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Investigation on the Characteristics of Vertical Composting System Using Layer Manure  

Kwag, J.H. (National Institute of Animal Science, RDA.)
Kim, J.H. (National Institute of Animal Science, RDA.)
Cho, S.H. (National Institute of Animal Science, RDA.)
Jeong, K.H. (National Institute of Animal Science, RDA.)
Choi, D.Y. (National Institute of Animal Science, RDA.)
Jeong, Y.S. (National Institute of Animal Science, RDA.)
Jeong, M.S. (National Institute of Animal Science, RDA.)
Kang, H.S. (National Institute of Animal Science, RDA.)
Ra, C.S. (Kangwon Nat. Univ.)
Publication Information
Journal of Animal Environmental Science / v.16, no.3, 2010 , pp. 237-244 More about this Journal
Abstract
Using a vertical composting system in layer farms, the composting process was characterized in terms of temperature variation, change of moisture contents, fertilizer ingredient and so on. In this study, two types of layer farms were examined. The layer manure was produced as 3,300 and 116,650 kg/day for Farm A and Farm B, respectively. Also, their average moisture contents were 74.4% (Farm A) and 65.6 % (Farm B). The inside temperature of composting in Farm A was varied in the range of 50 to $70^{\circ}C$, and moisture content of it decreased from 59.5% to 20.6% at the edge of vertical composting system. While in Farm B, composting temperature was fluctuated between 50 and $65^{\circ}C$ and moisture content declined from 34.0% to 13.4% at the end of vertical composting system. The fertilizer ingredients such as T-N, $P_2O_5$ and $K_2O$ were not significantly influenced by seasonal effect. Their values were changed in the range of 0.90% to 0.47% for T-N, 0.16% to 0.42% for $P_2O_5$, and 0.22% to 0.28 for $K_2O$, respectively. Also, OM/N ratio was varied from 36.8 to 84.4.
Keywords
Layer manure; Composting; Moisture content;
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