remediation. Two novel modifications to conventional EKR were tested for the first time in a laboratory-scale study, to explore the capacity of EKR for PFAS removal. The first modi-fication was a two-compartment setup designed for PFAS extraction from soil to an electrolyte-filled chamber. The second was a single-compartment setup designed to transport and confine contaminants in a chamber filled with granular activated carbon (GAC), thus, combining extraction with stabilisation. Electromigration varied for individual compounds, based mainly on perfluorocarbon chain length and functional group. The results indicated up to 89% concentration and extraction of n-ary sumation PFASs for the two-compartment setup, with removal efficiency reaching 99% for individual PFASs with C

Nyckelord

Electrokinetics; Treatment; PFAS; Adsorption; Soil; Groundwater

Publicerad i

Chemosphere
2022, volym: 291, nummer: Part 3, artikelnummer: 133041
Utgivare: PERGAMON-ELSEVIER SCIENCE LTD

SLU författare

Globala målen (SDG)

SDG3 God hälsa och välbefinnande

UKÄ forskningsämne

Markvetenskap

Publikationens identifierare

  • DOI: https://doi.org/10.1016/j.chemosphere.2021.133041

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/116404