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dc.contributor.authorLu, Huifengen_US
dc.contributor.authorLi, Yiyuen_US
dc.contributor.authorShan, Xiaoyuen_US
dc.contributor.authorAbbas, Ghulamen_US
dc.contributor.authorZeng, Zhuoen_US
dc.contributor.authorKang, Daen_US
dc.contributor.authorWang, Yayien_US
dc.contributor.authorZheng, Pingen_US
dc.contributor.authorZhang, Mengen_US
dc.identifier.citationLu, H., Li, Y., Shan, X., Abbas, G., Zeng, Z., Kang, D., Wang, Y., Zheng, P. & Zhang, M. (2019). A holistic analysis of ANAMMOX process in response to salinity : from adaptation to collapse. Separation and Purification Technology, 215, 342-350.
dc.description.abstractThe application of anaerobic ammonium oxidation (ANAMMOX) process to industrial wastewater treatment usually faces the challenge of high salinity. However, most of the current ANAMMOX sludge was enriched from low-salinity water, resulting in the critical gap between the inoculum and saline wastewater. In this work, an ANAMMOX reactor fed with inoculum enriched from low-salinity water successfully adapted to saline wastewater (500 mmol/L NaCl, 2.92%) after a long-term stepwise acclimatization. The nitrogen removal rate and total nitrogen removal efficiency reached 9.72 kg·m⁻³·d⁻¹ and 80.90%, respectively. However, further salinity increase to 600 mmol/L caused a collapse of reactor performance. The proportion of inorganic matters improved along with the increase of salinity, which might be attributed to the compact particles observed in the microstructure of ANAMMOX sludge. A microbial community succession occurred in response to the increase of salinity. When the salinity increased to 160 mmol/L, the dominant functional bacteria shifted from Candidatus Kuenenia to unclassified Brocadiaceae, which was supposed to be salt-tolerant. The up and down regulations of polysaccharides and ζ potential in EPS were positive strategies for salinity adaptation of ANAMMOX bacteria. However, the barrier of seawater salinity (3–5%) could not be overcome. The present work would provide a holistic view for the enrichment of salt-tolerant ANAMMOX bacteria and help in the selection of seeding sludge for the treatment of saline wastewater by ANAMMOX process.en_US
dc.relation.ispartofSeparation and Purification Technologyen_US
dc.rights© 2019 Elsevier B.V. All rights reserved.en_US
dc.subjectEngineering::Environmental engineeringen_US
dc.titleA holistic analysis of ANAMMOX process in response to salinity : from adaptation to collapseen_US
dc.typeJournal Articleen
dc.contributor.researchNanyang Environment and Water Research Instituteen_US
dc.contributor.researchAdvanced Environmental Biotechnology Centre (AEBC)en_US
dc.subject.keywordsAnaerobic Ammonium Oxidationen_US
dc.description.acknowledgementThis work was supported by the National Natural Science Foundation of China (Grant: numbers: 51608474, 51578484 and 51778563), State Key Laboratory of Pollution Control and Resource Reuse Foundation (Grant number: PCRRF16011), Sichuan Provincial Key Lab of Process Equipment and Control Foundation (Grant number: GK201617), and Research Funds for Central Universities (Grant number: 2017xzzx010-03).en_US
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