Optimizing Non-Ferrous Metal Value from MSWI Bottom Ashes

  • Berkhout S
  • Oudenhoven B
  • Rem P
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Abstract

The bottom ashes resulted annually from the incineration of municipal solid waste in Europe contain about 400,000 tonnes of metallic aluminium and 200,000 tonnes of heavy non-ferrous metals, such as copper and zinc. Efficient recovery of this non-ferrous metal resource requires state-of-the-art separation technologies and a continuous feedback of laboratory analyses of the metal products and the depleted bottom ash to the operators of the bottom ash treatment plants. A methodology is presented for the optimization of the production of non-ferrous metal value from Municipal Solid Waste Incinerator bottom ash. Results for an incineration plant in the Netherlands show that efficient recycling can have a significant impact on value recovery as well as on non-ferrous metal recycling rates, producing up to 8% more revenue and 25% more metals from the ash.

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Berkhout, S. P. M., Oudenhoven, B. P. M., & Rem, P. C. (2011). Optimizing Non-Ferrous Metal Value from MSWI Bottom Ashes. Journal of Environmental Protection, 02(05), 564–570. https://doi.org/10.4236/jep.2011.25065

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