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ID 41297
本文ファイル
著者
Awata, Takanori
Goto, Yumiko
Ozaki, Noriatsu 大学院工学研究院 広大研究者総覧
Ohashi, Akiyoshi 大学院工学研究院
キーワード
Anammox
membrane bioreactor
low temperature
NDC
建設工学・土木工学
抄録(英)
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.
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).
掲載誌名
Water Science and Technology
72巻
12号
開始ページ
2148
終了ページ
2153
出版年月日
2015-12
出版者
IWA Publishing
ISSN
0273-1223
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
author
権利情報
Copyright (c) IWA Publishing 2015
関連情報URL(IsVersionOf)
http://doi.org/10.2166/wst.2015.436
部局名
工学研究科