A comparative analysis of leachate quality from municipal solid waste landfills: case studies from Poland and the Czech Republic

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This study presents a comprehensive analysis of quality of leachate generated in selected municipal solid waste (MSW) landfills located in Poland and the Czech Republic, differing in terms of technical management and site conditions. On the basis of a long-term monitoring period, the leachate samples were characterized regarding their basic physico-chemical parameters and variations in time. Moreover, the leachate contamination potential was assessed using leachate pollution index (LPI). The results demonstrated that the leachate characteristics can vary widely depending on the sampling location and the landfill age. The effect of landfill age was indicated by the relationships between Biochemical Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) parameters. Statistical analyses were also performed in order to track existing relationships between monitored parameters of leachate quality. This study proved that it is justified to evaluate physico-chemical characteristics of landfill leachate during different seasons in a monitoring period to assess reliably their possible impact on the environment. Finally, the suggestions and recommendations were delineated regarding the possible treatment of leachate and their management in aspect of environmental protection needs.

9th International Congress on Environmental Geotechnics (ICEG2023)

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