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Survey of diverse hydrometallurgy techniques for recovering and extracting valuable metals from PCB waste: an overview

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Abstract

As technology advances and auxiliary electrical and electronic equipment expands, waste printed circuit boards are among the quickest growing sources of waste. Throughout the world, the exploitation of waste printed circuit boards has become one of the lucrative commercial enterprises in the recycling production company. Additionally, it can also cause a variety of effects on humans and the environment in terms of metal ions. In order to facilitate the recovery and recycling of printed circuit board, several innovative techniques have been developed, including pyrometallurgy, hydrometallurgy, and biometallurgy. It is possible to recover and recycle precious metals through the hydrometallurgy process simply and conveniently. Economic efficiency, environmental friendliness, and durability make this technology auspicious. On the other hand, there are few comprehensive studies on the hydrometallurgy and chemical processing of waste printed circuit board. As a result, in this work, a mini-review was performed in order to assess different chemical leaching methods, optimize parameters, and examine future investigation pathways.

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Data Availability

Data available with the paper: Data availability is not applicable to this review article as no new data were created or analysed in this study.

Abbreviations

DMA:

Dimethylacetamide

DMF:

Dimethylformamide

DMF:

Dimethylformamide

DMSO:

Dimethyl sulfoxide

DTPA:

Diethylenetriaminepentaacetic acid

ECS:

Eddy Current Separator

E-waste:

Electronic Waste

H2SO4 :

Sulphuric acid

HCl:

Hydrochloric acid

HCN:

Hydrogen cyanide

HNO3 :

Nitric acid

NMP:

N-methyl-2-pyrrolidone

NTA:

Nitrilotriacetic acid

PCBs:

Printed Circuit Board

PM:

Precious metal

PNDEs:

Polybrominated diphenyl ethers

PPM:

Parts per million

REE:

Rare earth elements

SCF:

Supercritical fluid extraction

WEEE:

Electrical and electronic equipment

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Acknowledgements

This work was supported by the Ministry of Science and Higher Education of the Russian Federation, South Ural State University, Chelyabinsk, Russian Federation.

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  1. South Ural State University, Chelyabinsk, 454080, Russian Federation

    S. Sudarsan, M. Anandkumar & E. A. Trofimov

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  1. S. Sudarsan
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  2. M. Anandkumar
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  3. E. A. Trofimov
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Contributions

Shanmugavel Sudarsan: Conceptualization, Methodology, Writing- Original draft preparation, Investigation. Mariappan Anandkumar: Reviewing and Editing. E. A. Trofimov: Reviewing and Supervision.

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Correspondence to S. Sudarsan.

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Editorial responsibility: Samareh Mirkia.

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Sudarsan, S., Anandkumar, M. & Trofimov, E.A. Survey of diverse hydrometallurgy techniques for recovering and extracting valuable metals from PCB waste: an overview. Int. J. Environ. Sci. Technol. (2024). https://doi.org/10.1007/s13762-024-05755-w

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  • DOI: https://doi.org/10.1007/s13762-024-05755-w

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