Temperature dependence of nitrification in a membrane-aerated biofilm reactor.
community composition
mass transfer
membrane-aerated biofilm
nitrification rate
temperature dependence
wastewater treatment
Journal
Frontiers in microbiology
ISSN: 1664-302X
Titre abrégé: Front Microbiol
Pays: Switzerland
ID NLM: 101548977
Informations de publication
Date de publication:
2023
2023
Historique:
received:
02
12
2022
accepted:
20
02
2023
medline:
12
5
2023
pubmed:
12
5
2023
entrez:
11
5
2023
Statut:
epublish
Résumé
The membrane-aerated biofilm reactor (MABR) is a novel method for the biological treatment of wastewaters and has been successfully applied for nitrification. To improve the design and adaptation of MABR processes for colder climates and varying temperatures, the temperature dependence of a counter-diffusional biofilm's nitrification performance was investigated. A lab-scale MABR system with silicone hollow fibre membranes was operated at various temperatures between 8 and 30°C, and batch tests were performed to determine the ammonia oxidation kinetics. Biofilm samples were taken at 8 and 24°C and analysed with 16S rRNA sequencing to monitor changes in the microbial community composition, and a mathematical model was used to study the temperature dependence of mass transfer. A high nitrification rate (3.08 g N m
Identifiants
pubmed: 37168114
doi: 10.3389/fmicb.2023.1114647
pmc: PMC10165249
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1114647Informations de copyright
Copyright © 2023 Németh, Ainsworth, Ravishankar, Lens and Heffernan.
Déclaration de conflit d'intérêts
AN, JA, and BH were employed by OxyMem Ltd. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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