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. 1979 Jul;38(1):114–118. doi: 10.1128/aem.38.1.114-118.1979

Survival of poliovirus within organic solids during chlorination.

T W Hejkal, F M Wellings, P A LaRock, A L Lewis
PMCID: PMC243444  PMID: 225993

Abstract

Poliovirus in fecal homogenates was used to determine the protection against inactivation by chlorination afforded virus that was occluded within particulates. Virus that was closely associated with or occluded within small fecal particulates was protected. A fourfold increase in combined residual chlorine was required to achieve the same degree of inactivation for occluded virus as for free or secondarily adsorbed virus. A combined chlorine residual of 6.6 mg/liter was necessary to achieve 50% inactivation in 15 min at pH 8.0 and 22 degrees C in a particulate suspension containing occluded virus compared to 1.4 mg/liter for free virus. These differences were found to be relatively small compared to differences due to the presence of dissolved organics or between free and combined chlorine residuals. The results suggest different mechanisms of protection due to adsorption and occlusion.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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