期刊
BIORESOURCE TECHNOLOGY
卷 282, 期 -, 页码 37-47出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2019.02.122
关键词
Agricultural biomass waste; Anaerobic co-digestion; Biogas; Biogas slurry; Microbial community shift
资金
- National Key Research and Development Program of China [2017YFD0800804-03]
- National Natural Science Foundation of China [51678553, 21876167, 21477122]
- Project of the Natural Science Foundation of Fujian Province [2016J01273, 2017J05092]
- Xiamen Science and Technology Project [3502Z20182003]
- IUE CAS Young Talents Frontier Project [IUEQN201501]
- FY2015 Japanese-China Research Cooperative Program [2016YFE0118000]
Anaerobic co-digestion (AcoD) is proved as an effective approach to solving a bottleneck problem of the low biogas yield in agricultural biomass waste treatment with anaerobic digestion (AD) technology. The present study investigated the effect of C/N radio, organic loading rate (OLR) and total solids (TS) contents on reactor performance in AcoD of pig manure and corn straw for simultaneous biogas and biogas slurry production. It was found that the highest biogas production was obtained at C/N ratio of 25, while the best biogas slurry performance was achieved at C/N ratio of 35. And high OLR and TS resulted in good performances in both biogas production and biogas slurry. At last, the microbial community analysis suggested that Bacteroidetes played a significant role in AcoD process. Acetoclastic methanogenesis was the main pathway for methane production in the stable system. And changing operational parameters could transform and shift the microbial community.
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