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Prediction of Leachate Level in Kimpo Metropolitan Landfill Site by Total Water Balance

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Abstract

Kimpo metropolitan landfill has received various kinds of wastessince January 1992. The leachate level was measured to be 10.3 m in May 1995 and the level increased to 12.2 m in August 1996. Therefore, to prove the reason for the increasing leachate level, we calibrated hydraulic conductivity of each waste andintermediate layer using the HELP (Hydrologic Evaluation ofLandfill Performance) model. The leachate generation data measured from February 1993 to October 1995 was used in the model calibration. As a result of a model calibration, we obtained anaverage infiltration ratio and used this in analysis of the total water balance to predict elevation of leachate level. Main causes of the elevation of the leachate level were the high water content of the waste and the degradation of the leachate-drainage system caused by the subsidence of a naturalbarrier layer.

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Authors and Affiliations

  1. Department of Civil Engineering, Korea Advanced Institute of Science and Technology, Taejon, 305–701, Korea

    Nam Yung Dho, Ja Kong Koo & Seung Rae Lee

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  1. Nam Yung Dho
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  2. Ja Kong Koo
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  3. Seung Rae Lee
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Correspondence to Nam Yung Dho.

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Dho, N.Y., Koo, J.K. & Lee, S.R. Prediction of Leachate Level in Kimpo Metropolitan Landfill Site by Total Water Balance. Environ Monit Assess 73, 207–219 (2002). https://doi.org/10.1023/A:1013142419002

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  • DOI: https://doi.org/10.1023/A:1013142419002

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