| 一株纤维素降解菌的筛选及其在沼气应用中的研究 |
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| 引用本文： | 李世密,寇巍,张晓健,卞永存,张大雷.一株纤维素降解菌的筛选及其在沼气应用中的研究[J].可再生能源,2009,27(2). |
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| 作者姓名： | 李世密 寇巍 张晓健 卞永存 张大雷 |
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| 作者单位： | 1. 辽宁省能源研究所,辽宁,营口,115000
2. 沈阳航空工业学院,清洁能源与环境工程研究所,辽宁,沈阳,110136 |
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| 摘 要： | 利用实验室保存的细菌、真菌和从牛粪、猪粪中分离出来的多株菌株,对秸秆纤维素进行降解试验,从而筛选出了能够降解秸秆纤维素(降解率为43.75%)的优势菌株.用几株降解效果较理想的菌株处理秸秆,对处理后的秸秆进行沼气发酵,通过高效气相色谱仪对沼气成分进行分析,发现从牛粪中筛选出的N2菌株效果较好,发酵2周后,其产气中甲烷含量为62.48%(体积分数,下同),二氧化碳含量为31.83%,氮气含量为2.11%.通过生理生化鉴定,初步鉴定N2菌株为枯草杆菌(Bacillus subtilis).
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| 关 键 词： | 秸秆降解 沼气发酵 微生物 |
The screening of cellulose-degrading bacteria and its applications in biogas research |
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| LI Shi-mi,KOU Wei,ZHANG Xiao-jian,BIAN Yong-cun,ZHANG Da-lei.The screening of cellulose-degrading bacteria and its applications in biogas research[J].Renewable Energy,2009,27(2). |
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| Authors: | LI Shi-mi KOU Wei ZHANG Xiao-jian BIAN Yong-cun ZHANG Da-lei |
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| Affiliation: | 1.Liaoning Institute of Energy Resource;Yingkou 115000;China;2.Institute of Clean Energy and Environmental Engineering;Shenyang Institute of Aeronautical Engineering;Shenyang 110136;China |
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| Abstract: | The strains from the laboratory preservation,which are strains of bacteria,fungi and isolated strains from the cow,pig dung,were used for the straw cellulose degradation experiments,in order to select the strain with cellulose degradation capacity that can degradation 43.75% cellulose of the straw.Several better strains from the selection were used to treat the stalk,and then have the anaerobic fermentation for the treated stalk,through the gas chromatography analysis on the biogas composition,it is found t... |
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| Keywords: | straw degradation methane gas fermentation microbe |
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