期刊
BIORESOURCE TECHNOLOGY
卷 245, 期 -, 页码 401-410出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2017.08.124
关键词
Hyperthermophilic; Waste activated sludge; Temperature phased; Anaerobic digestion; Microbial community
资金
- China Scholar Council (CSC) [201206230087]
- Grants-in-Aid for Scientific Research [16J02584] Funding Source: KAKEN
In order to investigate the phase separation and microbial distribution in the TPAD, the conventional thermophilic-mesophilic type (TM-TPAD) and the hyperthermophilic-mesophilic type (HM-TPAD) were operated with a single-stage mesophilic anaerobic digestion (MAD) as control. HM-TPAD accomplished the volatile solids destruction 14.5% higher than MAD. Calculating conversion efficiencies distinguished the separation of acidogenic and methanogenic phases in HM-TPAD, which was not found in TM-TPAD. The differences on microbial distributions also reflected the phase separation in HM-TPAD. The protein degraders, Coprothermobacter had higher abundance in the first stage than the second stage of HM-TPAD but it had similar abundance between the two stages of TM-TPAD. Also, the archaeal communities from the two stages of HM-TPAD shared the least similarity but those from the two stages of TM-TPAD were closely similar.
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