Enhancing Interface Reactions by Introducing Microbubbles into a Plasma Treatment Process for Efficient Decomposition of PFOA
Han Zhang, Pan Li, Zhang Ai, Zhuyu Sun, Jinxia Liu, Paul Héroux, Yanan Liu
Abstract
. Aside from fluoride, PFOA was degraded to a range of short-chain perfluoroalkyl acids and, to a minor extent, at least 20 other fluorinated transformation products. PFOA degradation mechanisms were proposed, including decarboxylation, hydroxylation, hydrogenation reduction, and defluorination reactions. Real water matrices (groundwater, tap water, wastewater effluent, and surface water) showed moderate impact on treatment outcomes, demonstrating the robustness of the treatment process. The study demonstrated an environmentally friendly nonthermal plasma technology for effective PFOA degradation.
Topics & Concepts
Perfluorooctanoic acidChemistryEffluentEnvironmental chemistryWater treatmentDecompositionWastewaterSewage treatmentTap waterDegradation (telecommunications)Environmental engineeringOrganic chemistryEnvironmental scienceTelecommunicationsComputer sciencePer- and polyfluoroalkyl substances researchAtmospheric chemistry and aerosolsToxic Organic Pollutants Impact