The effect of sludge digestion on virus infectivity |
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| Authors: | Anne Eisenhardt Ebba Lund Birte Nissen |
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| Affiliation: | Department of Veterinary Virology and Immunology, The Royal Veterinary and Agricultural University of Copenhagen, Copenhagen, Denmark |
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| Abstract: | The rate of inactivation of coxsackievirus B3 during anaerobic sludge digestion was found to be 2 log units in 24 h at pH 7.0 and 35°C. The rate indicates that virus inactivating factor(s) were produced in the digestion. The virus inactivation was enhanced if the digester sludge was pasteurized at 60°C for 1 h. The reason why digesters at sewage treatment plants do not completely inactivate virus is discussed in terms of the continuous nature of digester operation. |
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