| 老垃圾填埋场渗滤液回灌工艺参数研究 |
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| 引用本文： | 冯向明,蒋建国,张唱,黄云峰. 老垃圾填埋场渗滤液回灌工艺参数研究[J]. 工业安全与环保, 2009, 35(1) |
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| 作者姓名： | 冯向明 蒋建国 张唱 黄云峰 |
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| 作者单位： | 深圳市下坪固体废弃物填埋场,广东深圳,518001;清华大学环境科学与工程系,北京,100084 |
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| 基金项目： | 科技部国际科技重大合作项目 |
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| 摘 要： | 根据理论分析,通过回灌能够实现对老垃圾填埋场所产生渗滤液的场内处理,改善渗滤液水质,同时能加速老填埋场的稳定化进程.以深圳市10座老垃圾填埋场为研究对象,提出渗滤液回灌工艺及其参数.回灌方式以水平渗沟为主,设置聚乙烯罐调节水量.渗滤液回灌加速了填埋气体产生速率,降低了有效应力,可能引起垃圾体边坡失稳.较大的渗滤液回灌量(1.6%)导致较低的垃圾边坡安全系数(1.96).确定满足加速垃圾稳定化和填埋场稳定性的最佳回灌量是填埋场渗滤液回灌大规模应用需要解决的重要问题.
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| 关 键 词： | 老垃圾填埋场 渗滤液 回灌 边坡 稳定性 |
Method of Leachate Recirculation of Old MSW Landfills |
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| FENG Xiang-ming,JIANG Jian-guo,ZHANG Chang,HUANG Yun-feng. Method of Leachate Recirculation of Old MSW Landfills[J]. Industrial Safety and Dust Control, 2009, 35(1) |
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| Authors: | FENG Xiang-ming JIANG Jian-guo ZHANG Chang HUANG Yun-feng |
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| Affiliation: | 1.Xiaping Lunicipal Solid Waste Landfill Shenzhen;Guangdong 518001 |
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| Abstract: | The theoretic analysis shows that recycling can treat the leachate generated in an old landfill in-situ,improve the quality of the leachate and accelerate the stabilization of the MSW.The process of leachate recirculation is raised and parameters are calculated for ten old landfills in Shenzhen.The primary means of recirculation is to use horizontal trenches,while polyethylene tanks are set to adjust the quantity of leachate.Leachate recirculation not only accelerates the gas generation rates,but also reduc... |
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| Keywords: | old landfill leachate recirculation slope stability |
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