書誌事項
- タイトル別名
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- INJECTION OF HIGHLY OXYGENENATED WATER INTO THE BOTTOM OF DREDED AREA IN LAKE NAKAUMI
抄録
A field test of supplying oxygen-rich water into the bottom of dredged pits in Lake Nakaumi was performed in 2009. We used recently developed hypolimnetic oxygenators called WEP. In Yonago Bay, we selected two adjacent dredged pits, then installed and operated the WEP system in one pit for the experimental purpose. The other pit was used for the control purpose. The vertical profiling data of water quality in the pits showed the dissolved oxygen concentration was increased to 15-29 mg/L nearby the outlet of WEP system, and was kept at 5-15 mg/L in the experimental pit, on the other hand it was less than 5 mg/L in the control pit for 6 months of the experimental period (May - Oct.) in spite of the existence of tidal current. Moreover, we performed 3-D numerical simulations using ELCOM to evaluate the flow characteristics in the pits. They revealed that the water in the bottom of the pit stayed still but the water in the shallower layer there sometimes flowed out to the surrounding area.
収録刊行物
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- 土木学会論文集Ｂ１（水工学）
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土木学会論文集Ｂ１（水工学） 67 (4), I_1525-I_1530, 2011
公益社団法人 土木学会
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詳細情報 詳細情報について
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- CRID
- 1390282680327228416
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- NII論文ID
- 130004557530
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- ISSN
- 2185467X
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可