DOI: 10.1016/j.watres.2018.03.010
Scopus记录号: 2-s2.0-85046019787
论文题名: Denitrifying capabilities of Tetrasphaera and their contribution towards nitrous oxide production in enhanced biological phosphorus removal processes
作者: Marques R. ; Ribera-Guardia A. ; Santos J. ; Carvalho G. ; Reis M.A.M. ; Pijuan M. ; Oehmen A.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 137 起始页码: 262
结束页码: 272
语种: 英语
英文关键词: Denitrification
; Electron competition
; Enhanced biological phosphorus removal (EBPR)
; Nitrous oxide (N2O)
; Polyphosphate accumulating organisms (PAO)
; Tetrasphaera-related bacteria
Scopus关键词: Bacteria
; Denitrification
; Electrons
; Nitrogen oxides
; Wastewater treatment
; Accumulibacter
; Anoxic P-uptake
; Denitrification capacity
; Electron acceptor
; Enhanced biological phosphorus removal
; Nitrous oxide
; Nitrous oxide production
; Polyphosphate-accumulating organisms
; Biological water treatment
; acetic acid
; casein hydrolysate
; glycogen
; nitrate
; nitric oxide
; nitrite
; nitrogen
; nitrous oxide
; organic carbon
; phosphate
; phosphorus
; polyphosphate
; propionic acid
; nitrous oxide
; phosphorus
; bacterium
; denitrification
; electron
; nitrous oxide
; phosphorus
; pollutant removal
; Article
; bacterium culture
; carbon source
; denitrification
; denitrifying bacterium
; electron
; electron transport
; enhanced biological phosphorus removal
; microbial community
; nonhuman
; oxygen consumption
; priority journal
; reactor operation
; sludge
; suspended particulate matter
; Tetrasphaera
; waste component removal
; waste water management
; Actinobacteria
; denitrification
; metabolism
; sewage
; water pollutant
; Bacteria (microorganisms)
; Candidatus Competibacter
; Tetrasphaera
; Actinobacteria
; Denitrification
; Glycogen
; Nitrites
; Nitrogen
; Nitrous Oxide
; Phosphorus
; Polyphosphates
; Waste Disposal, Fluid
; Water Pollutants, Chemical
英文摘要: Denitrifying enhanced biological phosphorus removal (EBPR) systems can be an efficient means of removing phosphate (P) and nitrate (NO3 −) with low carbon source and oxygen requirements. Tetrasphaera is one of the most abundant polyphosphate accumulating organisms present in EBPR systems, but their capacity to achieve denitrifying EBPR has not previously been determined. An enriched Tetrasphaera culture, comprising over 80% of the bacterial biovolume was obtained in this work. Despite the denitrification capacity of Tetrasphaera, this culture achieved only low levels of anoxic P-uptake. Batch tests with different combinations of NO3 −, nitrite (NO2 −) and nitrous oxide (N2O) revealed lower N2O accumulation by Tetrasphaera as compared to Accumulibacter and Competibacter when multiple electron acceptors were added. Electron competition was observed during the addition of multiple nitrogen electron acceptors species, where P uptake appeared to be slightly favoured over glycogen production in these situations. This study increases our understanding of the role of Tetrasphaera-related organisms in denitrifying EBPR systems. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112822
Appears in Collections: 气候减缓与适应
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作者单位: UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, Caparica, 2829-516, Portugal; ICRA, Institut Català de Recerca de L'Aigua, Parc Científic I Tecnològic de La Universitat de GironaGirona 17003, Spain
Recommended Citation:
Marques R.,Ribera-Guardia A.,Santos J.,et al. Denitrifying capabilities of Tetrasphaera and their contribution towards nitrous oxide production in enhanced biological phosphorus removal processes[J]. Water Research,2018-01-01,137