Comparison of One-Phase and Two-Phase Anaerobic Digestion of Swine Manure

被引:0
|
作者
Liu, Wenhao [1 ]
Tian, Shijie [1 ]
Wu, Shubiao [1 ]
Zhang, Xiaoqian [1 ]
Pang, Changle [1 ]
Dong, Renjie [1 ]
机构
[1] China Agr Univ, Coll Engn, Beijing 100083, Peoples R China
来源
ADVANCES IN ENVIRONMENTAL TECHNOLOGIES, PTS 1-6 | 2013年 / 726-731卷
关键词
Anaerobic digestion; biogas; swine manure; phase separation;
D O I
10.4028/www.scientific.net/AMR.726-731.2875
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The possible exploitation of two-phase anaerobic digestion for swine manure was investigated in this study. One-phase and two-phase anaerobic digestion process were investigated in continuous stirred-tank reactor with hydraulic retention times 15 days (hydrolysis and acidification for 3 days and methanogenic12 days in two-phase). When the organic loading rates were equal to or less than 4 g VS/L day, the biogas yield and volumetric production of two processes were no significant difference. However, in the case of organic loading rates being equal to or higher than 5.0 g VS/L day, two-phase biogas yield and volumetric biogas production averaged 0.294 L CH4/g VS added and 2.218 L/L day, compared with one-phase averaged 0.255L CH4/g VS added and 2.168 L/L day, respectively. Significant advantages in saving cost of biogas project were indicated by the comparison of biogas production and COD degradation in the one-phase and two-phase processes.
引用
收藏
页码:2875 / 2880
页数:6
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