Decomposition and Utilization of Ozone in Water Treatment Reactor with Ultraviolet Radiation

Shigeharu Morooka, Katsuki Kusakabe, Hayashi Jun-Ichiro, Kazuaki Isomura, Kiyoshi Ikemizu

研究成果: Contribution to journalArticle査読

19 被引用数 (Scopus)

抄録

The decomposition rate of ozone in the gas phase with ultraviolet irradiation was determined in a thin, rectangular channel reactor where the distributions of ozone concentration and UV irradiation were minimized. The experiment was carried out under conditions which were encountered in normal water treatment units. The overall quantum yield of ozone decomposition was correlated by experimental equations. Estimated values of the overall quantum yield based on elementary reactions and kinetic data in the literature were much smaller than the experimental data. The utilization efficiency of ozone in the ozone/UV process for water treatment was simulated with a simple model reactor. Excessive UV radiation is likely to destroy gaseous ozone before it is transferred into the liquid phase. The optimum value of UV irradiance depends on the apparatus and operation conditions.

本文言語英語
ページ(範囲)2372-2377
ページ数6
ジャーナルIndustrial and Engineering Chemistry Research
27
12
DOI
出版ステータス出版済み - 12 1 1988

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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