
Agricultural and Biosystems Engineering Publications
Campus Units
Agricultural and Biosystems Engineering
Document Type
Article
Publication Version
Published Version
Publication Date
2009
Journal or Book Title
Applied Engineering in Agriculture
Volume
25
Issue
2
First Page
269
Last Page
280
Abstract
A strategy for providing partial biofiltration of a critical minimum amount of ventilation air (CMVR) from a hybrid ventilated swine finishing facility was developed and tested. The CMVR, defined as the minimum treated exhaust air that suppressed nighttime curtain opening movement, was set at 81 m3 h-1 pig-1 with the intention of providing enough fan ventilation to suppress inlet curtain movement during stable atmospheres, providing biofiltering for a high percentage of exhaust air. Two side-by-side 300-head hybrid ventilated deep-pit swine finishing rooms were used for this research, one room as the control (CTL) with the other treatment (TRT). The TRT room was fitted with a wood-chip based biofilter for scrubbing the CMVR. In terms of total room emissions, the TRT room had an average odor emission 37% less than the CTL room. Ammonia emission was 58% lower for the TRT room as compared to the CTL room. The results presented indicate that a strategy of partial biofiltration can result in significant reductions in odor and ammonia emissions when applied to hybrid ventilated swine finishing barns.
Access
Open
Copyright Owner
American Society of Agricultural and Biological Engineers
Copyright Date
2009
Language
en
File Format
application/pdf
Recommended Citation
Hoff, Steven J.; Harmon, Jay D.; Chen, Lide; Janni, Kevin A.; Schmidt, David R.; Nicolai, Richard E.; and Jacobson, Larry D., "Partial Biofiltration of Exhaust Air from a Hybrid Ventilated Deep-Pit Swine Finisher Barn" (2009). Agricultural and Biosystems Engineering Publications. 105.
https://lib.dr.iastate.edu/abe_eng_pubs/105
Comments
This article is from Applied Engineering in Agriculture 25, no. 2 (2009): 269–280.