The effect of container-biofilm on the microbiological quality of water used from plastic household containers

Jagals, P., Jagals, C. and Bokako, T. C. (2003) The effect of container-biofilm on the microbiological quality of water used from plastic household containers. Journal of Water and Health, 1 3: 101-108.

Author Jagals, P.
Jagals, C.
Bokako, T. C.
Title The effect of container-biofilm on the microbiological quality of water used from plastic household containers
Journal name Journal of Water and Health   Check publisher's open access policy
ISSN 1477-8920
Publication date 2003-09
Sub-type Article (original research)
Volume 1
Issue 3
Start page 101
End page 108
Total pages 8
Place of publication London, United Kingdom
Publisher IWA Publishing
Language eng
Abstract Studies in Southern Africa have shown that even when microbiologically safe water is supplied to developing communities at communal standpipes, contamination by high numbers of pathogenic microorganisms may occur during the processes of fetching water from the supply source and storage during use at home, rendering such waters unsafe for human consumption. This study investigated the occurrence of biofilm in PVC storage containers as one possible reason for this deterioration, using heterotrophic bacteria and total coliform counts as well as turbidity as indicators. A second objective was to determine whether biofilm in water-storage containers could contribute to hazardous microbiological contamination indicated by Escherichia coli and Clostridium perfringens. Results indicated that increased microbiological contamination is associated with biofilm. The biofilm harbours heterotrophic bacteria, total coliforms and C. perfringens. E. coli could not be associated directly with the levels of biofilm in containers but rather appears to be introduced intermittently from the ambient domestic environment. When dislodged with the biofilm, these bacteria contributed substantially to the deterioration of the microbiological quality of supplied water stored in plastic containers.
Keyword Biofilm
Clostridium perfringens
E. coli
Total coliforms
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Public Health Publications
 
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Created: Tue, 24 Jan 2012, 12:41:40 EST by Geraldine Fitzgerald on behalf of School of Public Health