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Novel Partial Nitritation Process with External Selector Treating Low-strengthen Wastewater
https://kitakyu.repo.nii.ac.jp/records/2000314
https://kitakyu.repo.nii.ac.jp/records/20003141addfa44-3c6f-45fb-b942-94d1443a797e
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
(KKDE1302PY)甲第302号_ファム ティ イェン.pdf (3.8 MB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||||
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| 公開日 | 2025-06-18 | |||||||
| タイトル | ||||||||
| タイトル | Novel Partial Nitritation Process with External Selector Treating Low-strengthen Wastewater | |||||||
| 言語 | en | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| キーワード | ||||||||
| 言語 | en | |||||||
| 主題Scheme | Other | |||||||
| 主題 | stage A-B|nitrification|nitrogen removal|activated sludge model|inhibition|nitrification|high-throughput DNA analysis | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||
| 資源タイプ | doctoral thesis | |||||||
| アクセス権 | ||||||||
| アクセス権 | open access | |||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||
| その他（別言語等）のタイトル | ||||||||
| その他のタイトル | 低窒素濃度排水を処理するためのセレクターを具備した新たな部分亜硝酸型硝化プロセス | |||||||
| 言語 | ja | |||||||
| 著者 |
PHAM THI YEN
× PHAM THI YEN
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| 著者別名 | ||||||||
| 姓名 | ファム ティ イェン | |||||||
| 言語 | ja | |||||||
| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | This study used a laboratory-scale activated sludge system with an external selector to inhibit nitrite-oxidizing microorganisms (NOO) to achieve partial nitrification (PN). The external selector receives concentrated microorganisms from the aeration tank, which are exposed to toxic compounds to partially destroy NOO before returning to the aeration tank.The experiment operated for 400 days, using the mixture of nitrite and ammonia (about 1,000 mg-N L−1 each) accelerated the microbial decay of both NOO and AOO in the external selector. In addition, the IWA-ASM1 model was used in this study to determine the kinetic parameters of NOO and AOO. From the kinetic analysis, the preferable operational range to attain 57%-partial nitritation was estimated.DNA analysis showed that Nitrosomonas was the most prevalent AOO and Nitrospira was the most dominant NOO. The DNA-based fractions for AOO and NOO were reasonably correlated to the model-based ones. A linear relationship between the kinetic model-based biomass fraction and the DNA-based one was found for each microbial species. These linearities were supposed to enable us to estimate the nitrifier concentrations of the activated sludge systems by using the DNA analytical method. | |||||||
| 言語 | en | |||||||
| 学位名 | ||||||||
| 言語 | ja | |||||||
| 学位名 | 博士(工学) | |||||||
| item_10006_degree_grantor_9 | ||||||||
| 学位授与機関識別子Scheme | kakenhi | |||||||
| 学位授与機関識別子 | 27101 | |||||||
| 言語 | ja | |||||||
| 学位授与機関名 | 北九州市立大学 | |||||||
| 学位授与年月日 | ||||||||
| 学位授与年月日 | 2025-03-25 | |||||||
| dissertation_number | ||||||||
| 学位授与番号 | 甲第302号 | |||||||
| 出版タイプ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
