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Optimizing Non-Ferrous Metal Value from MSWI Bottom Ashes

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DOI: 10.4236/jep.2011.25065    6,127 Downloads   11,115 Views   Citations

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.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

S. Berkhout, B. Oudenhoven and P. Rem, "Optimizing Non-Ferrous Metal Value from MSWI Bottom Ashes," Journal of Environmental Protection, Vol. 2 No. 5, 2011, pp. 564-570. doi: 10.4236/jep.2011.25065.

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