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This article published in Technology Networks discusses a novel, colloidal form of activated carbon that demonstrates effective, in-place removal of PFAS from groundwater.

Article highlights:

  • Why PFAS in groundwater is a daunting environmental challenge
  • Current methods for PFAS removal from groundwater
  • A novel PFAS groundwater treatment technology that is effective and lower cost than other current methods - Colloidal activated carbon passive barriers

In situ remediation with colloidal activated carbon eliminates risk of PFAS contamination in soil and groundwater at a low-cost . By coating flux zones of an aquifer with colloidal activated carbon, a permeable sorption barrier is created in situ, purifying groundwater as it passively migrates. PFAS constituents from up-gradient source zones are rapidly sorbed to the carbon and removed from the mobile dissolved phase. By removing PFAS from the mobile phase, the route of exposure to down-gradient receptors is eliminated, thereby eliminating the down-gradient public health risk associated with PFAS.

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About the Author:

REGENESIS Webinar with special guest presenter Kristen Thoreson, PhD
Vice President of Research and Development, REGENESIS
Dr. Kristen Thoreson heads the chemical research and product development program at REGENESIS. Her team is focused on developing advanced technologies for the treatment of recalcitrant compounds in mixed environmental media. She is trained as a chemist, and her graduate and post-doctorate research focused on mechanistic investigations of chlorinated ethene degradation pathways using molecular models and compound specific isotope analysis (CSIA) for both biotic and abiotic systems. She obtained her BSc in chemistry from the University of Wisconsin – La Crosse, and her PhD in inorganic chemistry from the University of Minnesota. She also spent time as a postdoctoral associate at the Helmholtz Zentrum in Munich, Germany as a part of the Research Unit for Environmental Organic Isotope Chemistry.