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SUCCESSFUL SCALE-UP AND DESTRUCTION OF PFAS IN SOIL VIA BALL MILLING
Battye, N., L. Turner, O. El-Sharnouby, D. Patch, K. Jaansalu, B. Kueper, and K. Weber.
Real Property Institute of Canada Federal Contaminated Sites Regional Workshop, 4-5 June, Halifax, NS, 25 slides, 2019
A study employed ball milling to destroy PFAS in soils from a 50+-year-old firefighting training area and silica-based sand spiked with PFAS. The mechanical action of milling promotes reactivity and surface chemistry states that are not attainable in ambient conditions. Three different-sized ball mills were used to evaluate and demonstrate scalability. A suite of 13 PFAS compounds spanning and extending beyond those with Canadian guidance values were tracked in all cases. Results demonstrated up to 97% of PFAS destruction within minutes in two types of soil, sand, and clay, and no identifiable PFAS products were produced. This patent-pending, ex situ remediation technology for PFAS-contaminated soils will be scaled on-site to develop detailed operational requirements. https://www.rpic-ibic.ca/images/2019_FCSRW/presentations/Successful_Scale-up_and_Destruction_of_PFAS_in_Soil_Via_Ball_Milling.pdf
Real Property Institute of Canada Federal Contaminated Sites Regional Workshop, 4-5 June, Halifax, NS, 25 slides, 2019
A study employed ball milling to destroy PFAS in soils from a 50+-year-old firefighting training area and silica-based sand spiked with PFAS. The mechanical action of milling promotes reactivity and surface chemistry states that are not attainable in ambient conditions. Three different-sized ball mills were used to evaluate and demonstrate scalability. A suite of 13 PFAS compounds spanning and extending beyond those with Canadian guidance values were tracked in all cases. Results demonstrated up to 97% of PFAS destruction within minutes in two types of soil, sand, and clay, and no identifiable PFAS products were produced. This patent-pending, ex situ remediation technology for PFAS-contaminated soils will be scaled on-site to develop detailed operational requirements. https://www.rpic-ibic.ca/images/2019_FCSRW/presentations/Successful_Scal
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