Thank you for requesting SourceStop Technical Bulletin

Background

To date, PFAS are believed to be almost entirely resistant to biodegradation, and the available commercial methods for their degradation are inefficient or highly energy intensive. Alternatively, a practical and sustainable approach to address these PFAS source areas and manage the risk of PFAS in the environment is by stabilizing or immobilizing PFAS in situ. Activated carbon is able to immobilize PFAS due to its hydrophobicity and high surface area. PFAS leaching can occur rapidly during precipitation events, suggesting the importance of adsorbing PFAS with high time efficiency to halt their continued vertical migration. SourceStop™, a highly concentrated colloidal activated carbon product applied to the base of PFAS source zone treatments, has been developed specifically for this purpose.

 A High Concentration Colloidal Activated Carbon Product for Immobilizing PFAS at the Source