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Metals extraction processes from electronic waste: constraints and opportunities.
Chakraborty, Shovra Chandra; Zaman, Md Wahad Uz; Hoque, Mozammel; Qamruzzaman, Md; Zaman, Jahid Uz; Hossain, Delowar; Pramanik, Biplob Kumar; Nguyen, Luong Ngoc; Nghiem, Long Duc; Mofijur, Md; Mondal, Md Ibrahim H; Sithi, Jeni Aprazita; Shahriar, Sha Md Shahan; Johir, Md Abu Hasan; Ahmed, Mohammad Boshir.
Affiliation
  • Chakraborty SC; Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi, 6205, Bangladesh.
  • Zaman MWU; Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi, 6205, Bangladesh.
  • Hoque M; Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi, 6205, Bangladesh.
  • Qamruzzaman M; Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi, 6205, Bangladesh.
  • Zaman JU; Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi, 6205, Bangladesh.
  • Hossain D; Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi, 6205, Bangladesh.
  • Pramanik BK; School of Engineering, RMIT University, Melbourne, VIC, 3000, Australia.
  • Nguyen LN; Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, 15, Broadway, Sydney, NSW, 2007, Australia.
  • Nghiem LD; Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, 15, Broadway, Sydney, NSW, 2007, Australia.
  • Mofijur M; Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, 15, Broadway, Sydney, NSW, 2007, Australia.
  • Mondal MIH; Mechanical Engineering Department, Prince Mohammad Bin Fahd University, Al Khobar, 31952, Saudi Arabia.
  • Sithi JA; Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi, 6205, Bangladesh.
  • Shahriar SMS; Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi, 6205, Bangladesh.
  • Johir MAH; Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi, 6205, Bangladesh.
  • Ahmed MB; Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, 15, Broadway, Sydney, NSW, 2007, Australia. Mohammed.Johir@uts.edu.au.
Environ Sci Pollut Res Int ; 29(22): 32651-32669, 2022 May.
Article in En | MEDLINE | ID: mdl-35220520
ABSTRACT
The skyrocketing demand and progressive technology have increased our dependency on electrical and electronic devices. However, the life span of these devices has been shortened because of rapid scientific expansions. Hence, massive volumes of electronic waste (e-waste) is generating day by day. Nevertheless, the ongoing management of e-waste has emerged as a major threat to sustainable economic development worldwide. In general, e-waste contains several toxic substances such as metals, plastics, and refractory oxides. Metals, particularly lead, mercury, nickel, cadmium, and copper along with some valuable metals such as rare earth metals, platinum group elements, alkaline and radioactive metal are very common; which can be extracted before disposing of the e-waste for reuse. In addition, many of these metals are hazardous. Therefore, e-waste management is an essential issue. In this study, we critically have reviewed the existing extraction processes and compared among different processes such as physical, biological, supercritical fluid technologies, pyro and hydrometallurgical, and hybrid methods used for metals extraction from e-waste. The review indicates that although each method has particular merits but hybrid methods are eco-friendlier with extraction efficiency > 90%. This study also provides insight into the technical challenges to the practical realization of metals extraction from e-waste sources.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Waste Management / Electronic Waste Language: En Journal: Environ Sci Pollut Res Int Journal subject: SAUDE AMBIENTAL / TOXICOLOGIA Year: 2022 Document type: Article Affiliation country: Bangladesh
Fulltext
Add to My VHL
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Waste Management / Electronic Waste Language: En Journal: Environ Sci Pollut Res Int Journal subject: SAUDE AMBIENTAL / TOXICOLOGIA Year: 2022 Document type: Article Affiliation country: Bangladesh