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Article

An Energy Efficient Process for Degrading Perfluorooctanoic Acid (PFOA) Using Strip Fountain Dielectric Barrier Discharge Plasma

1
Laboratory of Plasma Physics, Beijing Institute of Graphic Communication, Beijing 102600, China
2
Department of Chemistry, Drexel University, Philadelphia, PA 19104, USA
*
Author to whom correspondence should be addressed.
Academic Editor: José Alberto Herrera-Melián
Water 2022, 14(15), 2420; https://doi.org/10.3390/w14152420
Received: 9 July 2022 / Revised: 31 July 2022 / Accepted: 2 August 2022 / Published: 4 August 2022
(This article belongs to the Section Wastewater Treatment and Reuse)
Perfluorooctanoic acid (PFOA) is an artificially synthesized per-fluorinated chemical widely used in industry. It is often released into the environment without treatment and causes pollution in groundwater. In this paper, we employed a strip fountain dielectric barrier discharge (SF-DBD) plasma source to degrade PFOA from the water. The effects of power supply mode, discharge gases, pH, the conductivity of the solution, concentration, etc., on the degradation efficiency were studied. For a 200 mL sample of 75 mg/L PFOA, a 99% degradation efficiency with a 204.5 μg/kJ energy production rate was achieved using an average power of 43 W negative pulse argon plasma for 50 min at atmospheric pressure. The total organic carbon concentration (TOC) decreased by 63% after a 60 min treatment. The SF-DBD proves to be a promising and energy-saving technique to efficiently remove PFOA from water. View Full-Text
Keywords: plasma; PFOA; degradation; dielectric barrier discharge plasma; PFOA; degradation; dielectric barrier discharge
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MDPI and ACS Style

Cheng, J.; Fan, Y.; Pei, X.; Tian, D.; Liu, Z.; Yang, L.; Feng, E.; Ji, H.-F.; Chen, Q. An Energy Efficient Process for Degrading Perfluorooctanoic Acid (PFOA) Using Strip Fountain Dielectric Barrier Discharge Plasma. Water 2022, 14, 2420. https://doi.org/10.3390/w14152420

AMA Style

Cheng J, Fan Y, Pei X, Tian D, Liu Z, Yang L, Feng E, Ji H-F, Chen Q. An Energy Efficient Process for Degrading Perfluorooctanoic Acid (PFOA) Using Strip Fountain Dielectric Barrier Discharge Plasma. Water. 2022; 14(15):2420. https://doi.org/10.3390/w14152420

Chicago/Turabian Style

Cheng, Jiushan, Yangyang Fan, Xueyun Pei, Di Tian, Zhongwei Liu, Lizhen Yang, Eric Feng, Hai-Feng Ji, and Qiang Chen. 2022. "An Energy Efficient Process for Degrading Perfluorooctanoic Acid (PFOA) Using Strip Fountain Dielectric Barrier Discharge Plasma" Water 14, no. 15: 2420. https://doi.org/10.3390/w14152420

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