DOI: 10.1016/j.watres.2018.03.047
Scopus记录号: 2-s2.0-85044532977
论文题名: Sulfide inhibition of nitrite oxidation in activated sludge depends on microbial community composition
作者: Delgado Vela J. ; Dick G.J. ; Love N.G.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 138 起始页码: 241
结束页码: 249
语种: 英语
英文关键词: Nitrification
; Nitritation
; Sulfide
; Wastewater treatment
Scopus关键词: Bacteria
; Nitrification
; Nitrogen removal
; RNA
; Wastewater treatment
; Ammonium oxidizing bacteria
; Inhibition constants
; Microbial communities
; Microbial community composition
; Nitrifying treatment
; Nitritation
; Nitrite-oxidizing bacteria
; Sulfide
; Sulfur compounds
; ammonia monooxygenase
; bacterial protein
; dissolved oxygen
; nitrate reductase
; nitrite
; nucleic acid
; sulfide
; unclassified drug
; nitrite
; RNA 16S
; sulfide
; activated sludge
; bacterium
; community composition
; community response
; experimental study
; genetic analysis
; microbial community
; microbial ecology
; nitrification
; nitrifying bacterium
; nitrite
; nitrogen
; oxidation
; pollutant removal
; species diversity
; sulfide
; wastewater treatment
; wastewater treatment plant
; activated sludge
; anammox bacterium
; Article
; biochemical oxygen demand
; corrosion
; inhibition constant
; microbial community
; nitrification
; Nitrobacter
; Nitrotoga
; nonhuman
; oxidation
; precipitation
; priority journal
; waste water management
; waste water treatment plant
; bacterium
; genetics
; metabolism
; microbiology
; oxidation reduction reaction
; sewage
; Nitrobacter
; Nitrospira
; Bacteria
; Nitrification
; Nitrites
; Oxidation-Reduction
; RNA, Ribosomal, 16S
; Sewage
; Sulfides
; Waste Disposal, Fluid
英文摘要: Increasingly, technologies that use sulfide as an electron donor are being considered for nitrogen removal; however, our understanding of how sulfide affects microbial communities in nitrifying treatment processes is limited. In this study, we used batch experiments to quantify sulfide inhibition of both ammonium oxidizing bacteria (AOB) and nitrite oxidizing bacteria (NOB) using activated sludge from two full-scale treatment plants with distinct treatment processes. The batch experiments showed that NOB were more vulnerable to sulfide inhibition than AOB, and that inhibition constants (KI) for NOB were distinct between the two treatment plants, which also had distinct nitrite oxidizing microbial communities. A Nitrospira-rich, less diverse NOB community was inhibited more by sulfide than a more diverse community rich in Nitrotoga and Nitrobacter. Therefore, sulfide-induced nitritation may be more successful in less diverse, Nitrospira-rich communities. Additionally, sulfide significantly influenced the activity of non-nitrifying microbial community members, as measured by 16S rRNA cDNA sequencing. Overall, these results indicate that sulfide has a strong impact on both nitrification and the activity of the underlying microbial communities, and that the response is community-specific. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112795
Appears in Collections: 气候减缓与适应
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作者单位: Department of Civil and Environmental Engineering, University of Michigan, United States; Department of Earth and Environmental Sciences, University of Michigan, United States
Recommended Citation:
Delgado Vela J.,Dick G.J.,Love N.G.. Sulfide inhibition of nitrite oxidation in activated sludge depends on microbial community composition[J]. Water Research,2018-01-01,138