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SORBENT AMENDMENT AS A REMEDIATION STRATEGY TO REDUCE PFAS MOBILITY AND LEACHING IN A CONTAMINATED SANDY SOIL FROM A NORWEGIAN FIREFIGHTING TRAINING FACILITY
Hale, S.E., H.P.H. Arp, G.A. Slinde, E.J. Wade, K. Bjorseth, G.D. Breedveld, B.F. Straith, et al.
Chemosphere 171:9-18(2017)

Soils were sampled from a firefighting training facility at a Norwegian airport, and total and leachable concentrations of poly- and perfluoroalkyl substances (PFASs) were quantified. PFOS was the most dominant PFAS present in all soil samples (9-2600 µg/kg). PFOS concentrations measured in leachate water ranged 1.2-212 µg/L. Different sorbents were added to the sampled soils to evaluate respective performance in reducing PFAS mobility and leaching to groundwater. Upon addition of sorbent amendment (3%), activated carbon reduced leaching by 94-99.9%, compost soil reduced leaching by 29-34%, and montmorillonite reduced leading by 28-40%. See additional information in 16 presentation slides: https://www.mn.uio.no/kjemi/english/research/projects/ICCE2017/wednesday-21.06/helga-eng-auditorium-1/hr.-10:30/1200-ase-hoiseter-icce-2017.pdf.



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