| NaOH与超声联合预处理玉米秸秆实验条件优化研究 |
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| 引用本文： | 王雪,苏小红,陆佳,刘泽,刘伟.NaOH与超声联合预处理玉米秸秆实验条件优化研究[J].中国沼气,2022(1):24-32. |
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| 作者姓名： | 王雪 苏小红 陆佳 刘泽 刘伟 |
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| 作者单位： | 黑龙江省科学院;黑龙江省能源环境研究院 |
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| 基金项目： | 国家重点研发计划(2018YFD1100702-1);黑龙江省自然基金项目(LH2019B031)。 |
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| 摘 要： | 试验选用超声与NaOH法对玉米秸秆进行联合预处理,通过分析预处理后秸秆还原糖含量、组分变化量、厌氧发酵产气量等参数,对预处理的条件进行优化.试验结果表明:3％ NaOH浓度,浸泡时间为48 h,超声功率为80 W,超声温度为50℃的预处理条件下,还原糖含量较高,为0.0947 g·g-1.联合试验组产气量比单一超声处理...
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| 关 键 词： | 玉米秸秆 NaOH 超声 预处理 厌氧发酵 |
Optimization of Experimental Conditions for Combined Pretreatment of Corn Stover with NaOH and Ultrasonic |
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| WANG Xue,SU Xiao-hong,LU Jia,LIU Ze,LIU Wei.Optimization of Experimental Conditions for Combined Pretreatment of Corn Stover with NaOH and Ultrasonic[J].China Biogas,2022(1):24-32. |
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| Authors: | WANG Xue SU Xiao-hong LU Jia LIU Ze LIU Wei |
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| Institution: | (Heilongjiang Academy of Sciences, Harbin 150001, China;Heilongjiang Institute of Energy and Environmental Research Institute of Heilongjiang Province, Harbin 150022, China) |
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| Abstract: | The ultrasonic and NaOH methods were used to pretreat corn stalks,and the pretreatment conditions were optimized by analyzing the reducing sugar content,component changes and anaerobic fermentation gas production after pretreatment.The experimental results showed that under the pretreatment conditions of 3%NaOH concentration,soaking time 48 h,ultrasonic power 80 W and ultrasonic temperature 50℃,the content of reducing sugar was higher,which was 0.0947 g·g-1.The gas production of the combined test group was 23%higher than that of the single ultrasonic treatment group,7%higher than that of the single NaOH pretreatment group,and 79%higher than that of the untreated group.Before and after pretreatment,lignin and hemicellulose degradation of corn stalks were the most,while cellulose content increased significantly. |
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| Keywords: | corn straw NaOH ultrasound pretreatment anaerobic fermentation |
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