Development and Laboratory Validation of Mathematical Modeling Tools for Prediction of PFAS Transformation, Transport, and Retention in AFFF Source Areas (SERDP ER18-1149)
The Cápiro lab’s task: Coupled Abiotic and Biotic Transformation studies
Objectives: measure PFAA precursor transformation byproducts and rates resulting from natural attenuation (abiotic and biotic) in field aquifer materials under conditions typical of AFFF-contaminated sites.
1. Batch reactor experiments to examine the influence of redox conditions, reactive mineral species, and co-contaminants on PFAA precursor transformation
2. Column studies to investigate the influence of abiotic and biotic reactions on the fate and transport of PFAA precursors, PFAAs and transformation byproducts
3. Aquifer cell studies to mimic a near-surface spill of a AFFF in a multi-dimensional experimental system and quantify the resulting fate and transport of PFAS constituents
Presentations
August 2021: ACS Fall 2021 Resilience of Chemistry (Atlanta GA)
Sheng Dong Presented: “Biotransformation of 8:2 FTOH in AFFF-impacted soils under different redox conditions“
Pengfei Yan Presented: “Biotransformation of 6:2 fluorotelomer sulfonate in AFFF-impacted soil under oxic and anoxic conditions“