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《Hubei Agricultural Sciences》 2010-03
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Primary Study on Parameters of C/N and C/P for Raising Biogas Producing Efficiency with Rice Straw

YU Ai-he1,LIU Zhao-bing2,ZHAO Ke-qin1,CAI Li-xiang3,JI Xiong-hui2,SHI Li-hong2(1.Hunan Mechanical & Electrical Polytechnic,Changsha 410151,China;2.Hunan Institute of Soil and Fertilizer,Changsha 410125,China;3.Hunan Academy of Agricultural Science,Changsha 410125,China)  
The biogas producing model and the optimal C/N,C/P ratio were studied using simulative constant-temperature biogas-pool set in laboratory.The results showed that the dynamic of daily accumulative biogas yield with rice straw was significantly accorded with Peal-Reed model,and the most accumulative biogas yield was markedly quadratic related with C/N,C/P ratio,and the C/N,C/P ratio was 27.5 and 163.1,and the most biogas yield was 186.7 L/kg and 138.3 L/kg.
【Fund】: 国家“十一五”科技支撑计划项目(2007BAD89B11);; 湖南省科技厅项目(2009NK3162)
【CateGory Index】: S216.4
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