Microbial counts and pesticide concentrations in drinking water after alum flocculation of channel feed water at the household level, in Vinh Long Province, Vietnam

Wrigley, Tim (2007) Microbial counts and pesticide concentrations in drinking water after alum flocculation of channel feed water at the household level, in Vinh Long Province, Vietnam. Journal of Water and Health, 5 1: 171-178. doi:10.2166/wh.2006.003


Author Wrigley, Tim
Title Microbial counts and pesticide concentrations in drinking water after alum flocculation of channel feed water at the household level, in Vinh Long Province, Vietnam
Journal name Journal of Water and Health   Check publisher's open access policy
ISSN 1477-8920
Publication date 2007
Sub-type Article (original research)
DOI 10.2166/wh.2006.003
Volume 5
Issue 1
Start page 171
End page 178
Total pages 8
Place of publication London
Publisher I W A Publishing
Language eng
Subject 05 Environmental Sciences
Abstract Low technology water supply, treatment and sanitation techniques were reviewed in a Vietnamese village in the Mekong River Delta as part of an AusAlD Project to reduce poverty and to improve the overall living standards and health in the Cuu Long (Mekong) delta for 500,000 rural poor. It was found that dosing of canal water in 200-l ceramic jars with alum, PAC or PAC followed by hypochlorite provides a high level of treatment for drinking water at the household level in a rural village setting in the Mekong River delta. Seventy per cent Q in total) of the 24 samples collected showed that Escherichia coli levels per 100ml in the jars after treatment showed a 'no risk' profile (0 E. coli 100ml(-1)) i.e. the water would be considered to be of very good quality for drinking according to world Health organization Guidelines for Rural Drinking Water Supply. This included the eight samples that were dosed with hypochlorite. The remaining 30% of samples (seven in total) ranged from 14 to 47 E coli 100ml(-1) which is considered an intermediate risk (10-100 E. coli 100ml(-1)) according to WHO guidelines. All control water samples (eight in total) were high or very high risk (> 100 E. coli 100ml(-1)). Pesticide concentrations generally were low and met Vietnamese drinking water quality criteria.
Keyword Environmental Sciences
Public, Environmental & Occupational Health
Microbiology
Water Resources
alum and PAC with hypochlorite flocculation
coliform
E. coli
household treatment
pesticides
WHO rural drinking water guidelines
Point-of-use
Diarrhea Prevention
Solar Disinfection
Safe Storage
Controlled-trial
Cholera
Disease
Chlorination
Transmission
Children
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Geography, Planning and Environmental Management Publications
 
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Created: Mon, 18 Feb 2008, 16:50:51 EST