Agricultural and Biosystems Engineering Publications
Document Type
Article
Publication Version
Published Version
Publication Date
5-5-2017
Journal or Book Title
PLoS ONE
Volume
12
Issue
5
First Page
e0176825
DOI
10.1371/journal.pone.0176825
Abstract
Managing the disposal of infectious animal carcasses from routine and catastrophic disease outbreaks is a global concern. Recent research suggests that burial in lined and aerated trenches provides the rapid pathogen containment provided by burial, while reducing air and water pollution potential and the length of time that land is taken out of agricultural production. Survival of pathogens in the digestate remains a concern, however. A potential answer is a ‘dual’-barrier approach in which ammonia is used as a secondary barrier treatment to reduce the risk of pathogen contamination when trench liners ultimately leak. Results of this study showed that the minimum inhibitory concentration (MIC) of NH3 is 0.1 M (~1,468 NH3-N mg/L), and 0.5 M NH3 (~7,340 NH3-N mg/L) for ST4232 & MRSA43300, respectively at 24 h and pH = 9±0.1 and inactivation was increased by increasing NH3 concentration and/or treatment time. Results for digestate treated with NH3 were consistent with the MICs, and both pathogens were completely inactivated within 24 h.
Access
Open
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright Owner
Koziel et al.
Copyright Date
2017
Language
en
File Format
application/pdf
Recommended Citation
Koziel, Jacek A.; Frana, Timothy S.; Ahn, Heekwon; Glanville, Thomas D.; Nguyen, Lam T.; and van Leeuwen, J. (Hans), "Efficacy of NH3 as a secondary barrier treatment for inactivation of Salmonella Typhimurium and methicillin-resistant Staphylococcus aureus in digestate of animal carcasses: Proof-of-concept" (2017). Agricultural and Biosystems Engineering Publications. 806.
https://lib.dr.iastate.edu/abe_eng_pubs/806
Included in
Agriculture Commons, Bioresource and Agricultural Engineering Commons, Environmental Engineering Commons, Large or Food Animal and Equine Medicine Commons
Comments
This article is from PLoS ONE 12(5): e0176825. https://doi.org/10.1371/journal.pone.0176825.