限外ろ過を用いた活性汚泥プロセスにおける蓄積物質の特性とその制御 Characteristics of Accumulated Organic Compounds and Their Control in the Activated Sludge Process with Ultrafiltration

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Characteristics of soluble organic compounds which were accumulated in the activated sludge process with ultrafiltration for solid-liquid separation were evaluated through bench-scale experiments of artificial wastewater treatment. In one experiment (Run I), a sheet of ultrafiltration membrane was used during the whole experiment. However, in the other experiment (Run II), frequent replacement of ultrafiltration membrane was performed to control the accumulation of the compounds in the second stage of the experiment after around one month.In the both cases with and without replacement of the membrane, TOC concentration and E260 value of the filtrate increased to each maximum value. However, in Run II with frequent replacement of the membrane, TOC concentration and E260 value decreased, and oxygen uptake rate for substarate metabolism was recovered to a certain level.In Run I without replacement of the membrane, effects of the organic compounds on the growth of E. coli was examined to evaluate the potential effects of membrane separation on the growth of enteric bacteria. Those compounds had the actions to shorten a lag time and to suppress maximum biomass. As for the actions to maximum growth rate, there were two groups of compounds which accelerate and suppress. And the membrane blocked the compounds to suppress maximum growth rate and maximum biomass, but a portion of the compounds to shorten lag time passed through the membrane.

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 22(7), 574-580, 1999-07 

    公益社団法人 日本水環境学会

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各種コード

  • NII論文ID(NAID)
    10004452871
  • 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
    4802424
  • 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  NDL  J-STAGE 
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