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Urea (CO(NH2)2) Pretreatment Improve Biogas Production Performance of Rice Straw

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Abstract:

To discuss the internal effect of urea (CO(NH2)2) pretreatment on anaerobic digestion biogas production of rice straw waste, a self-designed laboratory-scale continuous anaerobic biogas digester was used in this study. Anaerobic biogas slurry, urea pretreatment and anaerobic digestion were evaluated for biogas production from rice straw. The results showed that the peak value of biogas production was attained on the 17th day by using 6% urea pretreatment on rice straw. However, the highest CH4 content was 49.8% on the 15th day for the 8% urea-treated rice straw. The cumulative biogas production of 6% urea pretreatment was the highest, about 16 540 mL, which was followed by 2% urea (12 283 mL), 8% urea (9 883 mL), and 4% urea (5 668 mL).

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Periodical:

Applied Mechanics and Materials (Volumes 587-589)

Pages:

896-899

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.587-589.896

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Online since:

July 2014

Authors:

Ben Lin Dai, An Feng Zhu, Fei Hu Mu, Ning Xu, Zhen Wu

Keywords:

Anaerobic Digestion, Biogas, Methane, Rice Straw, Urea Pretreatment

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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