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A quantitative estimate of potential aluminium recovery from incineration bottom ashes

Author

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  • Grosso, Mario
  • Biganzoli, Laura
  • Rigamonti, Lucia

Abstract

The recovery of ferrous and non ferrous metals from the bottom ashes is a common practice in the most part of Europe, both for the environmental advantages of their recycle and to avoid problems of swelling and expansion that metals can cause when bottom ashes are reused in concrete production or in road construction. This paper focuses on metal recovery from bottom ashes produced in Municipal Solid Waste (MSW) incinerators, with a particular focus on aluminium. A forecasting model was developed in order to evaluate the quantity of aluminium scraps recoverable from the bottom ashes. The model was applied to the Italian situation but its validity can be extended to other countries. Focusing on Italy, by applying conventional technologies for the separation of non-ferrous metals, the amount of aluminium potentially recoverable from bottom ashes is estimated in the range from 16,500 to 21,000tonnes at the year 2015, and from 19,000 to 28,500tonnes at 2020.

Suggested Citation

  • Grosso, Mario & Biganzoli, Laura & Rigamonti, Lucia, 2011. "A quantitative estimate of potential aluminium recovery from incineration bottom ashes," Resources, Conservation & Recycling, Elsevier, vol. 55(12), pages 1178-1184.
    • Handle: RePEc:eee:recore:v:55:y:2011:i:12:p:1178-1184
    DOI: 10.1016/j.resconrec.2011.08.001
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