Effect of CaCO₃ Pretreatment on Methane Production from Anaerobic Digestion of Rice Straw

Abstract:

The chemical pretreatment of rice straw was achieved via the liquid-state dissolution of CaCO₃. Pretreatment effects on the biodegradability and subsequent anaerobic production of methane were investigated. The results showed that the peak value of biogas production was attained of 4% CaCO₃ pretreatment on the 20^th day, which is 1 589 mL. The test daily methane content of different pretreatment conditions mainly ranges from 3.4% to 47.4%. The cumulative biogas production of 6% CaCO₃ pretreatment was the highest, about 19 917 mL.

• Periodical: Applied Mechanics and Materials (Volumes 587-589)
• Pages: 208-211
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.587-589.208
• Online since: July 2014
• Authors: Ben Lin Dai, An Feng Zhu, Fei Hu Mu, Ning Xu, Zhen Wu
• Keywords: Anaerobic Digestion, Biogas, CaCO₃ Pretreatment, Methane Production, Rice Straw

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