Degradation of Low Concentrated Perfluorinated Compounds (PFCs) from Water Samples Using Non-Thermal Atmospheric Plasma (NTAP)

Journal article


Publication Details

Author(s): Jovicic V, Khan MJ, Zbogar-Rasic A, Fedorova N, Poser A, Swoboda P, Delgado A
Journal: Energies
Publication year: 2018
Volume: 11
Journal issue: 1290
ISSN: 1996-1073
Language: English


Abstract

Perfluorinated compounds (PFCs) are manmade chemicals, containing the
covalent C-F bond, which is among the strongest chemical bonds known to
organic chemistry. Abundant use of these chemicals contaminates air,
water, and soil around the world. Despite recent initiatives and legal
regulations set to reduce their omnipresence, conventional water
purification processes are either inefficient or very expensive,
especially for low PFC contamination levels. This research is focused on
the non-thermal atmospheric plasma (NTAP) decomposition of very low
concentrations (<1 µg/L) of PFCs (especially perfluorooctanoic acid
(PFOA) and perfluorooctanesulfonate (PFOS)), present in the wastewater
produced during the process of PFCs removal from contaminated soil. The
efficiency of the decomposition process was investigated for air,
oxygen, and nitrogen plasma, with exposure times of 1–10 min and
different plasma nozzle- and reactor sizes. Experiments demonstrated
that the NTAP treatment is an efficient alternative method for
degradation of more than 50% of the initial PFC concentration in the
water samples, in less than 200 s. The final concentration of PFC showed
strong dependency on the tested parameters. The treatment effect showed
to be strongly non-linear with time, followed by the reduction of the
pH-value of the treated sample, which might present a limiting factor
for further PFC decomposition.


FAU Authors / FAU Editors

Delgado, Antonio Prof. Dr.-Ing.
Lehrstuhl für Strömungsmechanik
Fedorova, Nataliia
Lehrstuhl für Strömungsmechanik
Jovicic, Vojislav
Lehrstuhl für Strömungsmechanik
Khan, Muhammad Jehanzaib
Lehrstuhl für Strömungsmechanik
Zbogar-Rasic, Ana Dr.-Ing.
Lehrstuhl für Strömungsmechanik


How to cite

APA:
Jovicic, V., Khan, M.J., Zbogar-Rasic, A., Fedorova, N., Poser, A., Swoboda, P., & Delgado, A. (2018). Degradation of Low Concentrated Perfluorinated Compounds (PFCs) from Water Samples Using Non-Thermal Atmospheric Plasma (NTAP). Energies, 11(1290). https://dx.doi.org/10.3390/en11051290

MLA:
Jovicic, Vojislav, et al. "Degradation of Low Concentrated Perfluorinated Compounds (PFCs) from Water Samples Using Non-Thermal Atmospheric Plasma (NTAP)." Energies 11.1290 (2018).

BibTeX: 

Last updated on 2019-12-04 at 10:50