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http://dx.doi.org/10.5762/KAIS.2020.21.7.708

Decomposition of odor using atmospheric-pressure plasma  

Kang, Seok-Won (Dept. of Earth and Environmental Engineering, College of Engineering, Kangwon National University)
Lee, Jae-Sik (Dept. of Earth and Environmental Engineering, College of Engineering, Kangwon National University)
Lee, Kang-San (Dept. of Earth and Environmental Engineering, College of Engineering, Kangwon National University)
Lim, Hee-Ah (Dept. of Earth and Environmental Engineering, College of Engineering, Kangwon National University)
Kim, Ji-Seong (Dept. of Earth and Environmental Engineering, College of Engineering, Kangwon National University)
Lee, Jeong-Dae (Dept. of Earth and Environmental Engineering, College of Engineering, Kangwon National University)
Park, Wol-Su (Dept. of Earth and Environmental Engineering, College of Engineering, Kangwon National University)
Park, Young-Koo (Dept. of Earth and Environmental Engineering, College of Engineering, Kangwon National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.7, 2020 , pp. 708-718 More about this Journal
Abstract
Offensive odor is recognized as a social environmental problem due to its olfactory effects. Ammonia(NH3), hydrogen sulfide(H2S) and benzene(C6H6) are produced from various petrochemical plants, public sewage treatment plants, public livestock wastes, and food waste disposal facilities in large quantities. Therefore efficient decomposition of offensive odor is needed. In this study, the removal efficiency of atmospheric-pressure plasma operating at an ambient condition was investigated by evaluating the concentrations at upflow and downflow between the plasma reactor. The decomposition of offensive odor using plasma is based on the mechanism of photochemical oxidation of offensive odor using free radical and ozone(O3) generated when discharging plasma, which enables the decomposition of offensive odor at ordinary temperature and has the advantage of no secondary pollutants. As a result, all three odor substances were completely decontaminated within 1 minute as soon as discharging the plasma up to 500 W. This result confirms that high concentration odors or mixed odor materials can be reduced using atmospheric-pressure plasma.
Keywords
Decomposition of Odor; $NH_3$; $H_2S$; $C_6H_6$; Atmospheric-Pressure Plasma; GC; FID;
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