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Removal of bioaerosols by the combination of a photocatalytic filter and negative air ions
This study focused on the investigation of the effectiveness of negative air ionization (NAI), photocatalytic oxidation (PCO), and the combination of NAI and PCO on the removal of aerosolized Escherichia coli, Candida famata, and [Formula: see text] vir phage under different relative humidity. The e...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier Ltd.
2008
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7185609/ https://www.ncbi.nlm.nih.gov/pubmed/32362683 http://dx.doi.org/10.1016/j.jaerosci.2007.12.005 |
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author | Yu, Kuo-Pin Lee, Grace Whei-May Lin, Szu-Ying Huang, Chien Ping |
author_facet | Yu, Kuo-Pin Lee, Grace Whei-May Lin, Szu-Ying Huang, Chien Ping |
author_sort | Yu, Kuo-Pin |
collection | PubMed |
description | This study focused on the investigation of the effectiveness of negative air ionization (NAI), photocatalytic oxidation (PCO), and the combination of NAI and PCO on the removal of aerosolized Escherichia coli, Candida famata, and [Formula: see text] vir phage under different relative humidity. The experiments were conducted with a stainless steel reactor equipped with a negative air ion generator, a photocatalytic filter, and two ultraviolet lamps with 365 nm wavelength. The removal efficiency [Formula: see text] , defined as one minus the ratio of the outlet concentration to the inlet concentration of the appropriate bioaerosol, was used to evaluate the effectiveness of the removal methods. The combination of NAI and PCO was the most efficient removal method for aerosolized E. coli [Formula: see text] , C. famata [Formula: see text] , and [Formula: see text] vir phage [Formula: see text]. In this removal method, the contributions of NAI were higher than those of PCO for the removal of E. coli and C. famata; for the removal of [Formula: see text] virus phage the contributions of NAI and PCO were comparable NAI was the least efficient removal method for bioaerosols, and the removal efficiencies are: [Formula: see text] for E. coli; [Formula: see text] for C. famata; and [Formula: see text] for [Formula: see text] vir phage. |
format | Online Article Text |
id | pubmed-7185609 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2008 |
publisher | Elsevier Ltd. |
record_format | MEDLINE/PubMed |
spelling | pubmed-71856092020-04-28 Removal of bioaerosols by the combination of a photocatalytic filter and negative air ions Yu, Kuo-Pin Lee, Grace Whei-May Lin, Szu-Ying Huang, Chien Ping J Aerosol Sci Article This study focused on the investigation of the effectiveness of negative air ionization (NAI), photocatalytic oxidation (PCO), and the combination of NAI and PCO on the removal of aerosolized Escherichia coli, Candida famata, and [Formula: see text] vir phage under different relative humidity. The experiments were conducted with a stainless steel reactor equipped with a negative air ion generator, a photocatalytic filter, and two ultraviolet lamps with 365 nm wavelength. The removal efficiency [Formula: see text] , defined as one minus the ratio of the outlet concentration to the inlet concentration of the appropriate bioaerosol, was used to evaluate the effectiveness of the removal methods. The combination of NAI and PCO was the most efficient removal method for aerosolized E. coli [Formula: see text] , C. famata [Formula: see text] , and [Formula: see text] vir phage [Formula: see text]. In this removal method, the contributions of NAI were higher than those of PCO for the removal of E. coli and C. famata; for the removal of [Formula: see text] virus phage the contributions of NAI and PCO were comparable NAI was the least efficient removal method for bioaerosols, and the removal efficiencies are: [Formula: see text] for E. coli; [Formula: see text] for C. famata; and [Formula: see text] for [Formula: see text] vir phage. Elsevier Ltd. 2008-05 2007-12-16 /pmc/articles/PMC7185609/ /pubmed/32362683 http://dx.doi.org/10.1016/j.jaerosci.2007.12.005 Text en Copyright © 2008 Elsevier Ltd. All rights reserved. Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active. |
spellingShingle | Article Yu, Kuo-Pin Lee, Grace Whei-May Lin, Szu-Ying Huang, Chien Ping Removal of bioaerosols by the combination of a photocatalytic filter and negative air ions |
title | Removal of bioaerosols by the combination of a photocatalytic filter and negative air ions |
title_full | Removal of bioaerosols by the combination of a photocatalytic filter and negative air ions |
title_fullStr | Removal of bioaerosols by the combination of a photocatalytic filter and negative air ions |
title_full_unstemmed | Removal of bioaerosols by the combination of a photocatalytic filter and negative air ions |
title_short | Removal of bioaerosols by the combination of a photocatalytic filter and negative air ions |
title_sort | removal of bioaerosols by the combination of a photocatalytic filter and negative air ions |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7185609/ https://www.ncbi.nlm.nih.gov/pubmed/32362683 http://dx.doi.org/10.1016/j.jaerosci.2007.12.005 |
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