| 不同土壤对垃圾沥滤液净化效能研究 |
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| 引用本文： | 赖娟,赵秀兰. 不同土壤对垃圾沥滤液净化效能研究[J]. 环境科学与技术, 2009, 32(1) |
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| 作者姓名： | 赖娟 赵秀兰 |
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| 作者单位： | 西南大学资源环境学院;重庆市农业资源与环境研究重点实验室,重庆,400716;西南大学资源环境学院;重庆市农业资源与环境研究重点实验室,重庆,400716 |
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| 摘 要： | 通过土柱模拟实验比较了不同土壤对垃圾沥滤液中高浓度污染物NH4+-N和COD的去除效率。结果表明不同类型土壤对垃圾沥滤液的处理效果有明显差异。紫色土对沥滤液NH4+-N的去除效率可达到95%以上,COD去除率较低;腐殖土对COD去除率最高,出水NH+4-N含量随pH值的上升迅速下降;与腐殖土相比,黄壤对NH+4-N的去除效果较高,对COD的去除率较低。随进水次数增加,土柱对渗滤液中污染物的去除效率明显降低。
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| 关 键 词： | 渗滤液 NH4+-N COD 土壤类型 |
Purification Potentials of Different Soils to Leachate |
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| LAI Juan,ZHAO Xiu-lan. Purification Potentials of Different Soils to Leachate[J]. Environmental Science and Technology, 2009, 32(1) |
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| Authors: | LAI Juan ZHAO Xiu-lan |
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| Affiliation: | 1.School of Environment;2.Chongqing Key Laboratory of Agricultural Resource and Environment Science;Southwest University;Chongqing 400716;China |
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| Abstract: | A simulated soil column experiment was performed to compare the efficiency of NH4+-N and COD removal from landfill leachate by different soils.Results showed that purple soil removed 95% of NH4+-N from landfill leachate,while the efficiency for removing COD was the lowest.Humus soil had the highest efficiency for COD removal,and the concentration of NH4+-N decreased with the increase of pH of effluent.Yellow soil had higher capacity to remove NH4+-N than that of humus soil,but had lower ability to remove CO... |
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| Keywords: | NH4 -N COD |
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