| 梯度提高进料浓度对鸡粪连续中温发酵产甲烷的影响 |
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| 引用本文： | 乔玮,熊林鹏,毕少杰,任征然,尹冬敏,董仁杰.梯度提高进料浓度对鸡粪连续中温发酵产甲烷的影响[J].农业工程学报,2018,34(9):233-239. |
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| 作者姓名： | 乔玮 熊林鹏 毕少杰 任征然 尹冬敏 董仁杰 |
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| 作者单位： | 中国农业大学工学院;国家能源生物燃气高效制备及综合利用技术研发(实验)中心(中国农业大学) |
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| 基金项目： | 十三五国家重点研发计划课题（2016YFD0501403）；北京市科技计划课题（D1611000016003，D1611000016001）；北京市自然科学基金（6182017） |
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| 摘 要： | 通过长期中温甲烷发酵试验,考察了不同进料总固体质量分数(total solid,TS)(5%、7.5%、10%和15%)和有机负荷(organic loading rate,OLR)(2.5、3.75、5和7.5 g/(L·d))下鸡粪中温甲烷发酵效果,采用批次试验测定了各阶段污泥利用乙酸的产甲烷活性。330 d的连续试验显示,TS由5%增至15%,出料氨氮质量浓度由(2 110±370)mg/L增至(6 890±220)mg/L,挥发性脂肪酸由(360±100)mg/L增至(8 800±500)mg/L,TS产甲烷率由(253±9)m L/g降至(173±22)m L/g。长期采用TS10%和15%的进料,氨氮质量浓度分别达到(6 510±300)和(6 890±220)mg/L,TS产甲烷率分别为(203±13)和(173±22)m L/g,比TS5%的降低了20%和32%。批次试验结果表明,氨氮累积导致微生物利用乙酸产甲烷的能力降低,当氨氮质量浓度达到6 500和7 000 mg/L时,乙酸产甲烷活性分别降低59%和98%。鸡粪中温甲烷发酵能够在进料TS为5%和7.5%下稳定运行;进料TS达到10%,甲烷发酵水解、酸化和产甲烷将受到抑制,造成有机物转化率的降低。该研究建议鸡粪中温甲烷发酵的TS不超过10%。
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| 关 键 词： | 粪 发酵 甲烷 进料浓度 中温 |
| 收稿时间： | 2017/12/12 0:00:00 |
| 修稿时间： | 2018/4/3 0:00:00 |
Effect of gradually raising feeding total solid on methane production during continuous mesophilic fermentation of chicken manures |
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| Qiao Wei,Xiong Linpeng,Bi Shaojie,Ren Zhengran,Yin Dongmin and Dong Renjie.Effect of gradually raising feeding total solid on methane production during continuous mesophilic fermentation of chicken manures[J].Transactions of the Chinese Society of Agricultural Engineering,2018,34(9):233-239. |
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| Authors: | Qiao Wei Xiong Linpeng Bi Shaojie Ren Zhengran Yin Dongmin and Dong Renjie |
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| Institution: | 1. College of Engineering, China Agricultural University, Beijing 100083, China; 2. R&D Center for Efficient Production and Comprehensive Utilization of Biobased Gaseous Fuels, Energy Authority, National Development and Reform Committee (BGFeuls), Beijing 100083, China,1. College of Engineering, China Agricultural University, Beijing 100083, China; 2. R&D Center for Efficient Production and Comprehensive Utilization of Biobased Gaseous Fuels, Energy Authority, National Development and Reform Committee (BGFeuls), Beijing 100083, China,1. College of Engineering, China Agricultural University, Beijing 100083, China; 2. R&D Center for Efficient Production and Comprehensive Utilization of Biobased Gaseous Fuels, Energy Authority, National Development and Reform Committee (BGFeuls), Beijing ,1. College of Engineering, China Agricultural University, Beijing 100083, China; 2. R&D Center for Efficient Production and Comprehensive Utilization of Biobased Gaseous Fuels, Energy Authority, National Development and Reform Committee (BGFeuls), Beijing ,1. College of Engineering, China Agricultural University, Beijing 100083, China; 2. R&D Center for Efficient Production and Comprehensive Utilization of Biobased Gaseous Fuels, Energy Authority, National Development and Reform Committee (BGFeuls), Beijing and 1. College of Engineering, China Agricultural University, Beijing 100083, China; 2. R&D Center for Efficient Production and Comprehensive Utilization of Biobased Gaseous Fuels, Energy Authority, National Development and Reform Committee (BGFeuls), Beijing |
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| Abstract: | |
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| Keywords: | manures fermentation methane feeding total solid mesophilic |
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