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Non-Destructive Characterization of Mechanically Processed Waste Printed Circuit Boards: X-ray Fluorescence Spectroscopy and Prompt Gamma Activation Analysis

1
Ecole Nationale Supérieure de Géologie, GeoRessources UMR 7359 CNRS, University of Lorraine, 2 Rue du Doyen Marcel Roubault, BP 10162, 54505 Vandoeuvre-lès-Nancy, France
2
Waste Science & Technology, Luleå University of Technology, SE 971 87 Luleå, Sweden
3
Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, D-85747 Garching, Germany
*
Author to whom correspondence should be addressed.
J. Compos. Sci. 2019, 3(2), 54; https://doi.org/10.3390/jcs3020054
Received: 24 April 2019 / Revised: 22 May 2019 / Accepted: 27 May 2019 / Published: 1 June 2019
(This article belongs to the Special Issue Non-Destructive Characterization of Composite Materials)
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Abstract

This work aimed to characterize the deportment/concentration and liberation/association of the metals and light elements within mechanically processed waste printed circuit boards (PCBs) that hold the complex and heterogeneous structure and distribution of different material components. Waste PCBs passed through a series of mechanical processing (i.e., comminution and sieving) for metal recovery and were then characterized without further destroying the particles in order to capture their heterogeneity. The characterizations were performed in a laboratory and large-scale neutron facility. The results obtained with a portable X-ray fluorescence spectroscopy and prompt gamma activation analysis were compared and confirmed the good agreement and complementarities in general. The advantages and disadvantages of the two different methods were identified and discussed in this paper, in relation to their application to the analysis of mechanically processed PCB particles. View Full-Text
Keywords: deportment/concentration; metal; plastic; liberation/association; elemental analysis; neutron deportment/concentration; metal; plastic; liberation/association; elemental analysis; neutron
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Otsuki, A.; Gonçalves, P.P.; Stieghorst, C.; Révay, Z. Non-Destructive Characterization of Mechanically Processed Waste Printed Circuit Boards: X-ray Fluorescence Spectroscopy and Prompt Gamma Activation Analysis. J. Compos. Sci. 2019, 3, 54.

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J. Compos. Sci. EISSN 2504-477X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
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