DOI: 10.1016/j.watres.2018.05.047
Scopus记录号: 2-s2.0-85049298731
论文题名: The changes of bacterial communities and antibiotic resistance genes in microbial fuel cells during long-term oxytetracycline processing
作者: Yan W. ; Guo Y. ; Xiao Y. ; Wang S. ; Ding R. ; Jiang J. ; Gang H. ; Wang H. ; Yang J. ; Zhao F.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 142 起始页码: 105
结束页码: 114
语种: 英语
英文关键词: Antibiotic degradation
; Antibiotic resistance gene
; Electron
; Microbial fuel cell
; Oxytetracycline
Scopus关键词: Antibiotics
; Bacteria
; Biodegradation
; Biological water treatment
; Efficiency
; Effluents
; Electrons
; Genes
; Polymerase chain reaction
; Wastewater treatment
; Antibiotic degradation
; Antibiotic resistance genes
; Bio-electrochemical
; Continuous operation
; Efficiency of removal
; Electrical stimulations
; Oxytetracyclines (OTC)
; Removal efficiencies
; Microbial fuel cells
; acetic acid
; adenosine triphosphate
; oxytetracycline
; RNA 16S
; transposase
; antibiotic resistance
; bacterium
; biodegradation
; cell
; chemical pollutant
; electron
; fuel cell
; microbial activity
; microbial community
; oxytetracycline
; pollutant removal
; processing
; wastewater
; wastewater treatment
; antibiotic resistance
; Article
; bacterial gene
; carbon source
; controlled study
; electrostimulation
; Eubacterium
; gene dosage
; microbial community
; microbial degradation
; microbial fuel cell
; nonhuman
; priority journal
; reactor operation
; waste component removal
; waste water management
; Bacteria (microorganisms)
英文摘要: Microbial fuel cell (MFC) is regarded as a promising alternative for enhancing the removal of antibiotic pollutants. In this study, oxytetracycline served as an electron donor in the anode chamber of MFCs, and after continuous operation for 330 days, the efficiency of removal of 10 mg/L oxytetracycline in MFCs increased to 99.00% in 78 h, whereas removal efficiency of only 58.26% was achieved in microbial controls. Compared to microbial controls, higher ATP concentration and persistent electrical stimulation mainly contributed to bioelectrochemical reactions more rapidly to enhance oxytetracycline removal in MFCs. In addition, the analysis of bacterial communities revealed that Eubacterium spp.—as the main functional bacterial genus responsible for oxytetracycline biodegradation—flourished starting from merely 0.00%–91.69% ± 0.27% (mean ± SD) in MFCs. High-throughput quantitative PCR showed that the normalized copy numbers of total antibiotic resistance genes (ARGs) and mobile genetic elements in MFCs were 1.7364 and 0.0065 copies/cell respectively, which were markedly lower than those in the microbial controls. Furthermore, there was no significant correlation between oxytetracycline concentration in the influent and abundance of ARGs in effluent from MFCs. Nevertheless, Tp614, a transposase gene, was found to be enriched in both MFCs and microbial reactors, suggesting that it may be a common challenge for different biological processes for wastewater treatment. This study therefore showed a lower probability of upregulation and transmission of ARGs in MFCs when compared to a traditional anaerobic microbial treatment. © 2018 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112626
Appears in Collections: 气候减缓与适应
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作者单位: CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; Aquatic EcoHealth Group, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China; University of Chinese Academy of Sciences, Beijing, 100049, China; College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; College of Ecology and Resource Engineering, Wuyi University, Wuyishan, 354300, China
Recommended Citation:
Yan W.,Guo Y.,Xiao Y.,et al. The changes of bacterial communities and antibiotic resistance genes in microbial fuel cells during long-term oxytetracycline processing[J]. Water Research,2018-01-01,142