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- 大沢 英一
- 福島工業高等専門学校工業化学科
書誌事項
- タイトル別名
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- Oxygen Transfer into an Aeration Tank with Consideration to Three Transfer Routes
- サン キシキ バッキソウ エ ノ サンソ イドウ ケイロ オ コウリョシタ イ
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説明
Oxygen dissolves into water from dispersed bubbles and the water surface in a diffused aeration tank. The water surface can be divided into two regions, free surface and surface of bubble-bursting region. The bubble-bursting region is formed at the water surface above the gas diffuser. To evaluate the oxygen transfer rates of the three routes, oxygen concentrations at dynamic equilibrium were measured when nitrogen and air were used as diffused gas and gas on the free surface, in addition to measuring KLa as usual.<BR>By experiment, where (width of tank) / (depth of water) =2, the following results were obtained.<BR>1) The ratio of oxygen transfer rate from diffused bubbles to total oxygen transfer rate increases when diffused gas flow rate increases, and it is independent of tank scale.<BR>2) Oxygen transfer coefficient in liquid phase at free surface is smaller by about one order of magnitude than that around diffused bubbles.
収録刊行物
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- 化学工学論文集
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化学工学論文集 9 (4), 404-408, 1983
公益社団法人 化学工学会
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詳細情報 詳細情報について
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- CRID
- 1390001204508226432
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- NII論文ID
- 130000881463
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- NII書誌ID
- AN00037234
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- ISSN
- 13499203
- 0386216X
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- NDL書誌ID
- 2599665
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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
- NDL
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- 抄録ライセンスフラグ
- 使用不可