Evaluation of the ability of chlorine to inactivate selected organisms from the biofilm of a drinking water distribution system simulator following a long-term wastewater cross-connection

2004 ◽  
Vol 3 (2) ◽  
pp. 97-105 ◽  
Author(s):  
Shawn G Gibbs ◽  
Mark C Meckes ◽  
Christopher F Green ◽  
Pasquale V Scarpino
Keyword(s):  
Drinking Water ◽  
Distribution System ◽  
Water Distribution ◽  
Water Distribution System ◽  
Drinking Water Distribution System ◽  
Drinking Water Distribution ◽  
Cross Connection

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

PLoS ONE ◽  
2016 ◽  
Vol 11 (10) ◽  
pp. e0164445 ◽  
Author(s):  
E. I. Prest ◽  
D. G. Weissbrodt ◽  
F. Hammes ◽  
M. C. M. van Loosdrecht ◽  
J. S. Vrouwenvelder
Keyword(s):  
Drinking Water ◽  
Distribution System ◽  
Water Distribution ◽  
Water Distribution System ◽  
Full Scale ◽  
Drinking Water Distribution System ◽  
Bacterial Dynamics ◽  
Drinking Water Distribution

scholarly journals Long-Term Succession of Structure and Diversity of a Biofilm Formed in a Model Drinking Water Distribution System

2003 ◽  
Vol 69 (11) ◽  
pp. 6899-6907 ◽  
Author(s):  
Adam C. Martiny ◽  
Thomas M. Jørgensen ◽  
Hans-Jørgen Albrechtsen ◽  
Erik Arvin ◽  
Søren Molin
Keyword(s):  
Drinking Water ◽  
Community Composition ◽  
Distribution System ◽  
Water Distribution ◽  
Water Distribution System ◽  
Single Cells ◽  
Drinking Water Distribution System ◽  
Structural Morphology ◽  
Drinking Water Distribution

ABSTRACT In this study, we examined the long-term development of the overall structural morphology and community composition of a biofilm formed in a model drinking water distribution system with biofilms from 1 day to 3 years old. Visualization and subsequent quantification showed how the biofilm developed from an initial attachment of single cells through the formation of independent microcolonies reaching 30 μm in thickness to a final looser structure with an average thickness of 14.1 μm and covering 76% of the surface. An analysis of the community composition by use of terminal restriction fragment length polymorphisms showed a correlation between the population profile and the age of the sample, separating the samples into young (1 to 94 days) and old (571 to 1,093 days) biofilms, whereas a limited spatial variation in the biofilm was observed. A more detailed analysis with cloning and sequencing of 16S rRNA fragments illustrated how a wide variety of cells recruited from the bulk water initially attached and resulted in a species richness comparable to that in the water phase. This step was followed by the growth of a bacterium which was related to Nitrospira, which constituted 78% of the community by day 256, and which resulted in a reduction in the overall richness. After 500 days, the biofilm entered a stable population state, which was characterized by a greater richness of bacteria, including Nitrospira, Planctomyces, Acidobacterium, and Pseudomonas. The combination of different techniques illustrated the successional formation of a biofilm during a 3-year period in this model drinking water distribution system.

scholarly journals Impact of coagulation–ultrafiltration on long-term pipe biofilm dynamics in a full-scale chloraminated drinking water distribution system

2020 ◽  
Vol 6 (11) ◽  
pp. 3044-3056
Author(s):  
Kristjan Pullerits ◽  
Sandy Chan ◽  
Jon Ahlinder ◽  
Alexander Keucken ◽  
Peter Rådström ◽  
...  
Keyword(s):  
Drinking Water ◽  
Distribution System ◽  
Water Distribution ◽  
Water Distribution System ◽  
Full Scale ◽  
Drinking Water Distribution System ◽  
System P ◽  
Drinking Water Distribution ◽  
Biofilm Community

Introducing coagulation–ultrafiltration removed bacteria from the drinking water but did not impact nitrification, localizing this process to the biofilm community.

Persistence and decontamination of surrogate radioisotopes in a model drinking water distribution system

2009 ◽  
Vol 43 (20) ◽  
pp. 5005-5014 ◽  
Author(s):  
Jeffrey G. Szabo ◽  
Christopher A. Impellitteri ◽  
Shekar Govindaswamy ◽  
John S. Hall
Keyword(s):  
Drinking Water ◽  
Distribution System ◽  
Water Distribution ◽  
Water Distribution System ◽  
Drinking Water Distribution System ◽  
Drinking Water Distribution

VULNERABILITY ASSESSMENT OF A DRINKING WATER DISTRIBUTION SYSTEM

2007 ◽  
Vol 2007 (1) ◽  
pp. 449-467
Author(s):  
Stacia L. Thompson ◽  
Elizabeth Casman ◽  
Paul Fischbeck ◽  
Mitchell J. Small ◽  
Jeanne M. VanBriesen
Keyword(s):  
Drinking Water ◽  
Vulnerability Assessment ◽  
Distribution System ◽  
Water Distribution ◽  
Water Distribution System ◽  
Drinking Water Distribution System ◽  
Drinking Water Distribution
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