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摘要:Landfill leachate is one of the greatest environmental concerns.The major potential environmental impact of landfill leachate is that it can pollute groundwater,surface waters and soils.Among these contaminations,groundwater pollution is probably the most severe environmental impact from landfills.Geomembranes have usually been considered for the utilization in design and construction of landfill liners;however,due to improper construction and management which may lead to leachate leakage,low permeable liners such as clay barriers are being used with synthetic materials.The aim of the present study is to evaluate the effect of nanoclay on permeability and swelling of a compacted Kahrizak landfill clay liner.The results showed that 4% nanoclay significantly reduced permeability(3*10-9 to 7.74*10-11 in neutral,3.66*10-9 to 7.9*10-10 in acidic and 3.25*10-9 to 5.24*10-10 cm/s in alkaline condition).The results satisfied the construction of clay barriers with nanoclay in order to prevent leachate penetration,consequently reduces the operation cost.
会议名称:

International Conference on Environmental Science and Technology(ICEST 2011)

会议时间:

2011-02-26

会议地点:

Singapore

  • 专辑:

    工程科技Ⅰ辑

  • 专题:

    环境科学与资源利用

  • 分类号:

    X703

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