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Energy Sources, Part A: Recovery, Utilization, and Environmental Effects Volume 32, 2010 - Issue 20
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Original Articles

The Effects of Alkaline Pretreatment Parameters on Anaerobic Biogasification of Corn Stover

M. Zheng Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing, China
,
L. Li Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing, China
,
X. Li Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing, China
,
J. Xiong Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing, China
,
T. Mei Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing, China
&
G. Chen Department of Environmental Science and Engineering, Beijing University of Chemical Technology, Beijing, China
Pages 1918-1925 | Received 12 Dec 2008, Accepted 31 Mar 2009, Published online: 10 Aug 2010
 
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Abstract

The effects of the treatment of corn stover with sodium hydroxide (NaOH) on its digestibility and biogas production was studied varying the initial stover-treatment time (3 days and 6 days), temperature (10, 20, 30, and 50°C), and moisture level (50, 75, 85, and 90%). The degradation rates of hemicellulose, cellulose, and lignin increased with the increasing treatment time, temperature, and moisture content. The highest biogas and methane yield were 420.6 and 233.0 mL/g VS achieved by the stovers treated at 20°C and moisture level of 90% for 3 days. The results showed that the ambient temperature (20°C), moisture level of 90%, and three days pretreatment could be recommended.

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