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Plasma Sci. Technol. ›› 2020, Vol. 22 ›› Issue (3): 034005.doi: 10.1088/2058-6272/ab568e

• The 19th National Conference on Plasma Science and Technology • Previous Articles     Next Articles

Decomposition of dioxin-like components in a DBD reactor combined with Hg/Ar electrodeless ultraviolet

Weixuan ZHAO (赵玮璇)1,2, Liping LIAN (连莉萍)1,2, Yanpei WU (吴妍婄)1,2, Yanghaichao LIU (刘杨海超)1,2, Renxi ZHANG (张仁熙)1,2,3, Gang LUO (罗刚)1,2,3 and Huiqi HOU (侯惠奇)1,2   

  

  1. 1 Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Institute of Environmental Science, Fudan University, Shanghai 200433, People's Republic of China
    2 National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
  • Received:2019-09-04 Revised:2019-11-08 Accepted:2019-11-12 Published:2019-12-18
  • Supported by:
    This research was funded by National Natural Science Foundation of China (No. 21577023), the Special Research Project on Causes and Control Technology of Air Pollution (No. 2017YFC0212905) and the science and technology innovation action project supported by the Science and Technology Commission of Shanghai Municipality (No. 18DZ1202605).

Abstract: A new combined reactor with Hg/Ar electrodeless ultraviolet (EDUV) activated by DBD for 3,4-dichlorodiphenyl ether abatement is presented. The effect of specific input energy and feeding gas component on 3,4-dichlorodiphenyl ether removal efficiency has been explored. Compared with a single DBD system, this new combined process performed a significant promotion on 3,4-dichlorodiphenyl ether abatement. Experiment results verified that active oxygen clearly contributed to the synergistic activity of DBD-EDUV system. Results of emission spectra showed that UV radiation of 253.7 nm could be detected in the DBD-EDUV system. Further, the products of DBD-EDUV process were analyzed via gas chromatographymass spectrometer (GC-MS) to reveal involved decomposition mechanism.

Key words: dielectric barrier discharge (DBD), dioxin-like, 3,4-dichlorodiphenyl ether, EDUV photolysis