Physical Sciences and Mathematics Commons^™

Removal Of Perfluorinated Compounds From Post-Emergency Wastewater By Advanced Oxidation Process And Granular Activated Carbon Adsorption, Sean M. Dyson

Theses and Dissertations

This research presents a novel approach to remove per- and polyfluoroalkyl substances (PFAS) from aqueous film-forming foam (AFFF) impacted wastewater with high (~100 mg/L) total organic carbon (TOC) concentrations. A treatment-train process was investigated involving an ultraviolet (UV)/hydrogen peroxide (H2O2) advanced oxidation process (AOP) followed by filtration using Calgon Filtrasorb® 600 (F600) granular activated carbon (GAC). UV/H₂O₂ AOP experiments were conducted to determine whether TOC concentrations could be reduced as a pre-treatment step before filtering the water with F600-GAC. Results showed using UV/H₂O₂ AOP reduced TOC in solution by > 98% (< 2 mg/L down from 99.1 mg/L). Reducing TOC concentrations was achieved by using a 250 mg/L H₂O_{2 …}