DOI: 10.1016/j.watres.2017.09.042
Scopus记录号: 2-s2.0-85037122820
论文题名: Medium shapes the microbial community of water filters with implications for effluent quality
作者: Vignola M. ; Werner D. ; Wade M.J. ; Meynet P. ; Davenport R.J.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 129 起始页码: 499
结束页码: 508
语种: 英语
英文关键词: Drinking water quality
; Microbial ecology
; Neutral model
; Water filter
Scopus关键词: Activated carbon
; Activated carbon treatment
; Bandpass filters
; Decay (organic)
; Filters (for fluids)
; Microorganisms
; Organic carbon
; Potable water
; RNA
; Stochastic systems
; Water distribution systems
; Water filtration
; Water quality
; Community composition
; Dissolved organic carbon
; Granular activated carbons
; Microbial communities
; Microbial ecology
; Neutral model
; Trihalomethanes formations
; Water filters
; Effluents
; activated carbon
; drinking water
; RNA 16S
; drinking water
; community composition
; drinking water
; effluent
; filter
; growth
; laboratory method
; microbial community
; microbial ecology
; numerical model
; phylogenetics
; prediction
; water quality
; water treatment
; amplicon
; Article
; bacterial cell
; effluent
; gravity
; Markov chain
; microbial community
; microbial growth
; microbiological parameters
; microbiome
; multidimensional scaling
; nonhuman
; principal component analysis
; principal coordinate analysis
; priority journal
; reactor operation
; water quality
; bacterium
; chemistry
; devices
; filtration
; genetics
; microbiology
; procedures
; water management
; Bacteria (microorganisms)
; Legionella
; Otus
; Bacteria
; Drinking Water
; Filtration
; RNA, Ribosomal, 16S
; Water Microbiology
; Water Purification
; Water Quality
英文摘要: Little is known about the forces that determine the assembly of diverse bacterial communities inhabiting drinking water treatment filters and how this affects drinking water quality. Two contrasting ecological theories can help to understand how natural microbial communities assemble; niche theory and neutral theory, where environmental deterministic factors or stochastic factors predominate respectively. This study investigates the development of the microbial community on two common contrasting filter materials (quartz sand and granular activated carbon-GAC), to elucidate the main factors governing their assembly, through the evaluation of environmental (i.e. filter medium type) and stochastic forces (random deaths, births and immigration). Laboratory-scale filter columns were used to mimic a rapid gravity filter; the microbiome of the filter materials, and of the filter influent and effluent, was characterised using next generation 16S rRNA gene amplicon sequencing and flow-cytometry. Chemical parameters (i.e. dissolved organic carbon, trihalomethanes formation) were also monitored to assess the final effluent quality. The filter communities seemed to be strongly assembled by selection rather than neutral processes, with only 28% of those OTUs shared with the source water detected on the filter medium following predictions using a neutral community model. GAC hosted a phylogenetically more diverse community than sand. The two filter media communities seeded the effluent water, triggering differences in both water quality and community composition of the effluents. Overall, GAC proved to be better than sand in controlling microbial growth, by promoting higher bacterial decay rates and hosting less bacterial cells, and showed better performance for putative pathogen control by leaking less Legionella cells into the effluent water. © 2017 The Authors Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113074
Appears in Collections: 气候减缓与适应
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作者单位: School of Engineering, Newcastle University, Newcastle Upon Tyne, NE1 7RU, United Kingdom; Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstr. 133, Dübendorf, CH-8600, Switzerland; College of Science and Engineering, Division of Infrastructure and Environment, School of Engineering, University of Glasgow, Glasgow, G12 8QQ, United Kingdom
Recommended Citation:
Vignola M.,Werner D.,Wade M.J.,et al. Medium shapes the microbial community of water filters with implications for effluent quality[J]. Water Research,2018-01-01,129