Treatment of residues from solid waste incineration

  • Skov, Bent Henning (Project Participant)
  • Jensen, Dorthe Lærke (Project Participant)
  • Lundtorp, Kasper (Project Participant)
  • Sørensen, Mette Abildgaard (Project Participant)
  • Duhring, Pernille Bayard (Project Participant)
  • Christensen, Thomas Højlund (Project Manager)

Project Details


Incineration is the most common waste treatment and disposal method for municipal and industrial solid waste in Denmark. Solid residues are generated in terms of bottom ash and APC (air pollution control) solids (fly ashes and acid flue gas cleaning products). The bottom ashes are primarily used for construction purposes while the APC solids are landfilled or temporarily stored until permanent landfills are approved. All the residues from incineration should be utilized or landfilled by sustainable methods without adverse impacts on the environment. One of the main environmental concerns is the short term (few years) as well as long term (centuries) leaching of salts and heavy metals from construction material containing residues or from waste residue landfills

The aim of this project is to develop technologies for bottom ashes as well as for APC products based on combinations of washing and chemical stabilization. Currently focus is on APC solids and washing followed by stabilization by ironoxides. This leads to a refuction in the leaching of salts by partial removal and a permanent binding of heavy metals in the treated solids. Utilization by incorporation into ceramics is currently being considered.
Effective start/end date01/12/199730/08/2000


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