Characterization of an old municipal landfill (Grindsted, Denmark) as a groundwater pollution source: Landfill history and leachate compostition

Peter Kjeldsen, Aase Grundtvig, Pia Winther, Jens Strodl Andersen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Investigations into the pollution of groundwater from old landfill have, in most cases, focused on delineating the pollution plume rather than on the landfill as a source of groundwater pollution. Landfills often cover large areas and spatial variations in leachate composition within the landfill may have great impact on the location of the main pollution plume in the downstream aquifer. The history of the Grindsted Landfill in Denmark was investigated using aerial photographs and interviews. On the basis of the aerial photographs, waste volume and age of the different areas of the landfill were evaluated. A pronounced variability in leachate composition was observed in the 31 leachate wells installed through the waste. The spatial variability was analysed by statistical methods, and a semivariogram model was able to describe the variability both on small and large scale. The spatial variations in leachate composition are very important for locating the main source of the groundwater pollution and for selection of cost-effective remedial action activities.
    Original languageEnglish
    JournalWaste Management and Research
    Volume16
    Issue number1
    Pages (from-to)3-13
    ISSN0734-242X
    DOIs
    Publication statusPublished - Feb 1998

    Keywords

    • landfill
    • characterization
    • leachate sampling
    • leachate composition
    • spatial statistics
    • Denmark

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