Pilot-Scale Testing of UV-A Light Treatment for Mitigation of NH3, H2S, GHGs, VOCs, Odor, and O3 Inside the Poultry Barn

dc.contributor.author Koziel, Jacek
dc.contributor.author Lee, Myeongseong
dc.contributor.author Li, Peiyang
dc.contributor.author Koziel, Jacek
dc.contributor.author Ahn, Heekwon
dc.contributor.author Wi, Jisoo
dc.contributor.author Chen, Baitong
dc.contributor.author Jenks, William
dc.contributor.author Meiirkhanuly, Zhanbek
dc.contributor.author Banik, Chumki
dc.contributor.author Jenks, William
dc.contributor.department Ames Laboratory
dc.contributor.department Food Science and Human Nutrition
dc.contributor.department Civil, Construction and Environmental Engineering
dc.contributor.department Agricultural and Biosystems Engineering
dc.contributor.department Toxicology
dc.contributor.department Ames Laboratory
dc.date 2020-07-31T22:49:47.000
dc.date.accessioned 2021-02-24T17:51:18Z
dc.date.available 2021-02-24T17:51:18Z
dc.date.copyright Wed Jan 01 00:00:00 UTC 2020
dc.date.issued 2020-07-31
dc.description.abstract <p>Poultry farmers are producing eggs, meat, and feathers with increased efficiency and lower carbon footprint. Technologies to address concerns about the indoor air quality inside barns and the gaseous emissions from farms to the atmosphere continue to be among industry priorities. We have been developing and scaling up a UV air treatment that has the potential to reduce odor and other gases on the farm scale. In our recent laboratory-scale study, the use of UV-A (a less toxic ultraviolet light, a.k.a. “black light”) and a special TiO2-based photocatalyst reduced concentrations of several important air pollutants (NH3, CO2, N2O, O3) without impact on H2S and CH4. Therefore, the objectives of this research were to (1) scale up the UV treatment to pilot scale, (2) evaluate the mitigation of odor and odorous volatile organic compounds (VOCs), and (3) complete preliminary economic analyses. A pilot-scale experiment was conducted under commercial poultry barn conditions to evaluate photocatalyst coatings on surfaces subjected to UV light under field conditions. In this study, the reactor was constructed to support interchangeable wall panels and installed on a poultry farm. The effects of a photocatalyst's presence (photocatalysis and photolysis), UV intensity (LED and fluorescent), and treatment time were studied in the pilot-scale experiments inside a poultry barn. The results of the pilot-scale experiments were consistent with the laboratory-scale one: the percent reduction under photocatalysis was generally higher than photolysis. In addition, the percent reduction of target gases at a high light intensity and long treatment time was higher. The percent reduction of NH3 was 5–9%. There was no impact on H2S, CH4, and CO2 under any experimental conditions. N2O and O3 concentrations were reduced at 6–12% and 87–100% by both photolysis and photocatalysis. In addition, concentrations of several VOCs responsible for livestock odor were reduced from 26 to 62% and increased with treatment time and light intensity. The odor was reduced by 18%. Photolysis treatment reduced concentrations of N2O, VOCs, and O3, only. The initial economic analysis has shown that LEDs are more efficient than fluorescent lights. Further scale-up and research at farm scale are warranted.</p>
dc.description.comments <p>This article is published as Lee, Myeongseong, Peiyang Li, Jacek A. Koziel, Heekwon Ahn, Jisoo Wi, Baitong Chen, Zhanibek Meiirkhanuly, Chumki Banik, and William Jenks. "Pilot-scale testing of UV-A light treatment for mitigation of NH3, H2S, GHGs, VOCs, odor, and O3 inside the poultry barn." <em>Frontiers in Chemistry</em> 8 (2020): 613. DOI: <a href="https://doi.org/10.3389/fchem.2020.00613" target="_blank">10.3389/fchem.2020.00613</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/abe_eng_pubs/1150/
dc.identifier.articleid 2435
dc.identifier.contextkey 18741467
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath abe_eng_pubs/1150
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/92953
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/abe_eng_pubs/1150/2020_KozielJacek_PilotScale.pdf|||Fri Jan 14 18:51:58 UTC 2022
dc.source.uri 10.3389/fchem.2020.00613
dc.subject.disciplines Agriculture
dc.subject.disciplines Bioresource and Agricultural Engineering
dc.subject.disciplines Environmental Chemistry
dc.subject.disciplines Environmental Engineering
dc.subject.disciplines Toxicology
dc.subject.keywords air pollution
dc.subject.keywords odor
dc.subject.keywords indoor air quality
dc.subject.keywords ammonia
dc.subject.keywords emissions
dc.subject.keywords poultry production
dc.subject.keywords photocatalysis
dc.subject.keywords concentrated animal feeding operations
dc.title Pilot-Scale Testing of UV-A Light Treatment for Mitigation of NH3, H2S, GHGs, VOCs, Odor, and O3 Inside the Poultry Barn
dc.type article
dc.type.genre article
dspace.entity.type Publication
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