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http://dx.doi.org/10.5322/JES.2011.20.5.623

A Basic Study of Plasma Reactor of Dielectric Barrier Discharge for the Water Treatment  

Kim, Dong-Seog (Department of Environmental Science, Catholic University of Daegu)
Park, Young-Seek (Faculty of Liberal Education, Daegu University)
Publication Information
Journal of Environmental Science International / v.20, no.5, 2011 , pp. 623-630 More about this Journal
Abstract
This study investigated the degradation of N, N-Dimethyl-4-nitrosoaniline (RNO, indicator of the generation of OH radical) by using dielectric barrier discharge (DBD) plasma. The DBD plasma reactor of this study consisted of a quartz dielectric tube, titanium discharge (inner) and ground (outer) electrode. The effect of shape (rod, spring and pipe) of ground electrode, diameter (9~30 mm) of ground electrode of spring shape and inside diameter (4~13 mm) of quartz tube, electrode diameter (1~4 mm), electrode materials (SUS, Ti, iron, Cu and W), height difference of discharge and ground electrode (1~15.5 cm) and gas flow rate (1~7 L/min) were evaluated. The experimental results showed that shape of ground electrode and materials of ground and discharge electrode were not influenced the RNO degradation. The thinner the diameter of discharge and ground electrode, the higher RNO degradation rate observed. The effect of height gap of discharge between ground electrode on RNO degradation was not high within the experimented value. Among the experimented parameters, inside diameter of quartz tube and gas flow rate were most important parameters which are influenced the decomposition of RNO. Optimum inside diameter of quartz tube and gas flow rate were 7 mm and 4 L/min, respectively.
Keywords
Dielectric Barrier Discharge; Water Plasma; OH radical; Design parameter; Wastewater treatment;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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