Comparison of methane production potential, biodegradability, and kinetics of different organic substrates
Comparison of methane production potential, biodegradability, and kinetics of different organic substrates
复制标题
不同有机底物的甲烷生产潜力、生物降解性和动力学比较
DOI：
10.1016/j.biortech.2013.09.063
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发表时间：
2013-12-01
影响因子：
11.4
通讯作者：
Liu, Xiaoying
中科院分区：
文献类型：
--
作者：
Li, Yeqing;Zhang, Ruihong;Liu, Xiaoying
甲烷生产潜力，生物降解性和动力学的广泛的有机基质使用统一和简单的方法进行了测定。结果表明，能量密度高、基质易降解的原料具有较高的产甲烷潜力和生物降解性。纤维组分含量高的木质纤维素生物质甲烷产率低，可生化性差。与其它原料相比，具有高木质素含量（>= 15%，基于TS）的原料具有低的一级速率常数（0.05- 0.061/d）。木质素含量和实验甲烷产量（或生物降解性）之间的负线性相关性被发现为木质纤维素和粪肥废物。这可以作为一种快速的方法来预测甲烷生产潜力和生物降解性的纤维丰富的基质。本研究结果为不同有机基质的转化效率提供了数据库，并可能有助于未来生物甲烷潜力测定和厌氧消化的应用。(C)2013爱思唯尔有限公司保留所有权利。
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.