According to the waste management hierarchy it is most favorable to prevent the generation of waste, followed by its re-use. If both measures are not applicable, the generated waste should undergo recycling processes. As many waste plastics are still difficult to recycle, plastics utilization in the hot metal production and in the cement industry represent a suitable way for the management of plastic waste according to the waste management hierarchy. The waste plastics utilized have to meet certain standards, and different limits according to process emissions have to be fulfilled. In the present paper the utilization of waste plastics in both processes is compared. Thereby, special focus is given to the flows of Cadmium and Mercury induced by the waste plastics.
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