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- Title
Activated Persulfate by Dielectric Barrier Discharge Plasma for the Degradation of Unsymmetrical Dimethyl Hydrazine as Wastewater Pollutants.
- Authors
Zhen Zhou; Zhi Zheng; Huijun Li; Ren He; Ruiqin Hou; Yaqin Yu; Yao Yang
- Abstract
Releasing unsymmetrical dimethyl hydrazine (UDMH) in ambient medium is an escalating environment crisis that catches aggrandizing public concerns. Herein, a non-thermal plasma activating persulfate maneuver was introduced and its application mechanism in UDMH degradation was explored. Oxidizing kinetic experiments show that 93.8% UDMH were eliminated along with 12.5 kV, pH = 8, 50 mM NaCl, Na2S2O8/UDMH (mol/mol) = 2, and 140 mL/min. The Visual MINTEQ simulated species distribution of UDMH well predicted the oxidation behaviors of UDMH in the variation of pH. Radical scavenging test integrated with UV-vis spectroscopy were introduced to identify the predominating reactive oxygen species during UDMH decomposition. The ·OH and ·SO4 - played a synergistic role in the UDMH oxidization. Overall, this study may shed new lights on the degradation of UDMH industry wastewater using hybrid technique.
- Subjects
POLLUTANTS; PLASMA flow; HYDRAZINE; HYDRAZINES; ETHANES
- Publication
Polish Journal of Environmental Studies, 2023, Vol 32, Issue 4, p3447
- ISSN
1230-1485
- Publication type
Article
- DOI
10.15244/pjoes/160191