DOI: 10.1016/j.marpolbul.2017.01.075
Scopus记录号: 2-s2.0-85011096824
论文题名: Performance of the dominant bacterial species and microbial community in autotrophic denitrification coupled with iron cycle in immobilized systems
作者: Su J.F. ; Cheng C. ; Huang T. ; Wei L.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2017
卷: 117, 期: 2018-01-02 起始页码: 88
结束页码: 97
语种: 英语
英文关键词: Autotrophic denitrification
; Immobilized systems
; Iron cycle
; Klebsiella sp. FC61
; Microbial community
Scopus关键词: Denitrification
; Iron
; Microorganisms
; Nitrates
; Reaction rates
; Autotrophic denitrification
; Community structures
; Iron cycle
; Iron reducing bacteria
; Klebsiella sp
; Microbial communities
; Microbial distribution
; Nitrate concentration
; Bacteria
; iron
; magnetite
; nitrate
; iron
; nitric acid derivative
; autotrophy
; bacterium
; concentration (composition)
; denitrification
; iron
; microbial community
; nitrate
; performance assessment
; Article
; autotrophy
; bacterial metabolism
; community structure
; controlled study
; denitrification
; Klebsiella
; microbial community
; microbial diversity
; nonhuman
; principal coordinate analysis
; reactor
; reduction (chemistry)
; species richness
; autotrophy
; bioreactor
; chemistry
; immobilized cell
; metabolism
; microbiology
; Bacteria (microorganisms)
; Klebsiella
; Klebsiella sp.
; Autotrophic Processes
; Bioreactors
; Cells, Immobilized
; Denitrification
; Iron
; Klebsiella
; Nitrates
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: We used three stable reactors to investigate the rates of nitrate removal coupled with iron cycle and the subsequent influence of the reaction on bacterial communities. The iron-reducing bacterium Klebsiella sp. FC61 was immobilized on the reactor columns of the experimental groups B (only Klebsiella) and C (Klebsiella + magnetite). With the fluctuation of Fe2 + to Fe3+ (iron cycle), the average nitrate removal efficiency increased from 73.22% to 93.91% and 86.92% to 97.84% in groups B and C, respectively, as the influent nitrate concentration decreased from 40 to 10 mg/L. However, the average rate of nitrate removal showed the opposite trend (from 2.08 mg/L/h to 0.67 mg/L/h and 2.41 mg/L/h to 0.69 mg/L/h in groups B and C, respectively) as the influent nitrate concentration decreased. Analysis of microbial distribution and community structures indicated that the population of Klebsiella sp. increased in groups B (from 18.21% to 41.21%) and C (from 25.43% to 46.80%) and contributed to the effective removal of nitrate in the reactors. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/87685
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an, China; State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin, China
Recommended Citation:
Su J.F.,Cheng C.,Huang T.,et al. Performance of the dominant bacterial species and microbial community in autotrophic denitrification coupled with iron cycle in immobilized systems[J]. Marine Pollution Bulletin,2017-01-01,117(2018-01-02)