Landfill clean-up

The services provided by Purwatt range from the search for a suitable site, geological and hydrogeological investigations, draft and detailed planning to the construction of turnkey landfill facilities. Operation of a landfill can of course also be managed by companies of the Group. We are able to offer complete solutions that relieve those responsible for disposal services of all concerns and guarantee professional management.

Sustainable remediation of landfills

A sustainable remediation of contaminated sites can be achieved only through solutions that bring about lasting improvements for people and the environment. An existing problem site is finally rehabilitated only after the actual source of the hazard has been removed. Landfill site reclamation is undertaken to clean up previously contaminated sites, to recover new areas for infrastructure or residential development or to create new landfill capacity in an existing landfill.

Purwatt provides the solution:

  • preliminary exploration of the landfill
  • feasibility study and safety concept
  • logistics, excavation, transport
  • opening of the landfill and mining of material
  • separation, chemical characterisation
  • treatment, landfilling of non-hazardous residual material
  • all-in packages including financing plans are Purwatt’s special area of expertise!

    Innovative components and sub-systems


    For stabilisation of old landfills prior to excavation

    Before an old landfill can be excavated (e.g. for site reclamation, rehabilitation or repair of leachate pipes), the material buried in the landfill has to be treated. This is where the Wasteaerobic system comes in. This system

    • converts the landfill from anaerobic to aerobic conditions
    • prevents odour formation during excavation work
    • regulates and reduces water flows
    • reduces the amount of methane that is released to the air from the landfill.

    Use in temporary waste storage

    Large municipalities as well as smaller communities are frequently faced by the need to place waste in intermediate storage. Temporary use of the Wasteaerobic system prevents the development of the odour nuisance typically associated with the interim storage or transfer of waste.
    Like in large-scale operations, the Wasteaerobic system prevents the generation of obnoxious odours also in small facilities by injecting into the waste warm, high-oxygen air that has been enriched with bacteria that promote decomposition.