Mitigation of Particulate Matter and Airborne Pathogens in Swine Barn Emissions with Filtration and UV-A Photocatalysis

This study evaluated the use of filtration and UV-A photocatalysis for the reduction of particulate matter (PM) and airborne bacterial pathogens in swine barns. Two MERV filters (8 and 15) were used to mitigate PM concentrations measured at the PM 1, PM 2.5, respirable PM, and PM 10 ranges. Filtrati...

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Autores principales:	Myeongseong Lee, Jacek A. Koziel, Nubia R. Macedo, Peiyang Li, Baitong Chen, William S. Jenks, Jeffrey Zimmerman, R. Vincent Paris
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	air pollution control biosecurity animal diseases ultraviolet light advanced oxidation filtration Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/3094d9932b7a46d298f21422ecab2f9f
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spelling	oai:doaj.org-article:3094d9932b7a46d298f21422ecab2f9f2021-11-25T17:05:39ZMitigation of Particulate Matter and Airborne Pathogens in Swine Barn Emissions with Filtration and UV-A Photocatalysis10.3390/catal111113022073-4344https://doaj.org/article/3094d9932b7a46d298f21422ecab2f9f2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4344/11/11/1302https://doaj.org/toc/2073-4344This study evaluated the use of filtration and UV-A photocatalysis for the reduction of particulate matter (PM) and airborne bacterial pathogens in swine barns. Two MERV filters (8 and 15) were used to mitigate PM concentrations measured at the PM 1, PM 2.5, respirable PM, and PM 10 ranges. Filtration was also used to generate different levels of airborne pathogens to be treated by UV-A. Results show that MERV 8 and 15 filters effectively reduced PM concentrations (96–98%) in air exhausted from a swine barn (<i>p</i> ranged from <0.01 to 0.04). UV-A photocatalysis did not mitigate PM concentrations. UV-A photocatalysis treatment reduced measured colony-forming units (CFUs) by 15–95%. The CFU percent reduction was higher when airborne PM concentration was low. The numeric results suggested a real mitigation effect despite <i>p</i>-values that did not meet the usual statistical cut-off of <0.05 for significance due to the large variability of the CFU control samples. Normalization of measured airborne pathogen concentrations by smaller PM size range concentrations led to emerging significant treatment differences for CFUs. A significant decrease (~51% reduction; <i>p</i> < 0.02) in the concentration of viable airborne bacteria was shown for all PM below the 10 micron range.Myeongseong LeeJacek A. KozielNubia R. MacedoPeiyang LiBaitong ChenWilliam S. JenksJeffrey ZimmermanR. Vincent ParisMDPI AGarticleair pollution controlbiosecurityanimal diseasesultraviolet lightadvanced oxidationfiltrationChemical technologyTP1-1185ChemistryQD1-999ENCatalysts, Vol 11, Iss 1302, p 1302 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	air pollution control biosecurity animal diseases ultraviolet light advanced oxidation filtration Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	air pollution control biosecurity animal diseases ultraviolet light advanced oxidation filtration Chemical technology TP1-1185 Chemistry QD1-999 Myeongseong Lee Jacek A. Koziel Nubia R. Macedo Peiyang Li Baitong Chen William S. Jenks Jeffrey Zimmerman R. Vincent Paris Mitigation of Particulate Matter and Airborne Pathogens in Swine Barn Emissions with Filtration and UV-A Photocatalysis
description	This study evaluated the use of filtration and UV-A photocatalysis for the reduction of particulate matter (PM) and airborne bacterial pathogens in swine barns. Two MERV filters (8 and 15) were used to mitigate PM concentrations measured at the PM 1, PM 2.5, respirable PM, and PM 10 ranges. Filtration was also used to generate different levels of airborne pathogens to be treated by UV-A. Results show that MERV 8 and 15 filters effectively reduced PM concentrations (96–98%) in air exhausted from a swine barn (<i>p</i> ranged from <0.01 to 0.04). UV-A photocatalysis did not mitigate PM concentrations. UV-A photocatalysis treatment reduced measured colony-forming units (CFUs) by 15–95%. The CFU percent reduction was higher when airborne PM concentration was low. The numeric results suggested a real mitigation effect despite <i>p</i>-values that did not meet the usual statistical cut-off of <0.05 for significance due to the large variability of the CFU control samples. Normalization of measured airborne pathogen concentrations by smaller PM size range concentrations led to emerging significant treatment differences for CFUs. A significant decrease (~51% reduction; <i>p</i> < 0.02) in the concentration of viable airborne bacteria was shown for all PM below the 10 micron range.
format	article
author	Myeongseong Lee Jacek A. Koziel Nubia R. Macedo Peiyang Li Baitong Chen William S. Jenks Jeffrey Zimmerman R. Vincent Paris
author_facet	Myeongseong Lee Jacek A. Koziel Nubia R. Macedo Peiyang Li Baitong Chen William S. Jenks Jeffrey Zimmerman R. Vincent Paris
author_sort	Myeongseong Lee
title	Mitigation of Particulate Matter and Airborne Pathogens in Swine Barn Emissions with Filtration and UV-A Photocatalysis
title_short	Mitigation of Particulate Matter and Airborne Pathogens in Swine Barn Emissions with Filtration and UV-A Photocatalysis
title_full	Mitigation of Particulate Matter and Airborne Pathogens in Swine Barn Emissions with Filtration and UV-A Photocatalysis
title_fullStr	Mitigation of Particulate Matter and Airborne Pathogens in Swine Barn Emissions with Filtration and UV-A Photocatalysis
title_full_unstemmed	Mitigation of Particulate Matter and Airborne Pathogens in Swine Barn Emissions with Filtration and UV-A Photocatalysis
title_sort	mitigation of particulate matter and airborne pathogens in swine barn emissions with filtration and uv-a photocatalysis
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3094d9932b7a46d298f21422ecab2f9f
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Mitigation of Particulate Matter and Airborne Pathogens in Swine Barn Emissions with Filtration and UV-A Photocatalysis

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