Assessment of remediation efficiency of the old landfill on modelling and monitoring research
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Published:2006
E. Koda, E. Wiencław, T. Kołanka, 2006. "Assessment of remediation efficiency of the old landfill on modelling and monitoring research", 5th ICEG Environmental Geotechnics: Opportunities, Challenges and Responsibilities for Environmental Geotechnics: Proceedings of the ISSMGE’s fifth international congress organized by the Geoenvironmental Research Centre, Cardiff University and held at Cardiff City Hall on 26–30th June 2006, H. R. Thomas
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Abstract
The paper presents the assessment of remedial works efficiency of the old landfill, based on numerical modelling and groundwater monitoring results. The old sanitary landfill was surrounded by the vertical bentonite barrier fulfilled with the leachate drainage and re-circulation system. This landfill has been existing since 1962, and it is to be closed at the end of 2006. Remedial works of the landfill has been conducted since 1998. FEMWATER numerical program was used for the flow and transport solution. The results of the groundwater monitoring were used for verification and tare of the numerical model. The influence of the vertical barrier and the leachate re-circulation system on the groundwater flow shaping on surroundings is analysed. It is observed that after closing of the vertical barrier the pollution concentration has been moving towards groundwater the flow direction.
