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Comparison of Greenhouse Gas Emission from Liquid Swine Manure According to Aeration Levels in Summer  

Choi, Dong-Yoon (National Institute of Animal Science, R.D.A.)
Park, Kyu-Hyun (National Institute of Animal Science, R.D.A.)
Cho, Sung-Back (National Institute of Animal Science, R.D.A.)
Yang, Seong-Hak (National Institute of Animal Science, R.D.A.)
Hwang, Ok-Hwa (National Institute of Animal Science, R.D.A.)
Kwag, Jung-Hoon (National Institute of Animal Science, R.D.A.)
Ahn, Hee-Kwon (National Institute of Animal Science, R.D.A.)
Yoo, Yong-Hee (National Institute of Animal Science, R.D.A.)
Publication Information
Journal of Animal Environmental Science / v.17, no.3, 2011 , pp. 163-170 More about this Journal
Abstract
This study was carried out to investigate greenhouse gas (GHG), $CH_4$ and $N_2O$, emission from liquid swine manure according to aeration levels in summer. To evaluate the influence of operation methods on GHG emissions, liquid swine manure were applied with different rates of aeration (store without aeration, $1m^3/ton/h$, $2.5m^3/ton/h$, and $5m^3/ton/h$). Following are the results of this study. The liquid swine manure applied no aeration, $1m^3/ton/h$, $2.5m^3/ton/h$, and $5m^3/ton/h$ aeration rates released 315.6, 13.9, 17.9 and $9.6{\mu}g/m^2/s$ of $CH_4$ and 0.173, 0.157, 0.131, and $0.241{\mu}g/m^2/s$ of $N_2O$, respectively. Liquid swine manure applied no aeration released the most amount of GHG ($6,681.4{\mu}g/m^2/s$ $CO_2$-Eq.) and followed by $5m^3/ton/h$ ($276.4{\mu}g/m^2/s$ $CO_2$-Eq.), $2.5m^3/ton/h$ ($416.0{\mu}g/m^2/s$ $CO_2$-Eq.), and $1m^3/ton/h$ ($340.8{\mu}g/m^2/s$ $CO_2$-Eq.). Our results reveal that the aerated system may reduce GHG emissions compared to no aeration. Consequently, aeration and mixing were effective at reducing GHG emissions during liquid swine manure storage.
Keywords
GHG; Emission; Liquid swine manure; Methane; Nitrous oxide;
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