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STABILIZATION AND SOLIDIFICATION REMEDIATION OF SOIL CONTAMINATED WITH POLY- AND PERFLUOROALKYL SUBSTANCES (PFASS)
Sorengard, M., D.B. Kleja, and L. Ahrens.
Journal of Hazardous Materials 367:639-646(2019)

A stabilization and solidification (S/S) technique was tested on aged PFAS-contaminated soil artificially spiked with 14 PFASs using 7 different additives at 2% concentration: powdered activated carbon (PAC), Rembind®, pulverized zeolite, chitosan, hydrotalcite, bentonite, and calcium chloride. By adding PAC and Rembind®, leaching of 13 out of 14 target PFASs was reduced by ~70% and 94%, respectively. Longer-chained PFASs were stabilized by 99.9% in all S/S treatments using PAC or RembindŽ. The S/S stabilization efficiency increased on average by 11-15% per CF3-moiety and was ~ 49% higher for PFSAs than PFCAs. https://ziltek.com/wp-content/uploads/2019/03/RemBind-Paper-Journal-of-Hazardous-Materials-PFAS-Sweden.pdf



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