オキシデーションディッチ法における基質除去動力学と槽内流動・混合とに関する基礎的研究
書誌事項
- タイトル別名
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- STUDY ON THE KINETICS OF SUBSTRATE REMOVAL AND MODELING OF FLOW PATTERN IN AN OXIDATION DITCH
説明
The modeling of the simultaneous removal of organic substances and nitrogen compounds in oxidation ditch (OD) process and experiments with a laboratory scale apparatus were performed to obtain information 1) on the performance of water quality in a ditch and 2) on the effects of operating conditions on substrates removal. The change of water quality represented by the parameters such as BOD, Kj-N, NOx-N, DO, alkalinity, and so on, in the ditch, was analyzed by combining both the kinetic model of Monod-type expression including the effect of other substances and the tank-in-series model describing the mixing in a ditch. As a result, the removal ratio of BOD and Kj-N was. expected to increase with the hydrauric retention time (HRT). As for T-N, optimum HRT was found in both of the results of experiment and calculation, probably because the removal of T-N was closely related to the distribution of DO level.<BR>In addition, the mixing model in a ditch, consisting of a virtically two phase flow with different flow velocity, was proposed to develop a model applicable to an actual OD process.
収録刊行物
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- 衛生工学研究論文集
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衛生工学研究論文集 22 (0), 227-239, 1986
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
- 1390001204112346112
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- NII論文ID
- 130003775440
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- ISSN
- 18848281
- 09134069
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
