A cold plasma plume with a highly conductive liquid electrode |
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Authors: | Chen Guang-Liang Chen Shi-Hu Chen Wen-Xing and Yang Si-Ze |
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Institution: | [1]Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Teeh University, Hangzhou 310018, China; [2]Department of Civil and Environmental Engineering, Syracuse University, Syracuse, NY 13210, USA; [3]Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China |
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Abstract: | A cold dielectric barrier discharge (DBD) plasma plume with one
highly conductive liquid electrode has been developed to treat
thermally sensitive materials, and its preliminary discharging
characteristics have been studied. The averaged electron temperature
and density is estimated to be 0.6eV and 1011/cm3,
respectively. The length of plasma plume can reach 5cm with helium
gas (He), and the conductivity of the outer electrode affects the
plume length obviously. This plasma plume could be touched by bare
hand without causing any burning or painful sensation, which may
provide potential application for safe aseptic skin care. Moreover,
the oxidative particles (e.g., OH, O*, O3) in the downstream
oxygen (O2) gas of the plume have been applied to treat the
landfill leachate. The results show that the activated O2 gas
can degrade the landfill leachate effectively, and the chemical
oxygen demand (COD), conductivity, biochemical oxygen demand (BOD),
and suspended solid (SS) can be decreased by 52%,57%,76%
and 92%, respectively. |
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Keywords: | plasma plume liquid electrode degradation landfill leachate |
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