DOI: 10.1016/j.watres.2018.03.001
Scopus记录号: 2-s2.0-85046037808
论文题名: Online fluorescence spectroscopy for the real-time evaluation of the microbial quality of drinking water
作者: Sorensen J.P.R. ; Vivanco A. ; Ascott M.J. ; Gooddy D.C. ; Lapworth D.J. ; Read D.S. ; Rushworth C.M. ; Bucknall J. ; Herbert K. ; Karapanos I. ; Gumm L.P. ; Taylor R.G.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 137 起始页码: 301
结束页码: 309
语种: 英语
英文关键词: Bacteria enumeration
; Drinking water
; Faecal contamination
; Flow cytometry
; Online fluorescence spectroscopy
; Turbidity
Scopus关键词: Amino acids
; Contamination
; Escherichia coli
; Flow cytometry
; Fluorescence
; Fluorescence spectroscopy
; Fluorometers
; Groundwater
; Groundwater pollution
; Quality control
; Turbidity
; Water quality
; Water supply
; Dissolved organic matters
; Faecal contamination
; Microbial contamination
; Microbial quality
; Microbial water quality
; Public water supply
; Real time evaluation
; Turbidity sensors
; Potable water
; cation
; dissolved organic matter
; drinking water
; ground water
; drinking water
; tryptophan
; dissolved organic matter
; drinking water
; fecal coliform
; flow cytometry
; fluorescence spectroscopy
; microbial activity
; real time
; turbidity
; water industry
; water quality
; water supply
; aquifer
; Article
; bacterial cell
; bacterial count
; Escherichia coli
; flow cytometry
; fluorescence spectroscopy
; humic substance
; nonhuman
; online analysis
; priority journal
; time series analysis
; turbidity
; water quality
; water supply
; chemistry
; England
; fluorescence
; microbiology
; procedures
; spectrofluorometry
; water quality
; United Kingdom
; Bacteria (microorganisms)
; Escherichia coli
; Drinking Water
; England
; Escherichia coli
; Flow Cytometry
; Fluorescence
; Groundwater
; Spectrometry, Fluorescence
; Tryptophan
; Water Microbiology
; Water Quality
; Water Supply
英文摘要: We assessed the utility of online fluorescence spectroscopy for the real-time evaluation of the microbial quality of untreated drinking water. Online fluorimeters were installed on the raw water intake at four groundwater-derived UK public water supplies alongside existing turbidity sensors that are used to forewarn of the presence of microbial contamination in the water industry. The fluorimeters targeted fluorescent dissolved organic matter (DOM) peaks at excitation/emission wavelengths of 280/365 nm (tryptophan-like fluorescence, TLF) and 280/450 nm (humic-like fluorescence, HLF). Discrete samples were collected for Escherichia coli, total bacterial cell counts by flow cytometry, and laboratory-based fluorescence and absorbance. Both TLF and HLF were strongly correlated with E. coli (ρ = 0.71–0.77) and total bacterial cell concentrations (ρ = 0.73–0.76), whereas the correlations between turbidity and E. coli (ρ = 0.48) and total bacterial cell counts (ρ = 0.40) were much weaker. No clear TLF peak was observed at the sites and all apparent TLF was considered to be optical bleed-through from the neighbouring HLF peak. Therefore, a HLF fluorimeter alone would be sufficient to evaluate the microbial water quality at these sources. Fluorescent DOM was also influenced by site operations such as pump start-up and the precipitation of cations on the sensor windows. Online fluorescent DOM sensors are a better indicator of the microbial quality of untreated drinking water than turbidity and they have wide-ranging potential applications within the water industry. © 2018 British Geological Survey, a component institute of NERC - ‘BGS © NERC 2018’ Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112808
Appears in Collections: 气候减缓与适应
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作者单位: British Geological Survey, Maclean Building, Wallingford, OX10 8BB, United Kingdom; Centre for Ecology & Hydrology, Maclean Building, Wallingford, OX10 8BB, United Kingdom; Chelsea Technologies Group, 55 Central Ave, Molesey, West Molesey, KT8 2QZ, United Kingdom; Portsmouth Water, PO Box 99, West Street, Havant, Hampshire PO9 1LG, United Kingdom; Wessex Water, Wessex Road, Dorchester, DT1 2NY, United Kingdom; Affinity Water, Tamblin Way, Hatfield, AL10 9EZ, United Kingdom; Department of Geography, University College London, Gower Street, London, WC1E 6BT, United Kingdom
Recommended Citation:
Sorensen J.P.R.,Vivanco A.,Ascott M.J.,et al. Online fluorescence spectroscopy for the real-time evaluation of the microbial quality of drinking water[J]. Water Research,2018-01-01,137