Change of Heating Value of Cow Manure According to Pre-treatment

Autor: Jung-Kon Kim, Won-Mo Cho, Dong-Jun Lee, Dong-Hyun Lee, Kwang-Hwa Jeong
Rok vydání: 2015
Předmět:
Zdroj: Journal of the Korea Organic Resource Recycling Association. 23:63-73
ISSN: 1225-6498
DOI: 10.17137/korrae.2015.23.4.063
Popis: This study was carried out to evaluate the change of heating value of cow manure by applying pre-treatment process. Three types of treatment precess; Composting, Dry anaerobic digestion and Physical compression were applied as a pre-treatment method. Composting and anaerobic digestion of cow manure were cause of caloric value reduction of the cow manure. The heating value of cured compost was 5% lower than that of initial composting material. The heating value of dry anaerobic digestion residue was 25.7% lower than that of fresh cow manure. By physical compression of cow manure, heating value and VS/TS ratio (Volatile solids/Total solids ratio) of compressed cow manure were higher than that of fresh cow manure. On the other hand, heating value and VS/TS ratio of leachate generated by compression process were lower than those of fresh cow manure.
Databáze: OpenAIRE