Treatment of residues from solid waste incineration

  • Christensen, Thomas Højlund (Project Manager)
  • Jensen, Dorthe Lærke (Project Participant)
  • Sørensen, Mette Abildgaard (Project Participant)
  • Lundtorp, Kasper (Project Participant)
  • Duhring, Pernille Bayard (Project Participant)
  • Skov, Bent Henning (Project Participant)
  • Mogensen, Erhardt (Project Participant)
  • Stipp, Susan (Project Participant)
  • Bender Koch, Christian (Project Participant)
  • Bordia, Raj (Project Participant)
  • Benjamin, Mark (Project Participant)

Project Details

Description

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 resifues 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 reduction in the leaching of salts by partial removal and a permanent binding of heavy metals in the treated solids. Extensive laboratory studies are being carried out and currently a pilot-plant is being constructed.
StatusFinished
Effective start/end date01/09/199730/08/2000