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The Bioenergy Conversion Characteristics of Feedlot Manure Discharging from Beef Cattle Barn
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 Title & Authors
The Bioenergy Conversion Characteristics of Feedlot Manure Discharging from Beef Cattle Barn
Oh, Seung-Yong; Kim, Chang-Hyun; Yoon, Young-Man;
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This study was carried out to assess bioenergy conversion efficiency by biogas and solid fuel production in the cattle feedlot manure discharged from beef cattle barn. Feedlot manure was sampled from the cattle farmhouse located in Yong-in, Gyeonggi during the mid-fattening stage, periodically. The chemical characteristics, BMP (Biochemical methane potential) and HV (Heating values) of feedlot cattle manures were analyzed. Total solid contents of cattle feedlot manure were in the range of 29.98~44.28%, and volatile solid contents were in the range of 23.53~24.47%. In the anaerobic digestion of cattle feedlot manure, the methane production potential has increased from 0.141 to . The methane production of fresh cattle feedlot manure showed the range -Manure (average -Manure), the LHVs (lower heating values) of the produced methane were in the range of -Manure (average -Manure). In the direct combustion of fresh cattle feedlot manure, the LHVs were measured in the range of -Manure (average -Manure), and LHVs of solid fuel which have the water content of 20% were in the range of -Manure (average -Manure). Then, the drying energy of average -Manure was consumed in the production of solid fuel which has a water content of 20%. Therefore, the direct combustion of cattle feedlot manure showed about 2.3 times higher LHV than the LHV of methane produced by anaerobic digestion. And LHV of solid fuel was about 6.0 times higher than the LHV of methane produced by anaerobic digestion. Then, the production of solid fuel presented more bioenergy conversion efficiency than the biogas production in the bioenergy use of cattle feedlot manure.
Anaerobic digestion;Biogas;Cattle feedlot manure;Heating value;Solid fuel;
 Cited by
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