Africa on the Precipice

Elmore-Meegan, Michael

doi:10.1001/jama.1993.03510050095036

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Cited by 8 publications

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“…Readings taken on the following day showed the turbidity to have fallen to approximately 28 NTU. This maximum turbidity value was judged not typical for the water source (7), and so the next-highest value recorded of 200 NTU was used for the laboratory simulations of high-turbidity conditions. Laboratory simulations.…”

Section: Resultsmentioning

confidence: 99%

Inactivation of fecal bacteria in drinking water by solar heating

Joyce

McGuigan

Elmore-Meegan

et al. 1996

Appl Environ Microbiol

144

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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 ؋ 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؇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.

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Section: Resultsmentioning

confidence: 99%