Disinfecting Water: Plasma Discharge for Removing Coronaviruses

A Model of Micro Electro-Discharge Machining Plasma Discharge in Deionized Water

For successful commercial adaptation of the l-EDM (micro electro-discharge machining) process, there is a need to increase the process efficiency by understanding the process mechanism. This paper presents a model of the plasma discharge phase of a single discharge l-EDM event in deionized water. The plasma discharge is modeled using global model approach in which the plasma is assumed to be sp...

Microbiological effectiveness of disinfecting water by boiling in rural Guatemala.

Boiling is the most common means of treating water in the home and the benchmark against which alternative point-of-use water treatment options must be compared. In a 5-week study in rural Guatemala among 45 households who claimed they always or almost always boiled their drinking water, boiling was associated with a 86.2% reduction in geometric mean thermotolerant coliforms (TTC) (N = 206, P <...

Surface Decontamination by Dielectric Barrier Discharge Plasma

Background: Dielectric barrier discharge (DBD), a source of non-thermal plasma, is used in surface decontamination. Objective: To study the effect of DBD plasma treatment, we evaluated the effect of plasma exposure time on inactivation of Bacillus subtilis. Results: Applying the DBD plasma to the culture of B. subtilis caused complete sterilization of the surface without any thermal effects. In...

Investigation of Coronaviruses (COVID 19) in Water and Wastewater

Introduction: Water can be a carrier environment for pathogens or provide the conditions for the spread of a disease or various infectious cases. Covid-19 outbreak was declared a pandemic by the World Health Organization on 12 March 2020. The main routes of transmission of the virus are through drapelet and individual transmission, although recent research confirms the presence of viral RNA in ...

Liquid Jet-Initiated Plasma Discharge for Generating Useful Plasma Radiation