Life Cycle Assessment of the Bio-Hydrometallurgical Process of Recycling Copper from Printed Circuit Boards Scraps

Cheng Long Zhang; Jing Wei Wang; Jian Feng Bai; Wen Jie Wu

doi:10.4028/www.scientific.net/AMR.156-157.929

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 156-157Life Cycle Assessment of the...

Life Cycle Assessment of the Bio-Hydrometallurgical Process of Recycling Copper from Printed Circuit Boards Scraps

Abstract:

Recently, a few studies have been undertaken for the extracting of metallic copper from electronic scrap/printed circuit boards by bioleaching - solvent extraction-electrowinning. Results of the present investigation indicate that bioleaching-solvent extraction-electrowinning could be a new cleaner hydrometallurgy route for recovery copper from the PCBs.The life cycle assessment method was used to investigate the environmental impacts of the new biohydrometallurgical process of production of metallic copper. The energy consumption，greenhouse effect，acidification in the new processes is studied and compared. The results indicate that the environmental impacts of bioleaching - solvent extraction-electrowinning technology is less than the conventional mechanical-pyrometallurgical processes and pyrometallurgical processes.

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Advanced Manufacturing Technology, ICAMMP 2010

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Periodical:

Advanced Materials Research (Volumes 156-157)

Pages:

929-932

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.156-157.929

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Online since:

October 2010

Authors:

Cheng Long Zhang, Jing Wei Wang, Jian Feng Bai, Wen Jie Wu

Keywords:

Bioleaching, Copper (Cu), Environmental Impact (EI), LCA, Printed Circuit Boards Scrap

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