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dc.contributor.authorNie, WB
dc.contributor.authorXie, GJ
dc.contributor.authorDing, J
dc.contributor.authorLu, Y
dc.contributor.authorLiu, BF
dc.contributor.authorXing, DF
dc.contributor.authorWang, Q
dc.contributor.authorHan, HJ
dc.contributor.authorYuan, Z
dc.contributor.authorRen, NQ
dc.date.accessioned2019-10-03T03:15:39Z
dc.date.available2019-10-03T03:15:39Z
dc.date.issued2019
dc.identifier.issn0160-4120en_US
dc.identifier.doi10.1016/j.envint.2019.105107en_US
dc.identifier.urihttp://hdl.handle.net/10072/388023
dc.description.abstractIntegrating denitrifying anaerobic methane oxidation (DAMO) with Anammox provides alternative solutions to simultaneously remove nitrogen and mitigate methane emission from wastewater treatment. However, the practical application of DAMO has been greatly limited by slow-growing DAMO microorganisms living on low-solubility gaseous methane. In this work, DAMO and Anammox co-cultures were fast enriched using high concentration of mixed sludges from various environments, and achieved nitrogen removal rate of 76.7 mg NH4+-N L−1 d−1 and 87.9 mg NO3−-N L−1 d−1 on Day 178. Subsequently, nitrogen removal rate significantly decreased but recovered quickly through increasing methane flushing frequency, indicating methane availability could be the limiting factor of DAMO activity. Thus, this work developed a novel Membrane Aerated Membrane Bioreactor (MAMBR), which equipped with gas permeable membrane for efficient methane delivery and ultrafiltration membrane for complete biomass retention. After inoculated with enriched sludge, nitrogen removal rates of MAMBR were significantly enhanced to 126.9 mg NH4+-N L−1 d−1 and 158.8 mg NO3−-N L−1 d−1 by membrane aeration in batch test. Finally, the MAMBR was continuously fed with synthetic wastewater containing ammonium and nitrite to mimic the effluent from partial nitritation. When steady state with nitrogen loading rate of 2500 mg N L−1 d−1 was reached, the MAMBR achieved total nitrogen removal of 2496.7 mg N L−1 d−1, with negligible nitrate in effluent (~6.5 mg NO3−-N L−1). 16S rRNA amplicon sequencing and fluorescence in situ hybridization revealed the microbial community dynamics during enrichment and application. The high performance of nitrogen removal (2.5 kg N m−3 d−1) within 200 days operation and excellent biomass retention capacity (8.67 kg VSS m−3) makes the MAMBR promising for practical application of DAMO and Anammox in wastewater treatment.en_US
dc.description.peerreviewedYesen_US
dc.languageEnglishen_US
dc.publisherElsevieren_US
dc.publisher.placeUnited Kingdom
dc.relation.ispartofpagefrom105107: 1en_US
dc.relation.ispartofpageto105107: 10en_US
dc.relation.ispartofjournalEnvironment Internationalen_US
dc.relation.ispartofvolume132en_US
dc.subject.fieldofresearchEnvironmental Sciencesen_US
dc.subject.fieldofresearchcode05en_US
dc.subject.keywordsAnammoxen_US
dc.subject.keywordsApplicationen_US
dc.subject.keywordsDenitrifying anaerobic methane oxidationen_US
dc.subject.keywordsMembrane aerated membrane bioreactoren_US
dc.subject.keywordsNitrogen removalen_US
dc.titleHigh performance nitrogen removal through integrating denitrifying anaerobic methane oxidation and Anammox: from enrichment to applicationen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Articlesen_US
dcterms.bibliographicCitationNie, WB; Xie, GJ; Ding, J; Lu, Y; Liu, BF; Xing, DF; Wang, Q; Han, HJ; Yuan, Z; Ren, NQ, High performance nitrogen removal through integrating denitrifying anaerobic methane oxidation and Anammox: from enrichment to application, Environment International, 2019, 132, pp. 105107: 1-105107: 10en_US
dcterms.dateAccepted2019-08-19
dcterms.licensehttps://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.date.updated2019-10-02T04:56:32Z
dc.description.versionPublisheden_US
gro.rights.copyright© The Author(s) 2019. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International (CC BY-NC-ND 4.0) License, which permits unrestricted, non-commercial use, distribution and reproduction in any medium, providing that the work is properly cited.en_US
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gro.griffith.authorWang, Qilin


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