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ID 51060
著者
Shoiful, Ahmad
Ohta, Taiki
Kambara, Hiromi
Matsushita, Shuji
Kindaichi, Tomonori 大学院先進理工系科学研究科 広大研究者総覧
Ozaki, Noriatsu 大学院先進理工系科学研究科 広大研究者総覧
Aoi, Yoshiteru 大学院統合生命科学研究科 広大研究者総覧
Imachi, Hiroyuki
Ohashi, Akiyoshi 大学院先進理工系科学研究科 広大研究者総覧
キーワード
Biological manganese oxidation
Down-flow hanging sponge reactor
K-medium
Manganese-oxidizing bacteria
Methanol
Sterilized activated sludge
抄録(英)
Three different organic substrates, K-medium, sterilized activated sludge (SAS), and methanol, were examined for utility as substrates for enriching manganese-oxidizing bacteria (MnOB) in an open bioreactor. The differences in Mn(II) oxidation performance between the substrates were investigated using three down-flow hanging sponge (DHS) reactors continuously treating artificial Mn(II)-containing water over 131 days. The results revealed that all three substrates were useful for enriching MnOB. Surprisingly, we observed only slight differences in Mn(II) removal between the substrates. The highest Mn(II) removal rate for the SAS-supplied reactor was 0.41 kg Mn⋅m−3⋅d−1, which was greater than that of K-medium, although the SAS performance was unstable. In contrast, the methanol-supplied reactor had more stable performance and the highest Mn(II) removal rate. We conclude that multiple genera of Comamonas, Pseudomonas, Mycobacterium, Nocardia and Hyphomicrobium play a role in Mn(II) oxidation and that their relative predominance was dependent on the substrate. Moreover, the initial inclusion of abiotic-MnO2 in the reactors promoted early MnOB enrichment.
内容記述
This research was supported by the Japan Society for the Promotion of Science (Grant-in-Aid for Scientific Research (A) Grant Number 17H01300 and Challenging Research (Exploratory) Grant Number 17H06214) and the Ministry of the Environment, Japan (the Environment Research and Technology Development Fund No. 2–3K133004) .
掲載誌名
Journal of Environmental Management
259巻
開始ページ
109771
出版年月日
2020-04-01
出版者
Elsevier
ISSN
0301-4797
出版者DOI
PubMedID
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
© 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
This is not the published version. Please cite only the published version. この論文は出版社版ではありません。引用の際には出版社版をご確認、ご利用ください。
関連情報URL
部局名
先進理工系科学研究科
統合生命科学研究科
備考
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