Development of a mercury‐free ultraviolet high‐pressure plasma discharge for disinfection

Disinfection of sea water by ultraviolet radiation.

Modeling and Efficiency of Ultraviolet Disinfection Systems

D i s i n f e c t i o n of wastewater e f f l u e n t s w i th u l t r a v i o l e t ( W ) l i g h t h a s r e c e n t l y become a r a p i d l y growing and c o m p e t i t i v e a l t e r n a t i v e o c h l o r i n a t i o n . Over 20 l a r g e scale W systems t h e past 2 y e a r s i n North America. U l t r a v i o l e t d i s i n f e c t i o n can avo id t h e environmental problems a s s...

Development of monitored tunable biodosimetry for fluence validation in an ultraviolet disinfection reactor

The current biodosimetry, a primary fluence validation method for ultraviolet (UV) reactors, is confronting some serious challenges (e.g., the high cost and the lack of accurate monitoring of the lamp output), thus greatly limiting its practical application. In this study, a monitored tunable biodosimetry (MTB) was developed to validate the fluence of UV reactors with a lower cost but a higher ...

Low-Pressure Radiofrequency Cold Plasma for Disinfection of Gutta-Percha Cones

Background and Aim: Different methods have been proposed for rapid disinfection of gutta-percha (GP) cones. This study aimed to assess the efficacy of low-pressure radiofrequency cold plasma (LRFCP) in disinfection of GP cones compared to three chemical disinfectants. Materials and Methods: Seventy GP cones were allocated to seven groups of 10 each. All samples were initially sterilized with e...

The history of ultraviolet germicidal irradiation for air disinfection.

Public health concerns such as multi- and extensive drug-resistant tuberculosis, bioterrorism, pandemic influenza, and severe acute respiratory syndrome have intensified efforts to prevent transmission of infections that are completely or partially airborne using environmental controls. One such control, ultraviolet germicidal irradiation (UVGI), has received renewed interest after decades of u...