Long-Term Bacterial Dynamics in a Full-Scale Drinking Water Distribution System

E. I. Prest; D. G. Weissbrodt; F. Hammes; M. C M Van Loosdrecht; Johannes S. Vrouwenvelder

doi:10.1371/journal.pone.0164445

Long-Term Bacterial Dynamics in a Full-Scale Drinking Water Distribution System

E. I. Prest, D. G. Weissbrodt, F. Hammes, M. C M Van Loosdrecht, Johannes S. Vrouwenvelder

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67 Scopus citations

Abstract

Large seasonal variations in microbial drinking water quality can occur in distribution networks, but are often not taken into account when evaluating results from short-term water sampling campaigns. Temporal dynamics in bacterial community characteristics were investigated during a two-year drinking water monitoring campaign in a full-scale distribution system operating without detectable disinfectant residual. A total of 368 water samples were collected on a biweekly basis at the water treatment plant (WTP) effluent and at one fixed location in the drinking water distribution network (NET). The samples were analysed for heterotrophic plate counts (HPC), Aeromonas plate counts, adenosine-tri-phosphate (ATP) concentrations, and flow cytometric (FCM) total and intact cell counts (TCC, ICC), water temperature, pH, conductivity, total organic carbon (TOC) and assimilable organic carbon (AOC). Multivariate analysis of the large dataset was performed to explore correlative trends between microbial and environmental parameters. The WTP effluent displayed considerable seasonal variations in TCC (from 90 × 103 cells mL-1 in winter time up to 455 × 103 cells mL-1 in summer time) and in bacterial ATP concentrations (

Original language	English (US)
Pages (from-to)	e0164445
Journal	PLOS ONE
Volume	11
Issue number	10
DOIs	https://doi.org/10.1371/journal.pone.0164445
State	Published - Oct 28 2016

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: Evides Waterbedrijf (Rotterdam Area, The Netherlands) is acknowledged for assistance in the sampling and analysis campaign. Furthermore, we thank Elodie Loubineaud and Fezeka Sotywambe for their help in the water analysis and Cristian Picioreanu for his support on dataset interpolation.

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title = "Long-Term Bacterial Dynamics in a Full-Scale Drinking Water Distribution System",

abstract = "Large seasonal variations in microbial drinking water quality can occur in distribution networks, but are often not taken into account when evaluating results from short-term water sampling campaigns. Temporal dynamics in bacterial community characteristics were investigated during a two-year drinking water monitoring campaign in a full-scale distribution system operating without detectable disinfectant residual. A total of 368 water samples were collected on a biweekly basis at the water treatment plant (WTP) effluent and at one fixed location in the drinking water distribution network (NET). The samples were analysed for heterotrophic plate counts (HPC), Aeromonas plate counts, adenosine-tri-phosphate (ATP) concentrations, and flow cytometric (FCM) total and intact cell counts (TCC, ICC), water temperature, pH, conductivity, total organic carbon (TOC) and assimilable organic carbon (AOC). Multivariate analysis of the large dataset was performed to explore correlative trends between microbial and environmental parameters. The WTP effluent displayed considerable seasonal variations in TCC (from 90 × 103 cells mL-1 in winter time up to 455 × 103 cells mL-1 in summer time) and in bacterial ATP concentrations (",

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N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: Evides Waterbedrijf (Rotterdam Area, The Netherlands) is acknowledged for assistance in the sampling and analysis campaign. Furthermore, we thank Elodie Loubineaud and Fezeka Sotywambe for their help in the water analysis and Cristian Picioreanu for his support on dataset interpolation.

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N2 - Large seasonal variations in microbial drinking water quality can occur in distribution networks, but are often not taken into account when evaluating results from short-term water sampling campaigns. Temporal dynamics in bacterial community characteristics were investigated during a two-year drinking water monitoring campaign in a full-scale distribution system operating without detectable disinfectant residual. A total of 368 water samples were collected on a biweekly basis at the water treatment plant (WTP) effluent and at one fixed location in the drinking water distribution network (NET). The samples were analysed for heterotrophic plate counts (HPC), Aeromonas plate counts, adenosine-tri-phosphate (ATP) concentrations, and flow cytometric (FCM) total and intact cell counts (TCC, ICC), water temperature, pH, conductivity, total organic carbon (TOC) and assimilable organic carbon (AOC). Multivariate analysis of the large dataset was performed to explore correlative trends between microbial and environmental parameters. The WTP effluent displayed considerable seasonal variations in TCC (from 90 × 103 cells mL-1 in winter time up to 455 × 103 cells mL-1 in summer time) and in bacterial ATP concentrations (

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Long-Term Bacterial Dynamics in a Full-Scale Drinking Water Distribution System

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