A pilot plant two-phase anaerobic digestion system for bioenergy recovery from swine wastes and garbage |
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Authors: | Feng Chuanping Shimada Sadoru Zhang Zhenya Maekawa Takaaki |
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Institution: | School of Water Resource and Environmental Science, China University of Geosciences, No. 29, Xueyuan Road, Haidian District, Beijing 100083, China. |
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Abstract: | A pilot plant bioenergy recovery system from swine waste and garbage was constructed. A series of experiments was performed using swine feces (SF); a mixture of swine feces and urine (MSFU); a mixture of swine feces, urine and garbage (MSFUG); garbage and a mixture of urine and garbage (AUG). The system performed well for treating the source materials at a high organic loading rate (OLR) and short hydraulic retention time (HRT). In particular, the biogas production for the MSFUG was the highest, accounting for approximately 865-930Lkg(-1)-VS added at the OLR of 5.0-5.3kg-VSm(-3)day(-1) and the HRT of 9 days. The removal of VS was 67-75%, and that of COD was 73-74%. Therefore, co-digestion is a promising method for the recovery of bioenergy from swine waste and garbage. Furthermore, the results obtained from this study provide fundamental information for scaling up a high-performance anaerobic system in the future. |
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