Enhancement of Nitrogen Removal in a Rectangular Airlift Bubble Column Having Aerobic and Anaerobic Regions by Adding an Immobilizing Carrier
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概要
- 論文の詳細を見る
In order to enhance the nitrogen removal in the activated sludge process, a rectangular airlift bubble column where aerobic and anaerobic regions coexisted was used, and immobilizing carrier particles were added in the column. The effects of equipment and operation conditions on the liquid circulation flow rate and liquid-phase volumetric mass transfer coefficient were investigated. On the basis of oxygen balance, the distribution of dissolved oxygen concentration in the column was calculated by using these flow characteristics. From the dissolved oxygen distribution the volume fraction of anaerobic region was estimated. The results indicated that the volume fraction of the anaerobic region and the concentration of the immobilizing particles strongly affected the nitrogen removal. The nitrogen removal had a maximum value when the volume fraction of the anaerobic region was about 50%.
- 社団法人 化学工学会の論文
- 2004-03-01
著者
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NAKAMURA Masaaki
Department of Biomaterials, Osaka Dental University
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Nakamura M
Division Of Molecular Chemistry Graduate School Of Engineering Hokkaido University
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Bando Y
Department Of Chemical Engineering Nagoya University
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Bando Yoshiyuki
Department Of Applied Chemistry Gifu University
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Nakamura Masaaki
Department Of Chemical Engineering Nagoya University
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Bando Y
Nagoya Univ. Nagoya Jpn
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MENG Lingguang
Department of Chemical Engineering, Nagoya University
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TSUNO Naoki
Department of Chemical Engineering, Nagoya University
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Tsuno Naoki
Department Of Chemical Engineering Nagoya University
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Meng Lingguang
Department Of Chemical Engineering Nagoya University
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Nakamura Masaaki
Department Of Applied Physics Faculty Of Science Tokyo University Of Science
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