Effects of straw type and ratio change on microbial community in anaerobic digestion of sludge

被引：0
|
作者：
Tang, Taotao [1 ]
Li, Jiang [1 ,2 ]
Yang, Aijinag [1 ,2 ]
Yang, Zhao [1 ]
Xiang, Fuliang [1 ]
Yuan, Huayu [1 ]
机构：
[1] College of Resources and Environmental Engineering, Guizhou University, Guiyang,Guizhou,550025, China
[2] Institute of Environmental Engineerting Planing and Designing, Guizhou University, Guiyang,Guizhou,550025, China
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2020年 / 39卷 / 02期
关键词：
In order to investigate the effects of straw type and ratio change on microbial community structure in sludge anaerobic digestion system; 16S rRNA high-throughput sequencing technology was used to analyze the microbial community in sludge-straw anaerobic co-digestion system. The results showed that addition of corn straw had a great influence on the pH and volatile fatty acids (VFAs) in the system; especially on acetic acid. Addition of wheat and rice straw had a greater effect on alkalinity; but the VFAs and acetic acid concentrations in the system increased when the ratio increased; especially 1:1.5 (mass ratio of volatile solids). Through the analysis of microbial community structure; it was found that the change of straw ratio and types could significantly increase the relative abundance of hydrolysis bacteria and acidification bacteria (p © 2020; Chemical Industry Press. All right reserved;
D O I：
10.16085/j.issn.1000-6613.2019-0777
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页码：667 / 678
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