Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Removal of Gaseous Toluene Using a TiO2 Photocatalytic System with Mist Generated by Ultrasonic Atomization

초음파 발생 미스트를 이용한 TiO2 광촉매 시스템에서의 가스상 톨루엔 제거

  • Choi, Min-Suk (Department of Environmental Engineering, Inha University) ;
  • Han, Se-Hyun (Department of Environmental Engineering, Inha University) ;
  • Jang, Sung-Chan (Department of Environmental Engineering, Inha University) ;
  • Jung, Yong-Won (Department of Environmental Engineering, Inha University)
  • Published : 2009.06.30
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Abstract

Feasibility study of using $Ti0_2$ mist generated by ultrasonic atomization for photocatalytic degradation of gaseous toluene was attempted in this study. For this, the photocatalytic reactor consisting of mist generator and photo-reactor was designed. Most of experimental results showed that steady state reached about 30 minutes after the start of experiments. The effects of $Ti0_2$ concentration, toluene concentration, and UV wavelength on toluene removal ratio were investigated. It was found that the highest removal efficiency was obtained when $Ti0_2$ concentration was 0.6 g/L in slurry. At this condition, it was found that the toluene removal efficiency increased as toluene concentration in feed decreased. In order to investigate the effect of UV wavelength, experiments were carried out using three UV lamps with different UV wavelength. The results showed that the highest removal efficiency was achieved when the lamp with the shortest wavelength were employed.

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