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Effects of dissolved oxygen and pH on nitrous oxide production rates in autotrophic partial nitrification granules

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Supplementary Fig. S3. .pdf34.44 kBPDF見る/開く
Supplementary Figs. S1 and S2. .pdf148.72 kBPDF見る/開く
Supplementary Table S2. .pdf12.74 kBPDF見る/開く
Supplementary Table S1. .pdf8.3 kBPDF見る/開く
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Rathnayake 2015 Bioresource Technology 197 15–22.pdf890.5 kBPDF見る/開く
この文献へのリンクには次のURLを使用してください:http://hdl.handle.net/2115/67732

タイトル: Effects of dissolved oxygen and pH on nitrous oxide production rates in autotrophic partial nitrification granules
著者: Rathnayake, Rathnayake M.L.D. 著作を一覧する
Oshiki, Mamoru 著作を一覧する
Ishii, Satoshi 著作を一覧する
Segawa, Takahiro 著作を一覧する
Satoh, Hisashi 著作を一覧する
Okabe, Satoshi 著作を一覧する
キーワード: N2O emissions
autotrophic partial nitrification granule
dissolved oxygen effect
16S rRNA gene deep sequencing
N2O microsensor
発行日: 2015年12月
出版者: Elsevier
誌名: Bioresource Technology
巻: 197
開始ページ: 15
終了ページ: 22
出版社 DOI: 10.1016/j.biortech.2015.08.054
抄録: The effects of dissolved oxygen (DO) and pH on nitrous oxide (N2O) production rates and pathways in autotrophic partial nitrification (PN) granules were investigated at the granular level. N2O was primarily produced by betaproteobacterial ammonia-oxidizing bacteria, mainly Nitrosomonas europaea, in the oxic surface layer (<200 μm) of the autotrophic PN granules. N2O production increased with increasing bulk DO concentration owing to activation of the ammonia (i.e., hydroxylamine) oxidation in this layer. The highest N2O emissions were observed at pH 7.5, although the ammonia oxidation rate was unchanged between pH 6.5 and 8.5. Overall, the results of this study suggest that in situ analyses of PN granules are essential to gaining insight into N2O emission mechanisms in a granule.
Rights: © 2015, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/67732
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 佐藤 久

 

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