硫黄酸化細菌の造粒化と高濃度硝酸性窒素含有廃水への基礎的適用検討  [in Japanese] Self-immobilization of Sulfur Bacteria and the Basic Application Examination to Remove Nitrogen from Wastewater containing High Concentration of Nitrate  [in Japanese]

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Author(s)

    • 三木 理 MIKI Osamu
    • 新日本製鐵(株)技術開発本部先端技術研究所 Advanced Technology Research Laboratories, Nippon Steel Corp
    • 加藤 敏朗 KATO Toshiaki
    • 新日本製鐵(株)技術開発本部先端技術研究所 Advanced Technology Research Laboratories, Nippon Steel Corp
    • 伊藤 公夫 ITO Kimio
    • 新日本製鐵(株)技術開発本部先端技術研究所 Advanced Technology Research Laboratories, Nippon Steel Corp

Abstract

The application of the sulfur oxidizing bacteria to wastewater including high concentration of nitrate was basically examined by the experiment using artificial wastewater. As a result, the following were clarified.<BR>Sulfur oxidizing bacteria having the denitrification function was acclimated by using artificial wastewater containing only nitrate as a nitrogen source from the activated sludge of the sewage plant in about three weeks This bacteria was able to remove nitrogen from artificial wastewater which included nitrate of 900-1300mg-N·<i>l</i><sup>-1</sup> under the condition of 1.5-3 hours of HRT (The water temperature: 20°C). This sulfur source was thiosulfate and 3.5-4 was suitable in the S/N ratio. As for the acclimated sulfur oxidizing bacteria, the denitrification rate was presumed to be large since it was easy to make self-immobilized and was maintained to be hightly concentrated in the reactor. On the other hand, it was thought that there was a problem in the maintenance management by accumulating sulfur when an excessive high load operation was continued.

Journal

  • Journal of Japan Society on Water Environment

    Journal of Japan Society on Water Environment 24(8), 551-556, 2001-08-10

    Japan Society on Water Environment

References:  18

Cited by:  1

Codes

  • NII Article ID (NAID)
    10008005535
  • NII NACSIS-CAT ID (NCID)
    AN10372439
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    09168958
  • NDL Article ID
    5882820
  • NDL Source Classification
    ZN5(科学技術--建設工学・建設業--都市工学・衛生工学)
  • NDL Call No.
    Z16-1045
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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