
Agricultural and Biosystems Engineering Publications
Document Type
Article
Publication Version
Published Version
Publication Date
2014
Journal or Book Title
Transactions of the ASABE
Volume
57
Issue
1
First Page
211
Last Page
217
DOI
10.13031/trans.57.10206
Abstract
The effect of ventilation rate (VR) on ammonia and greenhouse gas emissions from co-composting dead hens mixed with hen manure was quantified. Three VR levels of 0.9, 0.7, and 0.5 m3 h-1 were evaluated. Gaseous concentrations were measured using a multi-gas infrared photoacoustic analyzer, VR was measured with flowmeters, and the gas emission rate was computed from the VR and gas concentration. Decomposition of the carcasses over the 11-week composting period was greater than 88%. VR was found to significantly affect NH3, CO2, and CH4 emissions (p < 0.05). Specifically, cumulative emissions per kg of initial matter for VR of 0.9, 0.7, and 0.5 m3 h-1 were, respectively, 2.4, 2.0, and 1.2 g NH3; 78, 66, and 42 g CO2; 120, 90, and 52 mg CH4; and 6.4, 6.1, and 5.1 mg N2O. Hence, the study results suggest that the ventilation rate can be adjusted to reduce NH3 and GHG emissions from animal mortality compositing.
Access
Open
Copyright Owner
American Society of Agricultural and Biological Engineers
Copyright Date
2014
Language
en
File Format
application/pdf
Recommended Citation
Zhu, Zhiping; Dong, Hongmin; Xi, Jialin; and Xin, Hongwei, "Ammonia and Greenhouse Gas Emissions from Co-Composting of Dead Hens with Manure as Affected by Forced Aeration Rate" (2014). Agricultural and Biosystems Engineering Publications. 481.
https://lib.dr.iastate.edu/abe_eng_pubs/481
Comments
This article is from Transactions of the ASABE 57 (2014): 211–217, doi:10.13031/trans.57.10206. Posted with permission.