Effect of H3PO4 Pretreatment on Biogas Production of Rice Straw during Anaerobic Digestion

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

doi:10.4028/www.scientific.net/AMR.953-954.216

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 953-954Effect of H3PO4 Pretreatment on Biogas Production...

Effect of H₃PO₄ Pretreatment on Biogas Production of Rice Straw during Anaerobic Digestion

Abstract:

To improve the gas production ability, relatively low cost H₃PO₄ was chosen as the pretreating agent in this study. Rice straws were pretreated by four different weight percentages (2%, 4%, 6% and 8%) of H₃PO₄ retting for seven days in an biochemical incubator at (25±1) °C, and the effects with different conditions of H₃PO₄ pretreatment on anaerobic digestion of rice straws for variation of components and anaerobic digestion performance (under temperature of (35±1) °C) were studied. The results showed that the peak value of biogas production was attained on the 1^st day for using 6% H₃PO₄ pretreatment on rice straw, which is 2284 mL. The test daily methane content of different pretreatment conditions mainly ranges from 3.8% to 43.1%, with the highest recorded at the 12^th day of the 2% H₃PO₄- treated rice straw. The cumulative biogas production of 6% H₃PO₄ pretreatment was the highest, about 16 474 mL.

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Advanced Materials Research (Volumes 953-954)

Pages:

216-219

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.953-954.216

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Online since:

June 2014

Authors:

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

Keywords:

Anaerobic Digestion, Biogas Production, H₃PO₄ Pretreatment, Methane Content, Rice Straw

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