For example, resultsshowed that over 98% of Bacillus subtilis aerosols survived the 0.12second plasma treatment, while there was 100% inactivation of Pseudomonasfluorescens aerosols[ 120]. A 1.5 and 5.5 log reduction of airborne E. coli,respectively, after 10 seconds and 2 minutes of single exposure with CAP [ 121]. The results of the study also showed that cap waseffective against coronavirus (COVID-19) and avian influenza virus (AIV) [ 122, 123]. The spores of Aspergillus flavus were treatedwith CAP at 0.79 W/cm2 for 120 seconds of exposure time and sporenumbers reached 2.19 log reduction and 480 seconds of complete inactivation [ 124]. The porcine reproductive and respiratory syndromevirus (PRRSv) was inactivated with up to a 1.3 log inactivation rate at 12 cfmair flow rate under 20 kV [ 125]. However, utilization of high-voltage plasma inresidential disinfection provokes the safety concerns and has a very highenergy consumption which is not cost-effective. Moreover, the formation ofsecondary pollutants (e.g., ozone, CO, or NOx) may negatively affect thetreated air quality[ 126]. Therefore, it is important to study how to improvethe energy consumption ratio for CAP as much as possiblewhile maintaining high efficiency.[ 127].
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发表于 2022-3-24 18:01
