| 生物反应器填埋场系统中有机垃圾降解特性研究 |
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| 引用本文： | 何若,沈东升,许恒韬,朱荫湄.生物反应器填埋场系统中有机垃圾降解特性研究[J].农业工程学报,2006,22(1):134-137. |
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| 作者姓名： | 何若 沈东升 许恒韬 朱荫湄 |
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| 作者单位： | 浙江大学环境工程系,杭州,310029 |
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| 基金项目： | 中国科学院资助项目;浙江省自然科学基金 |
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| 摘 要： | 针对渗滤液回灌型生物反应器填埋场中存在着有机酸积累的问题，试验将产甲烷反应器作为渗滤液回灌前的预处理设施引入生物反应器填埋场，研究了其系统中有机垃圾的降解和产气规律。结果表明，在本模拟试验条件下，有机垃圾在填埋场、产甲烷反应器和生物反应器填埋场系统的总产气量分别为62.1、456和518.1 L，其中产甲烷反应器产气量占生物反应器填埋场系统产气量的88％以上。在产甲烷反应器中产气速率与有机物去除率成正比，回归系数为0.4614 L/g COD。基于生物反应器填埋场系统中有机物降解的特征，建立了其产气动力学模型。该模型可用来初步估算相关生物反应器填埋场系统中填埋垃圾稳定化所需时间及产气量，为系统填埋气的能源化利用提供理论依据。
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| 关 键 词： | 生活垃圾 生物反应器填埋场 降解 动力学模型 |
| 文章编号： | 1002-6819(2006)01-0134-04 |
| 收稿时间： | 2/1/2005 12:00:00 AM |
| 修稿时间： | 2005-11-03 |
Characteristics of organic refuse decomposition in the bioreactor landfill system |
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| He Ruo,Shen Dongsheng,Xu Hengtao and Zhu Yinmei.Characteristics of organic refuse decomposition in the bioreactor landfill system[J].Transactions of the Chinese Society of Agricultural Engineering,2006,22(1):134-137. |
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| Authors: | He Ruo Shen Dongsheng Xu Hengtao and Zhu Yinmei |
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| Institution: | Department of Environmental Engineering, Z heji ang University, Hangzhou 310029, China |
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| Abstract: | Based on the problem of organic acid accumulation in bioreactor landfills with leachate recycle, a methanogenic reactor used as the pretreatment establishment before leachate recycle was introduced into the bioreactor landfill in the study. The principle of the organic refuse decomposition and gas production in the bioreactor landfill system was investigated. The results showed that the total gas production volumes for the landfill reactor, the methanogenic reactor and the bioreactor landfill system were 62.1 L, 456 L and 518.1 L, respectively, under the experimental condition. The gas generated chiefly from the methanogenic reactor where the gas production volume accounted for over 88% of the bioreactor landfill system. The gas production rate was directly proportional to organic removal rate in the methanogenic reactor, and the regression coefficient was 0.4614 L CH4 per gram COD degraded. The kinetic model of gas production was developed based on the characteristics of organic mass decomposition in the bioreactor landfill system. The model can be used to presumedly calculate the time for the stabilization of landfilled refuse and the gas production volume in the relative bioreactor landfill system. And it also provided the theoretical basis for the utilization of landfill gas energy sources. |
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| Keywords: | municipal solid waste bioreactor landfill degradation kinetics model |
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