Affiliation:
1. Department of International Health and Tropical Medicine, Royal College of Surgeons in Ireland, Dublin, Ireland.
Abstract
We report simulations of the thermal effect of strong equatorial sunshine on water samples contaminated with high populations of fecal coliforms. Water samples, heavily contaminated with a wild-type strain of Escherichia coli (starting population = 20 x 10(5) CFU/ml), are heated to those temperatures recorded for 2-liter samples stored in transparent plastic bottles and exposed to full Kenyan sunshine (maximum water temperature, 55 degrees C). The samples are completely disinfected within 7 h, and no viable E. coli organisms are detected at either the end of the experiment or a further 12 h later, showing that no bacterial recovery has occurred. The feasibility of employing solar disinfection for highly turbid, fecally contaminated water is discussed.
Publisher
American Society for Microbiology
Subject
Ecology,Applied Microbiology and Biotechnology,Food Science,Biotechnology
Reference16 articles.
1. Acra A. M. Jurdi H. Mu'allem Y. Karahagopian and Z. Raffoul. 1990. Water disinfection by solar radiation. IDRC-TS66e. International Development Research Centre Ottawa Canada.
2. Acra A. Y. Karahagopian Z. Raffoul and R. Dajani. 1980. Disinfection of oral rehydration solutions by sunlight. Lancet ii:1257-1258. (Letter.)
3. Pasteurization of naturally contaminated water with solar energy;Ciochetti D. A.;Appl. Environ. Microbiol.,1984
4. Sunlight and the survival of enteric bacteria in natural waters;Davies C. M.;J. Appl. Bacteriol.,1991
5. Application de la desinfection solaire a l'eau de boisson en milieu tropical;De Lorenzi G.;Bull. Soc. Pathol. Exot.,1989
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