Different bioaugmentation regimes that mitigate ammonium/salt inhibition in repeated batch anaerobic digestion: Generic converging trend of microbial communities

Li, Zi Yan; Nagao, Shintaro; Inoue, Daisuke; Ike, Michihiko

doi:https://doi.org/10.1016/j.biortech.2024.131481

Different bioaugmentation regimes that mitigate ammonium/salt inhibition in repeated batch anaerobic digestion: Generic converging trend of microbial communities

Li, Zi Yan; Nagao, Shintaro; Inoue, Daisuke et al.

Bioresource Technology, 2024, 413, 131481

アクセス数:81件（2025-05-19 00:36 集計）

固定URL: https://hdl.handle.net/11094/98336

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タイトル	Different bioaugmentation regimes that mitigate ammonium/salt inhibition in repeated batch anaerobic digestion: Generic converging trend of microbial communities
著者	著者名 Li, Zi Yan
	著者名 Nagao, Shintaro
	NRID 1000070448091 1000070448091 ORCID 0000-0002-9216-8198 0000-0002-9216-8198 researchmap permalink DaisukeINOUE DaisukeINOUE Scopus Author ID 55723196300 55723196300 著者名 Inoue, Daisuke
	NRID 1000040222856 1000040222856 ORCID 0000-0001-6237-8103 0000-0001-6237-8103 researchmap permalink ikemichi ikemichi Scopus Author ID 55551254800 55551254800 著者名 Ike, Michihiko
キーワード等	Biogas recovery
	Deteriorated steady state
	Inhibitory condition
	Inoculum dosing strategy
	Key enzyme prediction
内容	Li Z.Y., Nagao S., Inoue D., et al. Different bioaugmentation regimes that mitigate ammonium/salt inhibition in repeated batch anaerobic digestion: Generic converging trend of microbial communities. Bioresource Technology 413, 131481 (2024); https://doi.org/10.1016/j.biortech.2024.131481.
抄録	Bioaugmentation regimes (i.e., dosage, repetition, and timing) in AD must be optimized to ensure their effectiveness. Although previous studies have investigated these aspects, most have focused exclusively on short-term effects, with some reporting conflicting conclusions. Here, AD experiments of three consecutive repeated batches were conducted to determine the effect of bioaugmentation regimes under ammonium/salt inhibition conditions. A positive correlation between reactor performance and inoculum dosage was confirmed in the first batch, which diminished in subsequent batches for both inhibitors. Moreover, a diminishing marginal effect was observed with repeated inoculum introduction. While the bacterial community largely influenced the reactor performance, the archaeal community exhibited only a minor impact. Prediction of the key enzyme abundances suggested an overall decline in different AD steps. Overall, repeated batch experiments revealed that a homogeneous bacterial community deteriorated the AD process during long-term operation. Thus, a balanced bacterial community is key for efficient methane production.
出版者	Elsevier Ltd
収録物名	Bioresource Technology
巻(号)	413
ページ	131481
刊行年月	2024-12-01
言語	英語
ハンドルURL	https://hdl.handle.net/11094/98336
PISSN	09608524
eISSN	18732976
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1016/j.biortech.2024.131481
アクセス権	open access
権利情報	This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

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資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCTERMS.bibliographicCitation	Bioresource Technology. 2024, 413, p. 131481
DC.title	Different bioaugmentation regimes that mitigate ammonium/salt inhibition in repeated batch anaerobic digestion: Generic converging trend of microbial communities
DC.creator	Li, Zi Yan
	Nagao, Shintaro
	Inoue, Daisuke
	Ike, Michihiko
DC.publisher	Elsevier Ltd
DC.language' scheme='DCTERMS.RFC1766	英語
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2024-12-01
DC.identifier	https://doi.org/10.1016/j.biortech.2024.131481
DC.subject	Biogas recovery
	Deteriorated steady state
	Inhibitory condition
	Inoculum dosing strategy
	Key enzyme prediction
DC.description	Li Z.Y., Nagao S., Inoue D., et al. Different bioaugmentation regimes that mitigate ammonium/salt inhibition in repeated batch anaerobic digestion: Generic converging trend of microbial communities. Bioresource Technology 413, 131481 (2024); https://doi.org/10.1016/j.biortech.2024.131481.
DCTERMS.abstract	Bioaugmentation regimes (i.e., dosage, repetition, and timing) in AD must be optimized to ensure their effectiveness. Although previous studies have investigated these aspects, most have focused exclusively on short-term effects, with some reporting conflicting conclusions. Here, AD experiments of three consecutive repeated batches were conducted to determine the effect of bioaugmentation regimes under ammonium/salt inhibition conditions. A positive correlation between reactor performance and inoculum dosage was confirmed in the first batch, which diminished in subsequent batches for both inhibitors. Moreover, a diminishing marginal effect was observed with repeated inoculum introduction. While the bacterial community largely influenced the reactor performance, the archaeal community exhibited only a minor impact. Prediction of the key enzyme abundances suggested an overall decline in different AD steps. Overall, repeated batch experiments revealed that a homogeneous bacterial community deteriorated the AD process during long-term operation. Thus, a balanced bacterial community is key for efficient methane production.
DC.rights	This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
DC.format	98336
citation_title	Different bioaugmentation regimes that mitigate ammonium/salt inhibition in repeated batch anaerobic digestion: Generic converging trend of microbial communities
citation_author	Li, Zi Yan
	Nagao, Shintaro
	Inoue, Daisuke
	Ike, Michihiko
citation_publisher	Elsevier Ltd
citation_language	英語
citation_date	2024-12-01
citation_journal_title	Bioresource Technology
citation_volume	413
citation_firstpage	131481
citation_doi	https://doi.org/10.1016/j.biortech.2024.131481
citation_public_url	https://hdl.handle.net/11094/98336