Agricultural and Biosystems Engineering Publications
Campus Units
Agricultural and Biosystems Engineering
Document Type
Article
Publication Version
Published Version
Publication Date
2017
Journal or Book Title
Sustainability
Volume
9
Issue
6
First Page
929
DOI
10.3390/su9060929
Abstract
Managing the environmental impacts associated with livestock production is a challenge for farmers, public and regulatory agencies. Sustainable solutions that take into account technical and socioeconomic factors are needed. For example, the comprehensive control of odors, ammonia (NH3), hydrogen sulfide (H2S), and greenhouse gas (GHG) emissions from swine production is a critical need. Stored manure is a major source of gaseous emissions. Mitigation technologies based on bio-based products such as biochar are of interest due to the potential benefits of nutrient cycling. The objective of this study was to test non-activated (non-functionalized) biochar for the mitigation of gaseous emissions from stored manure. Specifically, this included testing the effects of: (1) time; and (2) dosage of biochar application to the swine manure surface on gaseous emissions from deep-pit storage. The biochar surface application was tested with three treatments (1.14, 2.28 and 4.57 kg·m−2 manure) over a month. Significant reductions in emissions were observed for NH3 (12.7–22.6% reduction as compared to the control). Concomitantly, significant increases in CH4emissions (22.1–24.5%) were measured. Changes to emissions of other target gases (including CO2, N2O, H2S, dimethyl disulfide/methanethiol, dimethyl trisulfide, n-butyric-, valeric-, and isovaleric acids, p-cresol, indole, and skatole) were not statistically significant. Biochar treatment could be a promising and comparably-priced option for reducing NH3emissions from stored swine manure.
Access
Open
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Copyright Owner
The authors
Copyright Date
2017
Language
en
File Format
application/pdf
Recommended Citation
Maurer, Devin L.; Koziel, Jacek A.; Kalus, Kajetan; Andersen, Daniel S.; and Opalinski, Sebastian, "Pilot-Scale Testing of Non-Activated Biochar for Swine Manure Treatment and Mitigation of Ammonia, Hydrogen Sulfide, Odorous Volatile Organic Compounds (VOCs), and Greenhouse Gas Emissions" (2017). Agricultural and Biosystems Engineering Publications. 807.
https://lib.dr.iastate.edu/abe_eng_pubs/807
Comments
This article is from Sustainability 2017, 9(6), 929; doi:10.3390/su9060929. Posted with permission.