Nitrogen removal using an anammox membrane bioreactor at low temperature
Water Science and Technology 72 巻 12 号
2148-2153 頁
2015-12 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Nitrogen removal using an anammox membrane bioreactor at low temperature
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| 作成者 |
Awata Takanori
Goto Yumiko
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| 収録物名 |
Water Science and Technology
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| 巻 | 72 |
| 号 | 12 |
| 開始ページ | 2148 |
| 終了ページ | 2153 |
| 抄録 |
Membrane bioreactors (MBRs) have the ability to completely retain biomass and are thus suitable for slowly growing anammox bacteria. In the present study, an anammox MBR was operated to investigate whether the anammox activity would remain stable at low temperature, without anammox biomass washout. The maximum nitrogen removal rates were 6.7 and 1.1 g-N L−1 day−1 at 35 and 15°C, respectively. Fluorescence in situ hybridization and 16S rRNA-based phylogenetic analysis revealed no change in the predominant anammox species with temperature because of the complete retention of anammox biomass in the MBR. These results indicate that the predominant anammox bacteria in the MBR cannot adapt to a low temperature during short-term operation. Conversely, anammox activity recovered rapidly after restoring the temperature from the lower value to the optimal temperature (35°C). The rapid recovery of anammox activity is a distinct advantage of using an MBR anammox reactor.
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| 著者キーワード |
Anammox
membrane bioreactor
low temperature
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| 内容記述 |
This research was partially supported by a Grant-in-Aid for Scientific Research (C) from the Ministry of Education, Culture, Sports, Science and Technology by the Japan Society for the Promotion of Science (JSPS).
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| NDC分類 |
建設工学・土木工学 [ 510 ]
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
IWA Publishing
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| 発行日 | 2015-12 |
| 権利情報 |
Copyright (c) IWA Publishing 2015
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| 出版タイプ | Author’s Original（十分な品質であるとして、著者から正式な査読に提出される版） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 0273-1223
[DOI] 10.2166/wst.2015.436
[DOI] http://doi.org/10.2166/wst.2015.436
～の異版である
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