Development of an Integrated Model to Recover Precious Metals from Electronic Scrap - A Novel Strategy for E-Waste Management.

Bhat, Viraja, Prakash Rao, and Yogesh Patil (2012) "Development of an integrated model to recover precious metals from electronic scrap-A novel strategy for e-waste management." Procedia-Social and Behavioral Sciences 37:397-406.

10 Pages Posted: 7 Nov 2014

See all articles by Viraja Bhat

Viraja Bhat

Symbiosis International University - Symbiosis Institute of International Business (SIIB)

Prakash Rao

Symbiosis International University - Symbiosis Institute of International Business (SIIB)

Yogesh Patil

Symbiosis International (Deemed University), Pune, India

Date Written: November 5, 2014

Abstract

The authors in this paper makes an attempt to propose a novel integrated model for the recovery of precious metals (gold - Au and silver - Ag) for the management of e-waste using a combination of hydrometallurgical (chemical) and biometallurgical (low cost biomass) processes. Chemical process involves leaching of gold/silver from electronic scrap using cyanide. The leachate containing gold/silver complex thus obtained is then subjected to biosorption process using low-cost biomass. The model proposed by us will help to strengthen the ‘processing’ part of the functional elements employed for proficient e-waste management. Feasibility study was also conducted to explore the possibility of removal/recovery of silver-cyanide using low-cost biosorbents. Results showed that Eicchornia root biomass and Waste tea powder were efficient biosorbents for leached silver-cyanide from electronic scrap. The concentrated silver-cyanide recovered could further be used as an input material for electroplating industry.

Suggested Citation

Bhat, Viraja and Rao, Prakash and Patil, Yogesh, Development of an Integrated Model to Recover Precious Metals from Electronic Scrap - A Novel Strategy for E-Waste Management. (November 5, 2014). Bhat, Viraja, Prakash Rao, and Yogesh Patil (2012) "Development of an integrated model to recover precious metals from electronic scrap-A novel strategy for e-waste management." Procedia-Social and Behavioral Sciences 37:397-406.. Available at SSRN: https://ssrn.com/abstract=2519617

Viraja Bhat

Symbiosis International University - Symbiosis Institute of International Business (SIIB) ( email )

G. No. 174/1
Taluka - Mulshi
Hinjewadi, Maharasthra 411057
India

Prakash Rao

Symbiosis International University - Symbiosis Institute of International Business (SIIB) ( email )

G. No. 174/1
Taluka - Mulshi
Hinjewadi, Maharasthra 411057
India

Yogesh Patil (Contact Author)

Symbiosis International (Deemed University), Pune, India ( email )

Lavale (Hill top)
Gram: Lavale, Tal: Mulshi, Dist: Pune
Pune, Maharashtra 412115
India

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