| 半连续式厨余和牛粪混合厌氧消化 |
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| 引用本文： | 李荣平,李秀金.半连续式厨余和牛粪混合厌氧消化[J].北京化工大学学报(自然科学版),2007,34(Z2):8-11. |
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| 作者姓名： | 李荣平 李秀金 |
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| 作者单位： | 北京化工大学化学工程学院， 北京100029 |
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| 摘 要： | 在中温35℃下，通过半连续运行方式，对牛粪、厨余的单独消化以及厨余和牛粪的混合消化进行了对比研究。试验结果表明，由于混合消化提供了较佳的水解酸化pH值范围，提高了缓冲能力，改善了碳氮比，因此其产气性能明显好于单独消化。其中，厨余和牛粪中的挥发性固体（VS）质量比为3∶1时混合消化效果最佳，甲烷产率为0.23L/(gVS),分别是牛粪和厨余单独消化时的38和16倍,VS去除率高达71.9%。这说明，混合消化是提高厌氧消化性能的有效途径之一。
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| 关 键 词： | 厨余 牛粪 生物气 混合厌氧消化 半连续式 厨余 牛粪 混合厌氧消化 mode manure cattle kitchen waste 消化性能 去除率 甲烷产率 效果最佳 质量比 挥发性固体 产气性能 碳氮比 改善 缓冲能力 范围 水解酸化 |
| 修稿时间： | 2007年9月29日 |
Anaerobic co-digestion of kitchen waste with cattle manure in semi-continuous mode |
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| LI RongPing,LI XiuJin.Anaerobic co-digestion of kitchen waste with cattle manure in semi-continuous mode[J].Journal of Beijing University of Chemical Technology,2007,34(Z2):8-11. |
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| Authors: | LI RongPing LI XiuJin |
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| Institution: | College of Chemical Engineering, Beijing University of Chemical Technology， Beijing 100029， China |
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| Abstract: | A comparative study of the single digestion of kitchen waste, cattle manure and co-digestion of the two wastes was conducted in semi continuous mode at the mesophilic temperature of 35℃. The results showed that co digestion was significantly superior to single digestion, due to the optimal pH range for hydrolys is and acidification, stronger buffer capacity and well balanced C/N ratio duri ng the co digestion process. When the ratio of kitchen waste to manure was 3∶1, a methane yield of 0.23L CH4/(gVS) was achieved, which was 3:8 and 1:6 times that obtained with cattle manure and kitchen waste, respectively. The observed VS removal efficiency of 71.9% indicates that co digestion is an effective way to enhance the digestion performance. |
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| Keywords: | kitchen waste cattle manure biogas anaerobic co-digestion |
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