Inactivation of Enteric Viruses in Dewatered Wastewater Sludge

摘要

Several conclusions can be made from the results presented. Dewatering by evaporation is an efficient method of inactivating enteric viruses in sludge. The rates of heat inactivation of enteric viruses are greatly modified by various components of sludge; heat inactivation of enteroviruses is accelerated by ammonia but retarded by detergents while reovirus inactivation is accelerated by detergents but slowed by an unidentified sludge component. The effects of these components are modified or enhanced in dewatered sludge. Composting of sludge appears to degrade or otherwise reduce the effects of these components. (ERA citation 04:008915)