DOI: 10.1016/j.watres.2018.02.023
Scopus记录号: 2-s2.0-85042273544
论文题名: Microbial community characterization of ozone-biofiltration systems in drinking water and potable reuse applications
作者: Gerrity D. ; Arnold M. ; Dickenson E. ; Moser D. ; Sackett J.D. ; Wert E.C.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 135 起始页码: 207
结束页码: 219
语种: 英语
英文关键词: 16S rRNA gene sequencing
; Biofiltration
; Drinking water
; Microbial community
; Ozone
; Wastewater
Scopus关键词: Activated carbon
; Activated carbon treatment
; Biofilters
; Biofiltration
; Effluents
; Genes
; Microorganisms
; Nitrogen fixation
; Ozone
; Ozone water treatment
; Ozonization
; RNA
; Wastewater
; Wastewater treatment
; Water conservation
; Water filtration
; Water quality
; 16S rRNA gene sequencing
; Biofiltration systems
; Extracellular polymeric substances
; Microbial communities
; Microbial community characterizations
; Microbial community structures
; Positive correlations
; Wastewater treatment facilities
; Potable water
; bacterial RNA
; drinking water
; ozone
; RNA 16S
; charcoal
; drinking water
; ozone
; bacterium
; biofiltration
; community structure
; drinking water
; exopolymer
; genetic analysis
; microbial community
; microbial ecology
; oxidation
; ozone
; public health
; relative abundance
; wastewater
; wastewater treatment
; Acidobacteria
; Article
; bacterium
; Bacteroidetes
; biofiltration
; Bradyrhizobium
; chlorination
; Chloroflexi
; controlled study
; cyanobacterium
; dynamics
; Firmicutes
; Gemmatimonadetes
; gene sequence
; Legionella
; microbial community
; microbial diversity
; Neochlamydia
; nitrogen-fixing bacterium
; Nitrospirae
; nonhuman
; ozonation
; Planctomycetes
; priority journal
; Proteobacteria
; waste water recycling
; water quality
; biodiversity
; chemistry
; classification
; filtration
; genetics
; isolation and purification
; metabolism
; microbiology
; procedures
; waste water
; water management
; Bacteroidetes
; Bradyrhizobium
; Chloroflexi
; Chloroflexi (class)
; Cyanobacteria
; Firmicutes
; Legionella
; Neochlamydia
; Planctomycetes
; Proteobacteria
; Bacteria
; Biodiversity
; Charcoal
; Drinking Water
; Filtration
; Ozone
; Waste Water
; Water Purification
; Water Quality
英文摘要: Microbial community structure in the ozone-biofiltration systems of two drinking water and two wastewater treatment facilities was characterized using 16S rRNA gene sequencing. Collectively, these datasets enabled comparisons by facility, water type (drinking water, wastewater), pre-oxidation (ozonation, chlorination), media type (anthracite, activated carbon), media depth, and backwash dynamics. Proteobacteria was the most abundant phylum in drinking water filters, whereas Bacteroidetes, Chloroflexi, Firmicutes, and Planctomycetes were differentially abundant in wastewater filters. A positive correlation was observed between media depth and relative abundance of Cyanobacteria in drinking water filters, but there was only a slight increase in one alpha diversity metric with depth in the wastewater filters. Media type had a significant effect on beta but not alpha diversity in drinking water and wastewater filters. Pre-ozonation caused a significant decrease in alpha diversity in the wastewater filters, but the effect on beta diversity was not statistically significant. An evaluation of backwash dynamics resulted in two notable observations: (1) endosymbionts such as Neochlamydia and Legionella increased in relative abundance following backwashing and (2) nitrogen-fixing Bradyrhizobium dominated the microbial community in wastewater filters operated with infrequent backwashing. Bradyrhizobium is known to generate extracellular polymeric substances (EPS), which may adversely impact biofilter performance and effluent water quality. These findings have important implications for public health and the operation and resiliency of biofiltration systems. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112881
Appears in Collections: 气候减缓与适应
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作者单位: Department of Civil and Environmental Engineering and Construction, University of Nevada, Las Vegas, Box 454015, 4505 S. Maryland Parkway, Las Vegas, NV 89154-4015, United States; Applied Research and Development Center, Southern Nevada Water Authority, P.O. Box 99954, Las Vegas, NV 89193, United States; Desert Research Institute, 755 E. Flamingo Rd. Las VegasNV 89119, United States; School of Life Sciences, University of Nevada, Las Vegas, 4505 S. Maryland Parkway, Las Vegas, NV 89154-4015, United States
Recommended Citation:
Gerrity D.,Arnold M.,Dickenson E.,et al. Microbial community characterization of ozone-biofiltration systems in drinking water and potable reuse applications[J]. Water Research,2018-01-01,135