Agricultural and Biosystems Engineering Publications
Campus Units
Agricultural and Biosystems Engineering, Civil, Construction and Environmental Engineering, Food Science and Human Nutrition, Environmental Science, Toxicology, Bioeconomy Institute (BEI), Chemistry
Document Type
Article
Publication Version
Submitted Manuscript
Publication Date
3-2-2021
Journal or Book Title
Preprints
First Page
2021030045
Research Focus Area(s)
Animal Production Systems Engineering
DOI
10.20944/preprints202103.0045.v1
Abstract
It is essential to mitigate gaseous emissions that result from poultry and livestock production to increase industry sustainability. Odorous volatile organic compounds (VOCs), ammonia (NH3), hydrogen sulfide (H2S), and greenhouse gases (GHGs) have detrimental effects on the quality of life in rural communities, the environment, and climate. This study's objective was to evaluate the photocatalytic UV treatment of gaseous emissions of odor, odorous VOCs, NH3, and other gases (GHGs, O3 – sometimes considered as by-products of UV treatment) from stored swine manure on a pilot-scale. The manure emissions were treated in fast-moving air using a mobile lab equipped with UV-A and UV-C lights and TiO2-based photocatalyst. Treated gas airflow (0.25 to 0.76 m3/s) simulates output from a small ventilation fan in a barn. Through controlling the light intensity and airflow, UV dose was tested for techno-economic analyses. The treatment effectiveness depended on the UV dose and wavelength. Under UV-A (367 nm) photocatalysis, the percent reduction of targeted gases was up to i) 63% of odor, ii) 51%, 51%, 53%, 67%, and 32% of acetic acid, propanoic acid, butanoic acid, p-cresol, and indole, respectively, iii) 14% of nitrous oxide (N2O), iv) 100% of O3, and 26% generation of CO2. Under UV-C (185+254 nm) photocatalysis, the percent reductions of target gases were up to i) 54% and 47% for p-cresol and indole, respectively, ii) 25% of N2O, iii) 71% of CH4, and 46% & 139% generation of CO2 & O3, respectively. The results proved that the UV technology was sufficiently effective in treating odorous gases, and the mobile lab was ready for farm-scale trials. The UV technology can be considered for the scaled-up treatment of emissions and air quality improvement inside livestock barns.
Access
Open
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Copyright Owner
The Author(s)
Copyright Date
2021
Language
en
File Format
application/pdf
Recommended Citation
Lee, Myeongseong; Koziel, Jacek A.; Murphy, Wyatt; Jenks, William S.; Chen, Baitong; Li, Peiyang; and Banik, Chumki, "Evaluation of TiO2 Based Photocatalytic Treatment of Odor and Gaseous Emissions From Swine Manure With UV-A and UV-C" (2021). Agricultural and Biosystems Engineering Publications. 1189.
https://lib.dr.iastate.edu/abe_eng_pubs/1189
Included in
Agriculture Commons, Bioresource and Agricultural Engineering Commons, Civil Engineering Commons, Environmental Chemistry Commons, Environmental Health Commons
Comments
This is a pre-print of the article Lee, Myeongseong, Jacek A. Koziel, Wyatt Murphy, William S. Jenks, Baitong Chen, Peiyang Li, and Chumki Banik. "Evaluation of TiO2 Based Photocatalytic Treatment of Odor and Gaseous Emissions From Swine Manure With UV-A and UV-C." Preprints (2021): 2021030045. DOI: 10.20944/preprints202103.0045.v1. Posted with permission.