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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.1
- 수록면
- 218 - 225 (8page)
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Objectives: In this paper, a dielectric barrier discharge (DBD) plasma reactor was investigated for degrading the dye Rhodamine B (RhB) in aqueous solutions. Methods: The DBD plasma reactor system in this study consisted of a plasma component [titanium discharge (inner), ground (outer) electrode and quartz dielectric tube], power source, and gas supply. The effects of various parameters such as first voltage (input power), gas flow rate, second voltage (output power), conductivity and pH were investigated. Results: Experimental results showed that a 99%aqueous solution of 20 mg/l Rhodamine B is decolorized following an eleven minute plasma treatment. When comparing the performance of electrolysis and plasma treatment, the RhB degradation of the plasma process was higher that of the electrolysis. The optimum first voltage and air flow rate were 160 V (voltage of trans is 15 kV) and 3 l/min, respectively. With increased second voltage (4 kV to 15 kV), RhB degradation was increased. The higher the pH and the lower conductivity, the more Rhodamine B degradation was observed. Conclusions: OH radical generation of dielectric plasma process was identified by degradation of N, N-dimethyl-4-nitrosoaniline (RNO, indicator of OH radical generation). It was observed that the effect of UV light, which was generated as streamer discharge, on Rhodamine B degradation was not high. Rhodamine B removal was influenced by real second voltage regardless of initial first and second voltage. The effects of pH and conductivity were not high on the Rhodamine B degradation.
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참고문헌 (21)
참고문헌 신청
Choi JO / 2001 / Application technology of low plasma / News Inform Chem Eng 19 (5) : 596 ~ 603
Coast CR / 2008 / Electrochemical treatment of tannery wastewater using DSA electrodes / J Hazard Mater 153 : 616 ~ 627
Hoigen J / 1983 / Rate constants of reactions of ozone with organic and inorganic compounds in water / Wat Res 10 : 185 ~ 194
Joshi AA / 1995 / Formation of hydroxyl radicals, hydrogen peroxide and aqueous electrons by pulsed streamer corona discharge in aqueous solution / J Hazard Mater 41 : 3 ~ 30
Li J / 2007 / Degradation of phenol in water using a gas-liquid phase pulsed discharge plasma reactor / Thin Sol Films 51 : 283 ~ 288
Coast CR / 2008 / Electrochemical treatment of tannery wastewater using DSA electrodes / J Hazard Mater 153 : 616 ~ 627
Hoigen J / 1983 / Rate constants of reactions of ozone with organic and inorganic compounds in water / Wat Res 10 : 185 ~ 194
Joshi AA / 1995 / Formation of hydroxyl radicals, hydrogen peroxide and aqueous electrons by pulsed streamer corona discharge in aqueous solution / J Hazard Mater 41 : 3 ~ 30
Li J / 2007 / Degradation of phenol in water using a gas-liquid phase pulsed discharge plasma reactor / Thin Sol Films 51 : 283 ~ 288
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