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The Assessment of Stabilization of Open-dumping Landfill Leachate - A Case Study of Noeun Landfill -

  • Journal of Environmental Impact Assessment
  • Abbr : J EIA
  • 2004, 13(3), pp.115-124
  • Publisher : Korean Society Of Environmental Impact Assessment
  • Research Area : Engineering > Environmental Engineering

Hong Sangpyo 1

1청주대학교

Accredited

ABSTRACT

To utilize a closed municipal solid waste landfill site in environmentally secure conditions, it is necessary to verify the stabilization level of landfill leachate. To assess leachate stabilization of an open-dumping municipal solid waste landfill (Noeun Landfill) which is located at the upper drainage basin of Namhan River which flows into Lake Paldang utilized for Seoul Metropolitan water supplies, the surrounding characteristics of the landfill site was surveyed. After then, leachate, groundwater and soil samples from this landfill were chemically analyzed, and the analysis results were evaluated by “The Criteria of Landfill Waste Stabilization(CLWS)”, “Discharge Criteria of Landfill Leachate”, “The Criteria of Domestic Use in Groundwater Quality”, and “Soil Contamination Criteria” promulgated by Korean Ministry of Environment. The closed open-dumping landfill was equipped with the final soil cover, 3 groundwater monitoring wells and poor landfill gas extraction devices for the post-closure management of the landfill. BOD/CODcr ratios in leachate were less than or slightly higher than 1/10. This results seemed to imply that the leachate stabilization level of this landfill based on the CLWS was almost completed. Qualities of groundwater sampled from monitoring wells located at outside of landfill were adequate for “The Criteria of Domestic Use in Groundwater Quality”.Finally, concentrations of soil contaminants that were likely to be influenced by this landfill site were adequate to “Soil Contamination Criteria”.

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