Methane production and characteristics of the microbial community in the co-digestion of spent mushroom substrate with dairy manure

文献类型： 外文期刊

第一作者： Wang, Shiyu

作者： Wang, Shiyu;Hou, Zhanshan;Hu, Qingxiu;Zhai, Limei;Zou, Yajie;Luo, Xiaosha;Yuan, Xufeng;Sun, Fanrong;Cui, Zongjun

作者机构：

关键词： Spent mushroom substrate; Dairy manure; Co-digestion; Methane yield; Microbial community

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.642； 五年影响因子：9.237 ）

ISSN： 0960-8524

年卷期： 2018 年 250 卷

页码：

收录情况： SCI

摘要： Spent mushroom substrate (SMS) is a potential biomass material generated during mushroom cultivation. In this study, the methane yield and microbial community resulting from co-digestion of SMS and dairy manure (DM) at different mixing ratios (0: 4, 1: 1, 3: 1, and 1: 3), were evaluated. Co-digestion analysis showed that the methane yield from the mixtures was 6%-61% higher than the yield from SMS or DM alone, indicating a synergistic effect of co-digestion of SMS with DM. For the SMS of F. velutipes (SFv) and P. erygii var. tuoliensis (SPt), co-digestion of DM/SMS at a ratio of 1: 1 was optimal, but for the SMS of P. eryngi (SPe), co-digestion of DM/SMS at a ratio of 3: 1 was ideal. The pH at all co-digestion ratios was in the range of 6.8-8.0, indicating that adding DM could increase the systemic buffering capacity. Methanosaetaceae was shown to be the predominant methanogens present during the co-digestion of DM/SMS.

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