Development of High Efficient Oxygen Supply Method by Using Contacting Water-Liquid film with Air
スポンサーリンク
概要
- 論文の詳細を見る
Surface transfer and bubble transfer both contribute significantly to oxygen transfer in a conventional aeration system. However, bubble transfer plays the primary role of oxygen transfer. In the present study, the mere surface transfer is replaced by directly contacting liquid film designed elegantly with air. Liquid film aeration system is successfully developed on a laboratory scale. The experimental results from single-pass aeration mode show that the dissolved oxygen concentration in deoxygenate water reaches up to 95 % or higher, as compared with the saturation concentrations of the dissolved oxygen while using this novel aeration system. Meanwhile, an increase in oxygen mass transfer rate by 30% can be achieved in comparison with conventional aeration system. Moreover, the volumetric mass transfer coefficient for liquid film-forming apparatus (KLal) is found to be as much as 5 times higher than that for water surface in a conventional aeration test.
- Japan Society on Water Environmentの論文
著者
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Imai Tsuyoshi
Division Of Thermonuclear Fusion Research Japan Atomic Energy Research Institute
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UKITA Masao
Division of Environmental Science and Engineering, Graduate School of Science and Engineering (Engineering), Yamaguchi University
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ZHU Hua
Division of Symbiotic Environmental Systems Engineering, Graduate School of Science and Engineering (Engineering), Yamaguchi University
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TANI Kousuke
Division of Symbiotic Environmental Systems Engineering, Graduate School of Science and Engineering (Engineering), Yamaguchi University
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SEKINE Masahiko
Division of Environmental Science and Engineering, Graduate School of Science and Engineering (Engineering), Yamaguchi University
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HIGUCHI Takaya
Division of Environmental Science and Engineering, Graduate School of Science and Engineering (Engineering), Yamaguchi University
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ZHANG Zhenjia
School of Environmental Science and Engineering, Shanghai Jiao Tong University
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SEKINE Masahiko
Division of Civil and Environmental Engineering, Graduate School of Science and Engineering, Yamaguchi University, Japan
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IMAI Tsuyoshi
Division of Environmental Science and Engineering, Yamaguchi University, Japan
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