GAC Uptake of Per-and-Polyfluoroalkyl Substances: Assessment of RSSCT Scaling Assumptions
Citation:
Abulikemu, G., J. Pressman, D. Wahman, G. Sorial, T. Sanan, L. Haupert, J. Burkhardt, S. Smith, E. Kleiner, E. Stebel, B. Gray, C. Gastaldo, R. Taylor, E. Womack, E. Hughes, AND S. Pedigo. GAC Uptake of Per-and-Polyfluoroalkyl Substances: Assessment of RSSCT Scaling Assumptions. Presented at 20th Annual EPA Drinking Water Workshop: Small System Challenges and Solutions, Covington, KY, September 12 - 14, 2023.
Impact/Purpose:
Granular activated carbon (GAC) adsorption is well studied for per-and-polyfluoroalkyl substances (PFAS) treatment. However, there is a lack of systematicand controlled studies conducted at drinking water relevant conditions. This presentation will cover USEPA research to evaluate the effect of multiplefactors, including the properties of GAC, PFAS, and various water quality conditions. Research findings offer a clearer understanding of PFAS adsorptionacross drinking water matrices, providing a quantitative basis for generating more accurate RSSCT and mathematical modeling predictions of full-scaleGAC treatment performance.
Description:
Granular activated carbon (GAC) adsorption is well studied for per-and-polyfluoroalkyl substances (PFAS) treatment. However, there is a lack of systematic and controlled studies conducted at drinking water relevant conditions. This presentation will cover USEPA research to evaluate the effect of multiple factors, including the properties of GAC, PFAS, and various water quality conditions. Research findings offer a clearer understanding of PFAS adsorption from drinking water matrices, providing a quantitative basis for using mathematical models to help customize and optimize GAC treatment units for specific conditions and treatment goals.