||Inactivation Kinetics of Monochloramine on Monodispersed Hepatitis A Virus and MS2.
Venczel, L. ;
Sobsey, M. D. ;
Crawford-Brown, D. ;
||North Carolina Univ. at Chapel Hill. Dept. of Environmental Sciences and Engineering.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Hepatitis A virus ;
Aquatic microbiology ;
Pilot projects ;
Time factors ;
Distributive rate constant model ;
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The purpose of the study was to further characterize the disinfecting capabilities of preformed monochloramine using hepatitis A virus and the model coliphage MS2. The EPA has identified the latter virus as a model organism in developing CT values and conducting pilot plant studies. The following experiments were performed: (1) One hour-long experiments to determine the role of pH as a factor in disinfection; (2) Three day-long experiments to document the inactivation kinetics of these organisms over longer time periods; (3) and three day-long studies in which additional viruses or monochloramine were added to test alternative disinfection kinetic models, such as a state-vector model and a distributive rate constant model both based on virus population heterogeneity.