埋立地浸出水処理におけるダイオキシン類の分解に関する研究

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タイトル別名
  • Decomposition of Dioxins in a Landfill Leachate by Advanced Oxidation Processes
  • ウメタテチ シンシュツスイ ショリ ニ オケル ダイオキシンルイ ノ ブンカイ ニ カンスル ケンキュウ

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Two types of advanced oxidation processes, O3/H2O2and UV/O3/H2O2processes, were tested to evaluate their performances of decomposing dioxins contained in a landfill leachate. In this experiment, the concentration of total dioxins reduced from 6, 500 pg/l of the raw water to 3, 500 pg/1 and 1, 900 pg/l of the treated waters by the O3/H2O2and UV/O3/H2O2processes, respectively. Comparing the decomposition data profiles of each dioxin homologue, both methods showed nearly the same performance for low-chlorinated compounds. But for high-chlorinated compounds, the UV/O3/H2O2process showed a better decomposition performance than the O3/H2O2process. Ninety one percent of total TEQ of the raw water was composed of tetra, penta and hexa-chlorinated compounds and the TEQ deriving from high-chlorinated compounds was small. From our data, the UV/O3/H2O2process was more useful for the removal of total dioxins, but the O3/H2O2process was showed to be useful for reducing TEQ which expresses the actual toxicity of dioxins.

収録刊行物

  • 廃棄物学会論文誌

    廃棄物学会論文誌 10 (2), 107-110, 1999

    一般社団法人 廃棄物資源循環学会

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