Inactivation of Escherichia coli in the flowing afterglow of an N-2 discharge at reduce pressure: study of the destruction mechanisms of bacteria and hydrodynamics of the afterglow flow

摘要

We present the optimization of a sterilization process with a N-2 flowing afterglow post-discharge. First we study the inactivation of bacteria ( E. coli coli) submitted to the post-discharge, and discuss the) mechanisms of bacteria inactivation. Then we evaluate the volume repartition of the active species ( N atoms produced by plasma discharge) in the chamber of treatment.