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Status of electronic waste recycling techniques: a review

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Abstract

The increasing use of electrical and electronic equipment leads to a huge generation of electronic waste (e-waste). It is the fastest growing waste stream in the world. Almost all electrical and electronic equipment contain printed circuit boards as an essential part. Improper handling of these electronic wastes could bring serious risk to human health and the environment. On the other hand, proper handling of this waste requires a sound management strategy for awareness, collection, recycling, and reuse. Nowadays, the effective recycling of this type of waste has been considered as a main challenge for any society. Printed circuit boards (PCBs), which are the base of many electronic industries, are rich in valuable heavy metals and toxic halogenated organic substances. In this review, the composition of different PCBs and their harmful effects are discussed. Various techniques in common use for recycling the most important metals from the metallic fractions of e-waste are illustrated. The recovery of metals from e-waste material after physical separation through pyrometallurgical, hydrometallurgical, or biohydrometallurgical routes is also discussed, along with alternative uses of non-metallic fraction. The data are explained and compared with the current e-waste management efforts done in Egypt. Future perspectives and challenges facing Egypt for proper e-waste recycling are also discussed.

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Authors and Affiliations

  1. Electrochemical Processing Department, Central Metallurgical Research and Development Institute (CMRDI), P.O. Box 87, Helwan, Cairo, 11421, Egypt

    Sabah M. Abdelbasir

  2. Department of Chemistry, Faculty of Science, Ain Shams University, Abbasia, Cairo, 11566, Egypt

    Saad S. M. Hassan, Ayman H. Kamel & Rania Seif El-Nasr

Authors
  1. Sabah M. Abdelbasir
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  2. Saad S. M. Hassan
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  3. Ayman H. Kamel
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  4. Rania Seif El-Nasr
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Correspondence to Sabah M. Abdelbasir.

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Responsible editor: Bingcai Pan

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Abdelbasir, S.M., Hassan, S.S.M., Kamel, A.H. et al. Status of electronic waste recycling techniques: a review. Environ Sci Pollut Res 25, 16533–16547 (2018). https://doi.org/10.1007/s11356-018-2136-6

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  • DOI: https://doi.org/10.1007/s11356-018-2136-6

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