期刊
BIORESOURCE TECHNOLOGY
卷 345, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2021.126496
关键词
Anaerobic digestion; Pyrolysis; Integrated process; Sargassum
资金
- Ministry of Science and Technology of the People's Republic of China [2018YFE0111000]
In this study, an integrated process of gradient controlled anaerobic digestion (AD) and pyrolysis (PY) was proposed for energy recovery of Sargassum (SA). The results showed that two methanogenic peaks occurred during the digestion process, and the integrated AD and PY process demonstrated superior energy recovery performance compared to direct PY.
In this study, an integrated process of gradient controlled anaerobic digestion (AD) and pyrolysis (PY) was proposed for energy recovery of Sargassum (SA). The methanogenic performance of SA and the PY performance of subsequent digestate were investigated. And the energy flow of the integrated process was comprehensively evaluated. The results showed that two methanogenic peaks occurred, which were appeared on the 7th day (9.57 mL/g VS) and the 17th day (15.74 mL/g VS), respectively. The structure and toughness of SA were destroyed by AD, which altered the subsequent PY performance. For the energy flow, the AD (lasted for 14 days) integrated PY process showed a superior performance compared with direct PY, as the total energy recovery increased from 5.88 to 6.42 MJ/kg TS. This study laid a foundation for the successful integration of AD and PY, which provided a guidance for the clean treatment and energy recovery of biomass.
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