This article deals with the identification of the settings of a non-ferrous metal separator that enables the machine to perform a high separation while maintaining a given quality of the non-ferrous metal separated fraction. The approach consists in running an experimental research testing an eddy current separator (ECS) with an eccentric pole using the 2k-1 design approach, with k being the number of variables involved in the experiment. The design of experiments approach and the statistical analysis of the collected data used in order to know variables interaction, main effects and to obtain regression models for both separation efficiency and quality of the separated fraction. The proposed approach applied to the urban solid waste treatment plant of Parma (Italy), shows a significant improvement in both quantity and quality of the non-ferrous metal separated fraction.
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