中層貧酸素化の軽減を目的とした貯水池曝気施設の計画

• 道奥 康治

  神戸大学 工学部建設学科

• 小谷 英之

  (株) 東日本旅客鉄道

• 小林 秀典

  神戸大学大学院自然科学研究科

書誌事項

タイトル別名

• PLANNING OF AERATION SYSTEM FOR MINIMIZING DEOXYGENATION IN RESERVOIR METALIMNION

抄録

It was found in a eutrophic reservoir that the metalimnion became anoxic during the hot season while the hypolimnion became successfully aerated. As countermeasures against deoxygenation of the reservoir metalimnion, performance of three types of aeration systems, i. e. (i) air diffuser system, (ii) air bubbler destratification system and (iii) air bubble jet system, was evaluated by making a numerical analysis of water quality. In the analysis, physical processes such as dissolved oxygen dilution and vertical mixing caused by aeration were taken into consideration in addition to hydrodynamics and biochemical processes regarding to water quality. The system's performance was examined from view points not only of water purification but also of cost-benefit performance. It was found through the analysis that the air bubbler destratification system shows the best performance. System's capacity necessary for the aeration was also discussed.

収録刊行物

• 水工学論文集

  水工学論文集 51 1355-1360, 2007

  公益社団法人 土木学会

キーワード

• reservoir eutrophication
• deoxygenation
• decomposition of organic matters
• aeration
• water purification

詳細情報

• CRID: 1390001205170986240
• NII論文ID: 130003842413
• DOI: 10.2208/prohe.51.1355
• ISSN: 18849172
• ISSN: 09167374
• データソース種別:
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  • Crossref
  • CiNii Articles
  • KAKEN
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