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http://dx.doi.org/10.17137/korrae.2021.29.1.29

Effect of storage temperature, period, and sawdust addition on the biochemical methane potential of cattle manure  

Im, Seongwon (Department of Civil Engineering, Inha University)
Kim, Sangmi (Department of Civil Engineering, Inha University)
Kim, Hyu hyoung (Kyungwoo Clean Tech, Co., Ltd.)
Kim, Dong-Hoon (Department of Civil Engineering, Inha University)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.29, no.1, 2021 , pp. 29-36 More about this Journal
Abstract
In spite of the highest energy potential among all domestic organic solid wastes. the research on biogas production from cattle manure is limited. In particular, effects of organic content degradation and sawdust addition during storage on biomethane potential have never been investigated. In the present work, we investigated the change of organic content during storage of cattle manure under different temperatures (20℃ and 30℃), and its impact on biomethane potential and odor emissions. 90 days of investigation results showed that 10% of organics in terms of VS and COD were degraded at 20℃ during storage, while 30% were degraded at 30℃. This result impacted on biomethane potential, while 10-13% and 24% reduction were observed from beef and dairy cattle manure, respectively. The temperature also affected on CH4 and odor emissions during storage by 3.3-3.8 times and 29 times. The effect of sawdust on lowering down biomethane potential was found to be substantial, reducing 61-75% compared to the control.
Keywords
Cattle manure; Storage temperature; Biomethane potential; Odor; Sawdust;
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