期刊
BIORESOURCE TECHNOLOGY
卷 155, 期 -, 页码 122-128出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2013.12.055
关键词
Enzymes; Lignocellulosic biomass; Metabolic activity; Methane; Sludge
Biochemical methane potential (BMP) tests were run on ensiled sorghum forage using four inocula (urban, agricultural, mixture of agricultural and urban, granular) and differences on their metabolic and enzymatic activities were also discussed. Results indicate that no significant differences were observed in terms of BMP values (258 +/- 14 NmLCH(4) g (VS)-V-1) with a slightly higher value when agricultural sludge was used as inoculum. Significant differences can be observed among different inocula, in terms of methane production rate. In particular the fastest biomethanization occurred when using the urban sludge (hydrolytic kinetic constant k(h) = 0.146 d (1)) while the slowest one was obtained from the agricultural sludge (k(h) = 0.049 d (1)). Interestingly, positive correlations between the overall enzymatic activities and methane production rates were observed for all sludges, showing that a high enzymatic activity may favour the hydrolysis of complex substrate and accelerate the methanization process of sorghum. (C) 2013 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