Journal of Urban Science (도시과학)

Urban Science Institute (인천대학교 도시과학연구원)
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Application of UV Photocatalytic Degradation of Benzene

  • Gan, Yi (School of Biology, Food and Environment, Hefei University) ;
  • Liu, Ruiqi (School of Biology, Food and Environment, Hefei University) ;
  • Yu, Zhimin (School of Biology, Food and Environment, Hefei University)
  • Received : 2019.11.30
  • Accepted : 2019.12.30
  • Published : 2019.12.30
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Abstract

Benzene pollution is becoming increasingly serious, and the treatment technology of benzene has attracted much attention. In this paper, a self-made photocatalytic reactor was used to explore the removal rate of benzene under the ultraviolet light with the wavelength of 253.7nm. The results showed that the degradation rate of benzene decreased from 64.29% to 16.26% when the concentration increased from 43mg/㎥ to 256mg/㎥ under the condition of 28W UV light intensity and 50s residence time. Under the condition of 28W UV light intensity and 103mg/㎥ concentration, the residence time increased from 16.5s to 50s, and the benzene removal rate increased from 13.23% to 42.72%.Under the condition of benzene concentration 103mg/㎥ and residence time of 50s, the removal rate of benzene increased from 29.34% to 52.58% in the process of UV light intensity rising from 28W to 48W.It is concluded that decreasing the concentration and increasing the residence time of gas were beneficial to the removal of benzene and increasing the light intensity can improve the removal rate of benzene.

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