Enhancement of Nitrogen Removal in a Rectangular Airlift Bubble Column Having Aerobic and Anaerobic Regions by Adding an Immobilizing Carrier
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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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- Bando Yoshiyuki
- Department of Chemical Engineering, Nagoya University
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- Nakamura Masaaki
- Department of Chemical Engineering, Nagoya University
Bibliographic Information
- Other Title
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- Enhancement of nitrogen removal in rectangular airlift bubble column having aerobic and anaerobic regions by adding immobilizing carrier
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Abstract
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%.
Journal
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 37 (3), 399-405, 2004
The Society of Chemical Engineers, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282679545120512
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- NII Article ID
- 10013339762
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- NII Book ID
- AA00709658
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- COI
- 1:CAS:528:DC%2BD2cXivVyntLc%3D
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- ISSN
- 18811299
- 00219592
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- NDL BIB ID
- 6891634
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed