Agricultural and Biosystems Engineering Publications

Campus Units

Agricultural and Biosystems Engineering, Chemistry, Civil, Construction and Environmental Engineering, Food Science and Human Nutrition, Toxicology

Document Type

Article

Publication Version

Submitted Manuscript

Publication Date

1-2012

Journal or Book Title

Journal of Environmental Quality

Volume

41

Issue

1

First Page

281

Last Page

288

Research Focus Area(s)

Animal Production Systems Engineering

DOI

10.2134/jeq2010.0536

Abstract

The feasibility of using deep ultraviolet (UV) treatment for abatement of ammonia (NH3) in livestock and poultry barn exhaust air was examined in a series of laboratory-scale experiments. These experiments simulated moving exhaust air through an irradiation chamber with variables of UV wavelength and dose, NH3 concentrations, humidity, and presence of hydrogen sulfide (H2S). Ammonia, initially at relevant barn exhaust concentrations in air, was substantially or completely reduced by irradiation with 185 nm light. Reactions were monitored using chemiluminescence detection, gas chromatography with mass spectrometry detection, and Fourier transform infrared spectrometry, of which the latter was found to be the most informative and flexible. Detected nitrogen-containing products included N2O, NH4NO3, and HNO3. It was presumed that atomic oxygen is the primary photochemical product that begins the oxidative cascade. The data show that removal of NH3 is plausible, but they highlight concerns over pollution swapping due to formation of ozone and N2O.

Comments

This is a manuscript of an article published as Rockafellow, Erin M., Jacek A. Koziel, and William S. Jenks. "Laboratory-scale investigation of UV treatment of ammonia for livestock and poultry barn exhaust applications." Journal of Environmental Quality 41, no. 1 (2012): 281-288. DOI: 10.2134/jeq2010.0536. Posted with permission.

Copyright Owner

American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Inc.

Language

en

File Format

application/pdf

Published Version

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