Fei Liu
Environmental engineering
Hometown: New Taipei City, Taiwan, TW
Graduation date: Spring 2027
FURI | Fall 2026, Needs Review
Utilizing Sulfate-Reducing Bacteria to Mitigate the Influence of Anions on the Photodegradation of PFAS
Per- and polyfluoroalkyl substances (PFAS) are persistent environmental contaminants characterized by highly stable carbon–fluorine bonds, which present substantial challenges for conventional treatment processes. Vacuum ultraviolet (VUV) photolysis is a promising approach for PFAS destruction through the generation of reactive reducing species, particularly hydrated electrons. However, common inorganic anions, including nitrate and sulfate, can scavenge these reactive species and consequently inhibit PFAS degradation. This study investigates the integration of a hydrogen-based membrane biofilm reactor (H₂-MBfR) with VUV photolysis as a combined biological and photochemical treatment strategy. The H₂-MBfR will be evaluated for nitrate and sulfate removal, followed by an assessment of PFOA defluorination in biologically pretreated water. The study will further examine whether microbial metabolites or soluble microbial products influence VUV-driven degradation. This integrated approach aims to mitigate anion interference and enhance PFAS destruction, providing insight into the development of sustainable treatment strategies for PFAS-contaminated wastewater.
Mentor: Bruce Rittmann
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