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. 1976 Sep;32(3):339–346. doi: 10.1128/aem.32.3.339-346.1976

Heat inactivation of poliovirus in wastewater sludge.

R L Ward, C S Ashley, R H Moseley
PMCID: PMC170067  PMID: 185956

Abstract

The effect of raw and anaerobically digested sludge on heat inactivation of poliovirus was investigated. Raw sludge was found to be very protective of poliovirus plaque-forming ability at all temperatures studied, but digested sludge had variable effects that were highly dependent upon the experimental conditions. In low concentrations and at relatively low inactivation temperatures, digested sludge is nearly as protective of poliovirus as raw sludge. However, at higher tempeatures and concentrations, digested sludge caused a significant acceleration of poliovirus inactivation. The difference between the protective capability of raw and digested sludge is not due to loss of protective material, because this component is present in the solids of digested sludge as well as in those of raw sludge. Instead, the difference is due to a virucidal agent acquired during digestion. Addition of this agent to the solids of either raw or digested sludge reverses the protective potential of these solids during heat treatment of poliovirus.

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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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