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THE IN SITU REMEDIATION OF PFAS-IMPACTED GROUNDWATER USING INJECTABLE ACTIVATED CARBON
McGregor, R.
RemTech 2018, 10-12 October, Banff, Alberta, Canada. 27 slides, 2018

This study involved the application of colloidal activated carbon at a site in Canada. PFOA and PFOS were detected in groundwater at concentrations up to 3,300 ng/L and 1,500 ng/L, respectively, before remediation. Colloidal activated carbon was applied using direct-push technology, resulting in the removal of the PFOA and PFOS to concentrations at and below the analytical detection limit (> 20 ng/L) over a 21-month period. Analysis showed that all PFASs analyzed were below their method detection limits. Examination of post-injection cores indicated that the colloidal activated carbon was successfully distributed within the target zone and was measured up to 5 m away from the injection point.
Slides: https://www.esaa.org/wp-content/uploads/2018/10/18-McGregor.pdf
Longer abstract: https://www.esaa.org/wp-content/uploads/2016/05/Abstracts-RT2018-36.pdf



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