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http://dx.doi.org/10.17137/korrae.2017.25.2.69

Analysis of the Composting Effect on Cow Manure by Aeration and Comparison of Characteristics of Cow Manure Pellet Composts According to Granulation Processing Method  

Jeong, Kwang-Hwa (National Institute of Animal Science (NIAS), RDA)
Kim, Jung-Kon (National Institute of Animal Science (NIAS), RDA)
Lee, Dong-jun (National Institute of Animal Science (NIAS), RDA)
Ravindran, B. (National Institute of Animal Science (NIAS), RDA)
Kwag, Jung-Hoon (National Institute of Animal Science (NIAS), RDA)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.25, no.2, 2017 , pp. 69-76 More about this Journal
Abstract
In the Korea, 80 percent of livestock manure were converted into compost and used as organic fertilizers. The livestock manure compost has two types of powder and pellet type (ID= 5~10 mm). The aim of this study was to investigate the properties of two types of cow manure compost pellet (cylinder and sphere type). Nitrogen concentrations of cylinder type and sphere type of compost pellets were 1.23 and 1.24%, respectively. There were similar with nitrogen concentration of cylinder and sphere types of compost pellets. As a result of analyzing the effect of granulation processing, it was found that the moisture content of the raw material was the most influential factor in the granulation processing in both of the processing types of the screw pressing method and the rotating cylinder method. When the cylinder and sphere types of compost pellets were dry to 20% of moisture content, the specific gravities of these compost pellets were 1.38 and 1.13, respectively. The compressive strength of cylinder type pellet and sphere type pellet were 27.6 and $11.3kg/cm^2$, respectively.
Keywords
Composting; Cow manure; Pelletized compost;
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