DOI: 10.1016/j.watres.2017.12.037
Scopus记录号: 2-s2.0-85039717281
论文题名: Achieving high-level nitrogen removal in mainstream by coupling anammox with denitrifying anaerobic methane oxidation in a membrane biofilm reactor
作者: Xie G.-J. ; Liu T. ; Cai C. ; Hu S. ; Yuan Z.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 131 起始页码: 196
结束页码: 204
语种: 英语
英文关键词: Anammox
; Denitrifying anaerobic methane oxidation
; Mainstream
; Membrane biofilm reactor
; Nitrogen removal
Scopus关键词: Bacteria
; Bioassay
; Biofilms
; Bioreactors
; Denitrification
; Effluent treatment
; Effluents
; Fluorescence microscopy
; Methane
; Microorganisms
; Nitrogen
; Oxidation
; RNA
; Wastewater treatment
; Water quality
; 16S rRNA gene sequencing
; Anaerobic ammonium oxidation
; Anaerobic methane oxidations
; ANAMMOX
; Fluorescence in situ hybridization
; Hydraulic retention time
; Mainstream
; Membrane biofilm reactor
; Nitrogen removal
; ammonia
; methane
; nitrate
; nitrite
; nitrogen
; RNA 16S
; ammonium compound
; anoxic conditions
; bacterium
; biofilm
; bioreactor
; concentration (composition)
; denitrification
; membrane
; methane
; nitrogen
; oxidation
; pollutant removal
; wastewater treatment
; anaerobic metabolism
; anaerobic methane oxidation
; anammox bacterium
; Article
; fluorescence in situ hybridization
; gene sequence
; nonhuman
; priority journal
; retention time
; waste component removal
; waste water management
英文摘要: To achieve energy neutral wastewater treatment, mainstream anaerobic ammonium oxidation (anammox) has attracted extensive attention in the past decade. However, the relatively high effluent nitrogen concentration (>10 mg N L-1) remains a significant barrier hindering its practical implementation. A novel technology integrating the anammox and denitrifying anaerobic methane oxidation (DAMO) reactions in a membrane biofilm reactor (MBfR) was developed in this study to enhance the mainstream anammox process. With the hydraulic retention time (HRT) progressively decreased from 12 to 4 h, the total nitrogen (TN) removal rate increased stepwise from 0.09 to 0.28 kg N m−3 d−1, with an effluent TN concentration below 3.0 mg N L-1 achieved. Mass balance analysis showed that 30–60% of the nitrate produced by the anammox reaction was reduced back to nitrite by DAMO archaea, and the anammox and DAMO bacteria were jointly responsible for nitrite removal with contributions of >90% and <10%, respectively. Additionally, the established MBfR was robust and achieved consistently high effluent quality with >90% TN removal when the influent nitrite to ammonium molar ratio varied in the range of 1.17−1.55. Fluorescence in situ hybridization (FISH) and 16S rRNA gene sequencing indicated that anammox bacteria, DAMO bacteria and DAMO archaea jointly dominated the biofilm, and were likely the key contributors to nitrogen removal. This is the first study that a high nitrogen removal rate (>0.2 kg N m−3 d−1) and satisfactory effluent quality (∼3 mg TN L-1) were achieved simultaneously by integrating anammox and DAMO reactions in mainstream wastewater treatment. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113008
Appears in Collections: 气候减缓与适应
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作者单位: Advanced Water Management Centre, The University of Queensland, St. Lucia, Queensland 4072, Australia; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China
Recommended Citation:
Xie G.-J.,Liu T.,Cai C.,et al. Achieving high-level nitrogen removal in mainstream by coupling anammox with denitrifying anaerobic methane oxidation in a membrane biofilm reactor[J]. Water Research,2018-01-01,131