期刊
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
卷 113, 期 -, 页码 22-27出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ibiod.2016.04.016
关键词
Lignocellulosic biomass; Dilute acid pretreatment; Biohydrogen; Dark fermentation; Spore-forming bacteria
Lignocellulosic biomass is a promising alternative source for biohydrogen production. Its recalcitrant structure requires physicochemical pretreatment methods, such as dilute acid pretreatment, to utilize the carbohydrates in the biomass for fermentation. This study was aimed to investigate the optimum substrate concentration of dilute acid lignocellulosic hydrolyzate for dark hydrogen fermentation processes. Empty palm fruit bunch, rice husk, and pine tree wood were used as the substrates. The lignocellulosic biomass samples were hydrolyzed and fed to batch hydrogen fermentation after adjustment of substrate concentration of the hydrolyzate solutions to 5, 10, 15, and 20 g/L. The maximum hydrogen production rates were 1510 +/- 96 mL H-2 L-1 day(-1),1860 +/- 245 mL H-2 L-1 day(-1), and 1629 +/- 170 mL H-2 L-1 day(-1) at 10 g L-1 substrate concentration of empty palm fruit bunch, rice husk, and pine tree wood, respectively. These correspond to hydrogen yields of 0.96 +/- 0.04 mol H-2 mol(-1) sugar, 1.25 +/- 0.15 mL H-2 mol-1 sugar, and 0.99 +/- 0.05 mL H-2 mol(-1) sugar, respectively. The results indicate that dilute acid pretreated lignocellulosic biomass would be a suitable substrate for fermentative hydrogen production. (C) 2016 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据