Developing an Optimal Antiviral Method for the Air-filtration System of Subway Stations
Abstract A novel antiviral method was developed in this study for the air-filtration system of subway stations. Using a dry aerosol coating process, along with a spark discharger and carbon-brush-type ionizer, we developed a high-performance antiviral air filter. Herein, Ag nanoparticles were produc...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer
2023-05-01
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| Series: | Aerosol and Air Quality Research |
| Subjects: | |
| Online Access: | https://doi.org/10.4209/aaqr.230088 |
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| _version_ | 1823862827590352896 |
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| author | Dae Hoon Park Jungho Hwang Dongho Shin Younghun Kim Gunhee Lee Inyong Park Sang Bok Kim Keejung Hong Bangwoo Han |
| author_facet | Dae Hoon Park Jungho Hwang Dongho Shin Younghun Kim Gunhee Lee Inyong Park Sang Bok Kim Keejung Hong Bangwoo Han |
| author_sort | Dae Hoon Park |
| collection | DOAJ |
| description | Abstract A novel antiviral method was developed in this study for the air-filtration system of subway stations. Using a dry aerosol coating process, along with a spark discharger and carbon-brush-type ionizer, we developed a high-performance antiviral air filter. Herein, Ag nanoparticles were produced using a spark–discharge generation system with an ion-injection system and were employed as antiviral agents for coating onto a medium-grade air filter. Moreover, we tested the pressure drop in the filter as well as its filtration efficiency and antiviral ability against aerosolized bacteriophage MS2 virus particles as a surrogate of the severe acute respiratory syndrome coronavirus 2 during dust loading. Notably, the dust contamination caused an increase in the filtration efficiency and pressure drop, whereas the antiviral agents (herein, the Ag nanoparticles) did not have a significant effect in this regard. Based on this, we suggested a novel method to regenerate the antiviral effect of the antiviral air filter contaminated by the dust particles. Furthermore, a theoretical analysis of the antiviral ability and antiviral effect regeneration for the case of dust loading was performed using a mathematical model to evaluate the time-dependent antiviral effect of the filter. Our model can be applied to the antiviral air-filtration system of subway stations to prevent the pandemic spread and predict the life cycle of antiviral filters. |
| format | Article |
| id | doaj-art-93bb42b500514e8cbe61c31b8f1088ad |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2023-05-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-93bb42b500514e8cbe61c31b8f1088ad2025-02-09T12:23:06ZengSpringerAerosol and Air Quality Research1680-85842071-14092023-05-0123811410.4209/aaqr.230088Developing an Optimal Antiviral Method for the Air-filtration System of Subway StationsDae Hoon Park0Jungho Hwang1Dongho Shin2Younghun Kim3Gunhee Lee4Inyong Park5Sang Bok Kim6Keejung Hong7Bangwoo Han8Department of Sustainable Environment Research, Korea Institute of Machinery and MaterialsDepartment of Mechanical Engineering, Yonsei UniversityDepartment of Sustainable Environment Research, Korea Institute of Machinery and MaterialsDepartment of Sustainable Environment Research, Korea Institute of Machinery and MaterialsDepartment of Sustainable Environment Research, Korea Institute of Machinery and MaterialsDepartment of Sustainable Environment Research, Korea Institute of Machinery and MaterialsDepartment of Sustainable Environment Research, Korea Institute of Machinery and MaterialsDepartment of Sustainable Environment Research, Korea Institute of Machinery and MaterialsDepartment of Sustainable Environment Research, Korea Institute of Machinery and MaterialsAbstract A novel antiviral method was developed in this study for the air-filtration system of subway stations. Using a dry aerosol coating process, along with a spark discharger and carbon-brush-type ionizer, we developed a high-performance antiviral air filter. Herein, Ag nanoparticles were produced using a spark–discharge generation system with an ion-injection system and were employed as antiviral agents for coating onto a medium-grade air filter. Moreover, we tested the pressure drop in the filter as well as its filtration efficiency and antiviral ability against aerosolized bacteriophage MS2 virus particles as a surrogate of the severe acute respiratory syndrome coronavirus 2 during dust loading. Notably, the dust contamination caused an increase in the filtration efficiency and pressure drop, whereas the antiviral agents (herein, the Ag nanoparticles) did not have a significant effect in this regard. Based on this, we suggested a novel method to regenerate the antiviral effect of the antiviral air filter contaminated by the dust particles. Furthermore, a theoretical analysis of the antiviral ability and antiviral effect regeneration for the case of dust loading was performed using a mathematical model to evaluate the time-dependent antiviral effect of the filter. Our model can be applied to the antiviral air-filtration system of subway stations to prevent the pandemic spread and predict the life cycle of antiviral filters.https://doi.org/10.4209/aaqr.230088Antiviral air filterBioaerosolsAir-filtration systemIndoor air qualitySubway station |
| spellingShingle | Dae Hoon Park Jungho Hwang Dongho Shin Younghun Kim Gunhee Lee Inyong Park Sang Bok Kim Keejung Hong Bangwoo Han Developing an Optimal Antiviral Method for the Air-filtration System of Subway Stations Aerosol and Air Quality Research Antiviral air filter Bioaerosols Air-filtration system Indoor air quality Subway station |
| title | Developing an Optimal Antiviral Method for the Air-filtration System of Subway Stations |
| title_full | Developing an Optimal Antiviral Method for the Air-filtration System of Subway Stations |
| title_fullStr | Developing an Optimal Antiviral Method for the Air-filtration System of Subway Stations |
| title_full_unstemmed | Developing an Optimal Antiviral Method for the Air-filtration System of Subway Stations |
| title_short | Developing an Optimal Antiviral Method for the Air-filtration System of Subway Stations |
| title_sort | developing an optimal antiviral method for the air filtration system of subway stations |
| topic | Antiviral air filter Bioaerosols Air-filtration system Indoor air quality Subway station |
| url | https://doi.org/10.4209/aaqr.230088 |
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