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dc.contributor.authorWang, Qilin
dc.contributor.authorSong, Kang
dc.contributor.authorHao, Xiaodi
dc.contributor.authorWei, Jing
dc.contributor.authorPijuan, Maite
dc.contributor.authorvan Loosdrecht, Mark CM
dc.contributor.authorZhao, Huijun
dc.date.accessioned2019-06-19T13:00:44Z
dc.date.available2019-06-19T13:00:44Z
dc.date.issued2018
dc.identifier.issn0045-6535
dc.identifier.doi10.1016/j.chemosphere.2018.02.171
dc.identifier.urihttp://hdl.handle.net/10072/373355
dc.description.abstractThe decreased activity (i.e. decay) of anaerobic ammonium oxidation (Anammox) bacteria during starvation can be attributed to death (i.e. decrease in the amount of viable bacteria) and activity decay (i.e. decrease in the specific activity of viable bacteria). Although they are crucial for the operation of the Anammox process, they have never been comprehensively investigated. This study for the first time experimentally assessed death and activity decay of the Anammox bacteria during 84 days’ starvation stress based on ammonium removal rate, Live/Dead staining and fluorescence in-situ hybridization. The anaerobic and aerobic decay rates of Anammox bacteria were determined as 0.015 ± 0.001 d−1 and 0.028 ± 0.001 d−1, respectively, indicating Anammox bacteria would lose their activity more quickly in the aerobic starvation than in the anaerobic starvation. The anaerobic and aerobic death rates of Anammox bacteria were measured at 0.011 ± 0.001 d−1 and 0.025 ± 0.001 d−1, respectively, while their anaerobic and aerobic activity decay rates were determined at 0.004 ± 0.001 d−1 and 0.003 ± 0.001 d−1, respectively. Further analysis revealed that death accounted for 73 ± 4% and 89 ± 5% of the decreased activity of Anammox bacteria during anaerobic and aerobic starvations, and activity decay was only responsible for 27 ± 4% and 11 ± 5% of the decreased Anammox activity, respectively, over the same starvation periods. These deeply shed light on the response of Anammox bacteria to the starvation stress, which would facilitate operation and optimization of the Anammox process.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherElsevier
dc.publisher.placeUnited Kingdom
dc.relation.ispartofpagefrom25
dc.relation.ispartofpageto31
dc.relation.ispartofjournalChemosphere
dc.relation.ispartofvolume201
dc.subject.fieldofresearchEnvironmental Technologies
dc.subject.fieldofresearchcode090703
dc.titleEvaluating death and activity decay of Anammox bacteria during anaerobic and aerobic starvation
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dcterms.licensehttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.description.versionPost-print
gro.facultyGriffith Sciences, School of Engineering and Built Environment
gro.rights.copyright© 2018 Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence (http://creativecommons.org/licenses/by-nc-nd/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.
gro.hasfulltextFull Text
gro.griffith.authorZhao, Huijun
gro.griffith.authorWang, Qilin


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