THE EFFECT OF COMBINED SEWER SEWAGE TREATMENT PLANT DISCHARGE DURING RAINY EVENTS ON THE SANITARY MICROORGANISMS OF KATSURA RIVER WATER

DOI Web Site 1 Citations 11 References
  • YAMAGUCHI Takeshi
    京都大学大学院工学研究科附属 流域圏総合環境質研究センター
  • IHARA Masaru
    京都大学大学院工学研究科附属 流域圏総合環境質研究センター
  • YAMASHITA Naoyuki
    愛媛大学大学院農学研究科 生物環境学専攻・地域環境工学コース
  • IM Dong Bum
    京都大学大学院工学研究科附属 流域圏総合環境質研究センター
  • TAMURA Taichi
    京都大学大学院エネルギー科学研究科 エネルギー社会・環境科学専攻
  • MAKINO Tatsuki
    京都大学大学院工学研究科附属 流域圏総合環境質研究センター
  • TANAKA Hiroaki
    京都大学大学院工学研究科附属 流域圏総合環境質研究センター

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Other Title
  • 雨天時の桂川の衛生微生物指標に与える合流式下水道の下水処理場の影響に関する実態調査

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<p> Public concerns have recently emerged due to sanitary microorganisms in combined sewer overflows (CSO) during rainy events. The purpose of this study was to investigate the influence of primary treatment discharge from a combined sewer sewage treatment plant (STP) on sanitary microorganisms in receiving Katsura River. To this end, we investigated the presence of sanitary microorganisms in STP discharge and river water during rainy events. In addition, increase in the load of sanitary microorganisms during rainy events was examined based on our previous study during non-rainfall conditions. It was found that primary treatment discharge during rainy events significantly increased in the microbial load of STP discharge and the receiving water. However, the increasing load of the river reach between upstream and downstream points could not be explained by the increase in the STP discharge alone.</p>

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