| 楚莉莉,杨改河,张翠丽,任广鑫,冯永忠.不同温度条件下农作物秸秆产气效率研究[J].干旱地区农业研究,2008,(2):190~193 |
| 不同温度条件下农作物秸秆产气效率研究 |
| The biogas production efficiency of crop straws at different temperature |
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| DOI：10.7606/j.issn.1000-7601.2008.02.37 |
| 中文关键词: 秸秆 厌氧发酵 产气效率 发酵周期 |
| 英文关键词:straw anaerobic fermentation biogas production efficiency fermentation period |
| 基金项目:农业科技成果转化项目(05EFN217100423)； 国家科技支撑计划(2006BAD17B01-01)； 国家自然科学基金(30700482) |
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| 中文摘要: |
| 采用自行设计的可控性恒温发酵装置,选取了小麦秸秆、水稻秸秆和玉米秸秆3种单一原料为发酵原料,以5℃为一个步长,设定了7个恒定温度10℃、15℃、20℃、25℃、30℃、35℃、40℃下的发酵方案;试验结果表明7个温度梯度下,3种原料均能正常发酵产生沼气,原料产气率随温度上升而上升;40℃下的产气效率最好(小麦秸秆的峰值为2 520.0 mL,干物质产气率为187.1 mL/g,水稻秸秆的峰值为2 100.0 mL,干物质产气率195.0 mL/g,玉米秸秆的峰值为2 395.0 mL,干物质产气率为228.5 mL/g),10℃下产气效率最差(小麦秸秆的峰值为377.5mL,干物质产气率为20.1 mL/g,水稻秸秆的峰值为305.0 mL,干物质产气率17.2 mL/g,为玉米秸秆的峰值为252.5 mL,干物质产气率为15.0 mL/g)。 |
| 英文摘要: |
| The research adapted controllable constant-temperature fermented equipment designed by ourselves,and selected wheat straw,rice straw and corn straw for fermented materials,chose 5℃ as a step-length and did the study of biogas fermentation at the temperature of 10℃,15℃,20℃,25℃,30℃,35℃ and 40℃.The results showed that 3 kinds of raw materials can all produce biogas normally at 7 temperature grades,the biogas production efficiency increased as the temperature increased.The biogas production efficiency was the best at 40℃(the max value of wheat straw biogas production was 2 520.0 mL,the rate of TS was 187.1 mL/g;the max value of rice straw biogas production was 21 000.0 mL,the rate of TS was 195.0 mL/g;the max value of corn straw biogas production was 2 395.0 mL,the rate of TS was 228.5 mL/g;),while the biogas production efficiency was the worst at 10℃(the max value of wheat straw biogas production was 377.5 mL,the rate of TS was 20.1 mL/g;the max value of rice straw biogas production was 305.0 mL,the rate of TS was 17.2 mL/g;the max value of corn straw biogas production was 252.5 mL,the rate of TS was 15.0 mL/g;) |
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