Design and Testing of Mobile Laboratory for Mitigation of Gaseous Emissions from Livestock Agriculture with Photocatalysis

Myeongseong Lee, Jacek A. Koziel, Wyatt Murphy, William S. Jenks, Blake Fonken, Ryan Storjohann, Baitong Chen, Peiyang Li, Chumki Banik, Landon Wahe and Heekwon Ahn
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Myeongseong Lee: Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA
Jacek A. Koziel: Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA
Wyatt Murphy: Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA
William S. Jenks: Department of Chemistry, Iowa State University, Ames, IA 50011, USA
Blake Fonken: Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA
Ryan Storjohann: Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA
Baitong Chen: Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA
Peiyang Li: Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA
Chumki Banik: Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA
Landon Wahe: Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA
Heekwon Ahn: Department of Animal Biosystems Sciences, Chungnam National University, Daejeon 34134, Korea

IJERPH, 2021, vol. 18, issue 4, 1-21

Abstract: Livestock production systems generate nuisance odor and gaseous emissions affecting local communities and regional air quality. There are also concerns about the occupational health and safety of farmworkers. Proven mitigation technologies that are consistent with the socio-economic challenges of animal farming are needed. We have been scaling up the photocatalytic treatment of emissions from lab-scale, aiming at farm-scale readiness. In this paper, we present the design, testing, and commissioning of a mobile laboratory for on-farm research and demonstration of performance in simulated farm conditions before testing to the farm. The mobile lab is capable of treating up to 1.2 m 3 /s of air with titanium dioxide, TiO 2 -based photocatalysis, and adjustable UV-A dose based on LED lamps. We summarize the main technical requirements, constraints, approach, and performance metrics for a mobile laboratory, such as the effectiveness (measured as the percent reduction) and cost of photocatalytic treatment of air. The commissioning of all systems with standard gases resulted in ~9% and 34% reduction of ammonia (NH 3 ) and butan-1-ol, respectively. We demonstrated the percent reduction of standard gases increased with increased light intensity and treatment time. These results show that the mobile laboratory was ready for on-farm deployment and evaluating the effectiveness of UV treatment.

Keywords: air pollution control; air quality; volatile organic compounds; odor; environmental technology; advanced oxidation; UV-A; titanium dioxide (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
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