[11a-E204-1~9] 8.5 Plasma phenomena, emerging area of plasmas and their new applications

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[11a-E204-5] Investigation of PFAS Decomposition Characteristics Using Gas-Liquid Interfacial Plasma

〇(M1)Taito Uozumi¹, Siqi Deng¹, Shota Sasaki¹, Toshiro Kaneko¹ (1.Grad. Sch. of Eng., Tohoku Univ.)

Keywords:

per- and poly fluoroalkyl substances,Atmospheric-Pressure Plasma,Gas-Liquid Interface

Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are persistent organic pollutants widely used in various applications, and the development of efficient treatment technologies is essential. In this study, gas–liquid interfacial plasma treatment was applied to investigate the decomposition mechanisms of perfluorooctanoic acid (PFOA). The saturation of fluoride ion production during lonf-term treatment indicated that PFOA decomposition efficiency was reduced over time. The effects of the experimental conditions on the characteristics of PFOA decomposition will also be discussed.