Cold isotherm pressing pretreatment for effective improvement of methane production from Hybrid Pennisetum
文献类型： 外文期刊
作者： Li, Hongru 1 ; Pang, Yuwan 3 ; Sun, Yongming 1 ; Xing, Tao 1 ; Yang, Gaixiu 1 ; Kong, Xiaoying 1 ; Li, Lianhua 1 ; Zhen, Feng 1 ;
作者机构： 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
3.Guangdong Acad Agr Sci, Inst Agr Resources & Environm, Guangzhou 510640, Peoples R China
4.2 Energy Rd, Guangzhou 510640, Peoples R China
关键词： Biofuel; Anaerobic digestion; Ultra-high pressure; Sustainable pretreatment; Microbial diversity
期刊名称：FUEL （ 影响因子：7.4； 五年影响因子：7.0 ）
ISSN： 0016-2361
年卷期： 2023 年 353 卷
页码：
收录情况： SCI
摘要： Ultra-high pressing pretreatment has been employed to effectively improve methane production from Hybrid Pennisetum. In this study, Hybrid Pennisetum was pretreated by cold isostatic pressing (CIP) to improve methane production. The pretreatment enhanced the accessibility between the substrate and inoculum. The decomposition of the compact biomass structure was analyzed through Fourier Transform Infrared Spectrometer (FT-IR) and X-ray Diffractometer (XRD). Moreover, the electron transfer capability in the system was evaluated by electrochemical analysis. The systematic experiment yielded the highest methane production at a pressure of 400Mpa, reaching 227.67 mL/g VS. The pretreatment changed the reducing sugar content (RS), pH, and volatile fatty acids (VFAs) in the AD system, which in turn increased the cumulative methane production. This study provides a promising platform for the development of an efficient methanogenic pretreatment.
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