Comparison of methane production potential, biodegradability, and kinetics of different organic substrates

被引：230
作者：
Li, Yeqing [1 ]
Zhang, Ruihong [1 ,2 ]
Liu, Guangqing [1 ]
Chen, Chang [3 ]
He, Yanfeng [1 ]
Liu, Xiaoying [1 ]
机构：
[1] Beijing Univ Chem Technol, Coll Chem Engn, Biomass Energy & Environm Engn Res Ctr, Beijing 100029, Peoples R China
[2] Univ Calif Davis, Dept Biol & Agr Engn, Davis, CA 95616 USA
[3] Beijing Univ Chem Technol, Coll Life Sci & Technol, Beijing 100029, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2013年 / 149卷
基金：
中国国家自然科学基金;
关键词：
Biomethane potential; Biodegradability; Lignin; Organic substrates; Kinetics; BIOGAS PRODUCTION; ANAEROBIC-DIGESTION; INOCULUM SOURCE; CHICKEN MANURE; CO-DIGESTION; FOOD WASTE; PREINCUBATION; FEEDSTOCKS; STOVER; BMP;
D O I：
10.1016/j.biortech.2013.09.063
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The methane production potential, biodegradability, and kinetics of a wide range of organic substrates were determined using a unified and simple method. Results showed that feedstocks that contained high energy density and easily degradable substrates exhibited high methane production potential and biodegradability. Lignocellulosic biomass with high content of fibrous compositions had low methane yield and biodegradability. Feedstocks with high lignin content ( >= 15%, on a TS basis) had low first-order rate constant (0.05-0.06 1/d) compared to others. A negative linear correlation between lignin content and experimental methane yield (or biodegradability) was found for lignocellulosic and manure wastes. This could be used as a fast method to predict the methane production potential and biodegradability of fiber-rich substrates. The findings of this study provided a database for the conversion efficiency of different organic substrates and might be useful for applications of biomethane potential assay and anaerobic digestion in the future. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：565 / 569
页数：5
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