下水処理水の工程別臭気の解析と臭気低減対策 Analysis of Odor Compounds in Sewerage Process Water and Deodor Methods

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著者

    • 青木 眞一 AOKI Shinichi
    • 財団法人滋賀県下水道公社東北部事務所 Touhokubu Office of Shiga Prefuctual Sewerage Management Public Corporation
    • 馬場 大哉 BAMBA Daiya
    • 東レテクノ株式会社環境科学技術部 Environment Science Technology Division, Toray Techno Co., Ltd.

抄録

The concentration of 21 odor compounds of water and air, odor index and DOC of the water were measured at nine sewerage process stations. The odor indexes of water decreased as the sewage treatment progressed. According to the dilution ratio given by dividing the concentration of an odor compound in the head space of a triangle flask with its threshold, it was suggested that sulfur-containing compounds are the main cause of odor at the upstream treatment process including the biological reaction process. Since the odor index obtained by the triangle flask method had a positive correlation with the concentration of aldehydes in water, it was suggested that the decrease in odor index depends on the concentration of aldehydes. The dilution ratios in air supported the suggestion that sulfur-containing compounds are the main cause of odor at the upstream treatment process, and acetaldehyde is the main cause of odor at the outflow of final sedimentation and final effluent. The concentration of acetaldehydes of air at the final effluent was 15 times as high as that of a natural environment. Deodor methods by both photocatalysis and ozonation treatment were considered feasible for decreasing the odor of the final effluent.

収録刊行物

  • 水環境学会誌 = Journal of Japan Society on Water Environment

    水環境学会誌 = Journal of Japan Society on Water Environment 27(10), 643-649, 2004-10-10

    公益社団法人 日本水環境学会

参考文献:  12件中 1-12件 を表示

被引用文献:  2件中 1-2件 を表示

各種コード

  • NII論文ID(NAID)
    10013650519
  • NII書誌ID(NCID)
    AN10372439
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09168958
  • NDL 記事登録ID
    7118321
  • NDL 雑誌分類
    ZN5(科学技術--建設工学・建設業--都市工学・衛生工学)
  • NDL 請求記号
    Z16-1045
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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