Effect of agitation pretreatment on anaerobic digestion of swine manure

被引：6
|
作者：
Yang, Yuan [1 ]
Cheng, Guang [1 ]
Li, Yaoyue [1 ]
Wang, Tenghao [1 ]
Li, Fei [1 ]
Huang, Weiwei [1 ]
机构：
[1] East China Univ Sci & Technol, Key Lab Coal Gasificat & Energy Chem Engn, Minist Educ, Shanghai, Peoples R China
来源：
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS | 2019年 / 41卷 / 01期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Agitation pretreatment; anaerobic digestion; biogas production; soluble organic matter; swine manure;
D O I：
10.1080/15567036.2018.1503758
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
This study evaluated the effect of mechanical agitation pretreatment on anaerobic digestion (AD) of swine manure (SM). The results showed a remarkable increase in soluble polysaccharides, soluble proteins, and soluble chemical oxygen demand (SCOD) by 82.42%, 121.17%, and 114.89%, respectively, after the SM being agitated for 22 h. No improvement in the volatile fatty acids (VFAs) yield was observed during the agitation pretreatment. Apparently, agitation significantly accelerated the hydrolysis of SM, while it did not seem to enhance the acidification step. Batch AD experiments showed an improved accumulative methane yield by 77.89% with the pretreated SM compared to raw SM.
引用
收藏
页码：122 / 128
页数：7
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