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http://dx.doi.org/10.5322/JESI.2014.23.9.1627

Application of DBD Plasma Catalysis Hybrid Process to remove Organic Acids in Odors  

Hong, Eun-Gi (Department of Environmental Engineering, Dong-A University)
Suh, Jeong-Min (Department of Bio-Environmental Energy, Pusan National University)
Choi, Kum-Chan (Department of Environmental Engineering, Dong-A University)
Publication Information
Journal of Environmental Science International / v.23, no.9, 2014 , pp. 1627-1634 More about this Journal
Abstract
Odor control technology include absorption, adsorption, incineration and biological treatments. But, most of processes have some problems such as secondary organic acids discharge at the final odor treatment facility. In order to solve the problems for effective treatment of organic acids in odor, it is necessary to develop a new type advanced odor control technology. Some of the technology are plasma only process and plasma hybrid process as key process of the advanced technology. In this study, odor removal performance was compared DBD(Dielectric Barrier Discharge)plasma process with PCHP(plasma catalysis hybrid process) by gaseous ammonia, formaldehyde and acetic acid. Plasma only process by acetic acid obtained higher treatment efficiency above 90%, and PCHP reached its efficiency up to 96%. Acetic acid is relatively easy pollutant to control its concentration other than sulfur and nitrogen odor compounds, because it has tendency to react with water quickly. To test of the performance of DBD plasma process by applied voltage, the tests were conducted to find the dependence of experimental conditions of the applied voltage at 13 kV and 15 kV separately. With an applied voltage at 15 kV, the treatment efficiency was achieved to more higher than 13 kV from 83% to 99% on ammonia, formaldehyde and acetic acid. It seems to the odor treatment efficiency depends on the applied voltage, temperature, humidity and chemical bonding of odors.
Keywords
Odor; Organic acids; Plasma Catalysis Hybrid Process(PCHP);
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