浸漬型膜分離活性汚泥法において気泡径及び曝気量が膜面せん断力に与える影響
書誌事項
- タイトル別名
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- Influence of bubble size distribution and air flux on membrane surface shear stress in submerged membrane bioreactor
抄録
This study is aimed at elucidating the mechanism by which rising air bubbles induce shear stress on a vertically set flat-sheet membrane surface.Shear stress on the flat-sheet membrane surface caused by aeration was measured directly using a shear stress sensor. In all experimental conditions, time-averaged upward-direction shear stress on the membrane surface was compared to theoretical shear stress values considering the effect of water flow on membrane surface. Water velocity measurement of bubble flow using Laser Doppler Velocimeter revealed that shear stress working on membrane surface was closely related to upward-direction water velocity. Bubble size measurement of bubble flow using Digital Camera suggested that shear stress working on membrane surface was influenced by bubble size distribution.
収録刊行物
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- 環境工学研究論文集
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環境工学研究論文集 44 143-149, 2007
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
- 1390001204111350528
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- NII論文ID
- 130003775879
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- ISSN
- 1884829X
- 13415115
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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
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可