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Response and Adaptation of Microbial Community in a CANON Reactor Exposed to an Extreme Alkaline Shock
Joint Authors
Zhang, Zhaoji
Yang, Ruili
Mao, Wenlong
Wang, Xiaojun
Wu, Junbin
Chen, Shaohua
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-01
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Responses of a microbial community in the completely autotrophic nitrogen removal over nitrite (CANON) process, which was shocked by a pH of 11.0 for 12 h, were investigated.
During the recovery phase, the performance, anaerobic ammonia oxidation (anammox) activity, microbial community, and correlation of bacteria as well as the influencing factors were evaluated synchronously.
The performance of the CANON process deteriorated rapidly with a nitrogen removal rate (NRR) of 0.13 kg·m-3·d-1, and Firmicutes, spore-forming bacteria, were the dominant phyla after alkaline shock.
However, it could self-restore within 107 days after undergoing four stages, at which Planctomycetes became dominant with a relative abundance of 64.62%.
Network analysis showed that anammox bacteria (Candidatus Jettenia, Kuenenia, and Brocadia) were positively related to some functional bacteria such as Nitrosomonas, SM1A02, and Calorithrix.
Canonical correspondence analysis presented a strong correlation between the microbial community and influencing factors during the recovery phase.
With the increase of nitrogen loading rate, the decrease of free nitrous acid and the synergistic effects, heme c content, specific anammox activity (SAA), NRR, and the abundance of dominant genus increased correspondingly.
The increase of heme c content regulates the quorum sensing system, promotes the secretion of extracellular polymeric substances, and further improves SAA, NRR, and the relative abundance of the dominant genus.
This study highlights some implications for the recovery of the CANON reactor after being exposed to an alkaline shock.
American Psychological Association (APA)
Yang, Ruili& Mao, Wenlong& Wang, Xiaojun& Zhang, Zhaoji& Wu, Junbin& Chen, Shaohua. 2020. Response and Adaptation of Microbial Community in a CANON Reactor Exposed to an Extreme Alkaline Shock. Archaea،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1130478
Modern Language Association (MLA)
Yang, Ruili…[et al.]. Response and Adaptation of Microbial Community in a CANON Reactor Exposed to an Extreme Alkaline Shock. Archaea No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1130478
American Medical Association (AMA)
Yang, Ruili& Mao, Wenlong& Wang, Xiaojun& Zhang, Zhaoji& Wu, Junbin& Chen, Shaohua. Response and Adaptation of Microbial Community in a CANON Reactor Exposed to an Extreme Alkaline Shock. Archaea. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1130478
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1130478