Poly- and perfluoroalkyl substances (PFAS) are a large class of manufactured chemicals that have been extensively used in industrial, military, and domestic applications since the 1940s. Because exposure to certain levels of PFAS are known to cause potential risks to human health, PFAS have become emerging environmental contaminants of great concern. Persulfate based advanced oxidation processes (AOPs) have been widely applied in environmental remediation for degrading recalcitrant organic contaminants. In this study, we investigated the decomposition of PFOA in aqueous solution with ultrasound-activated persulfate. The effects of several operating parameters and environmental conditions, including ultrasonic model, persulfate doses, PFOA concentration, initial pH as well co-existing natural organic matter on PFOA degradation were discussed. The study contributes to our understanding of the role of ultrasound on PS activation and shed light on the potential implementation of the persulfate based AOPs for PFAS treatments in wastewater systems.

Ultrasound-activated persulfate for degradation of PFAS in water

Fall 2022 abstracts, posters, and presentations will launch in mid-September.

ACS Fall 2022

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.