Non-thermal Plasma for VOC Treatment in Flue Gases

Ikaunieks, Jānis; Mezmale, Liga; Žandeckis, Aivars; Pubule, Jeļena; Blumberga, Andra; Veidenbergs, Ivars

doi:10.2478/v10145-011-0004-4

Cited by 6 publications

(1 citation statement)

References 11 publications

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“…Plasma is a completely or partially ionized gas, including various particles such as electrons, ions, radicals, atoms, and molecules. It has been known as the fourth state of matter (Subrahmanyam 2009 ; Yarahmadi et al 2010a , b ; Brandenburg et al 2011 ; Ikaunieks et al 2011 ; Pârvulescu et al 2012 ; Bisht et al 2014 ; Schmidt et al 2015 ; Yarahmadi et al 2015 ;). In air pollution control using NTP-based technologies, Yarahmadi et al ( 2010a , b ) used a DBD reactor to the removal of NOx from the gas stream (Yarahmadi et al 2010a , b ).…”

Section: Introductionmentioning

confidence: 99%

Inactivation of airborne SARS-Co-V2 using NTP-UVGI hybrid process

Yarahmadi

Soleimani-Alyar

Darvishi

2022

Int. J. Environ. Sci. Technol.

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Indoor environments such as healthcare centers are known as one of the key centers in the outbreak of viral infectious diseases. In the present study, the pathogenic agents' treatment system (PATS) was designed by the combination of non-thermal plasma (NTP) with the ultraviolet germicidal irradiation (UVGI) processes. Then, the treatment efficiency of PATS was measured for the "SARS-Co-V2." The exhaled air of the confirmed case of "COVID-19" was considered as the viral source of "SARS-Co-V2" and directed to the upstream of PATS. The treatment process was done by passing directed air through two steps of treatment (NTP and UVGI). The treatment efficiency of PATS was measured by sampling at the sampling points (before and after the treatment process). According to the energy emission pattern (corona discharge, UV rays) in the designed system, during two steps, the high efficiency of treatment for the collected pathogens was achieved. Based on the real-time polymerase chain reaction (RT-PCR) results, the CT value was lower than 29 (CTs < 29), and after the treatment using PATS was upper than 40 (CTs > 40) confirming the highest removal efficiency of "SARS-Co-V2." Also, the treatment efficiency of each reactor in individual operation was at the optimum level. The findings suggested, the present PATS may eliminate the viral pathogens with hospital sources and also, be applicable in the other intensive care unit (ICU) wards with the same risk thus, significantly reducing the possible exposure risk of healthcare and sick companions, and preventing the outbreak of infectious diseases.

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Section: Introductionmentioning

confidence: 99%