Effects of Supplemental Levels of Fermented Compost on the Early Stage Composting Process of Pig Manure
2009
Jeong, K.H., National Institute of Animal Science, RDA, Suwon, Republic of Korea | Heo, M.Y., National Institute of Animal Science, RDA, Suwon, Republic of Korea | Kim, J.H., National Institute of Animal Science, RDA, Suwon, Republic of Korea | Kwag, J.H., National Institute of Animal Science, RDA, Suwon, Republic of Korea | Jeong, M.S., National Institute of Animal Science, RDA, Suwon, Republic of Korea | Kang, H.S., National Institute of Animal Science, RDA, Suwon, Republic of Korea
The best way to treat livestock manure is to recycle as much as possible. The composting of livestock manure is a safe and economical treatment process. This study was carried out to investigate decomposition effect of pig manure by adding fermented compost. The fermented compost was added in pig manure mixed with sawdust as an inoculator, and the mixture was fed to composting reactor. Supplemental levels of fermented compost on the pig manure mixed with sawdust were regulated at 5, 10, 15 and 20% (V/V) respectively. The results were as follows ; 1. In all cases, PH range was between 7.6~9.05 during composting period. 2. The highest temperature and the long duration of thermophilic stage were observed in control treatment. 3. The number of microorganism reached at maximum on day 4, which recorded the highest temperature 4. Compost pile mixed with 10% of inoculator (fermented compost) showed the highest C/N ratio reduction.
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