Evaluation of the factors controlling the time-dependent inactivation rate coefficients of bacteriophage MS2 and PRD1

Environmental Science & Technology
By:  and 

Links

Abstract

Static and dynamic batch experiments were conducted to study the effects of temperature and the presence of sand on the inactivation of bacteriophage MS2 and PRD1. The experimental data suggested that the inactivation process can be satisfactorily represented by a pseudo-first-order expression with time-dependent rate coefficients. The time-dependent rate coefficients were used to determine pertinent thermodynamic properties required for the analysis of the molecular processes involved in the inactivation of each bacteriophage. A combination of high temperature and the presence of sand appears to produce the greatest disruption to the surrounding protein coat of MS2. However, the lower activation energies for PRD1 indicate a weaker dependence of the inactivation rate on temperature. Instead, the presence of air-liquid and air-solid interfaces appears to produce the greatest damage to specific viral components that are related to infection. These results indicate the importance of using thermodynamic parameters based on the time-dependent inactivation model to better predict the inactivation of viruses in groundwater. ?? 2006 American Chemical Society.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Evaluation of the factors controlling the time-dependent inactivation rate coefficients of bacteriophage MS2 and PRD1
Series title Environmental Science & Technology
DOI 10.1021/es051604b
Volume 40
Issue 10
Year Published 2006
Language English
Publisher ACS
Contributing office(s) California Water Science Center
Description 6 p.
First page 3237
Last page 3242