Publication

Biorecovery of Precious Metal Nanoparticles From Waste Electrical and Electronic Equipments

2019
Book Chapters

Abstract

The accelerating rate of accumulation of electronic waste or waste electrical and electronic equipment (WEEE) is a global problem due to the environmental and health consequences. Recycling of WEEE is a sustainable solution to overcome this problem. Use of WEEE as a secondary ore to extract precious metals and metal nanoparticles is widely practiced in recycling systems. The wider array of applications of precious metals and metal nanoparticles and greener production means has increased the demand from industry. The use of microorganisms has been identified as a greener method for recycling WEEE and extracting metals and their nanoparticles. Furthermore, the ability of such microorganisms to produce nanoparticles using their biological mechanisms is a major advantage. This chapter discusses the extraction of metals and metal nanoparticles as a value-added product of microorganism-mediated WEEE recycling processes, their advantages and disadvantages compared to conventional methods, and potential applications

Official source

https://infoscience.epfl.ch/entities/publication/07c6d513-dbf1-4baa-bdf2-9d18d46939ac

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2019
Book Chapters

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/07c6d513-dbf1-4baa-bdf2-9d18d46939ac

About this result

Related concepts (32)

Electronic waste

Electronic waste or e-waste describes discarded electrical or electronic devices. It is also commonly known as waste electrical and electronic equipment (WEEE) or end-of-life (EOL) electronics. Used electronics which are destined for refurbishment, reuse, resale, salvage recycling through material recovery, or disposal are also considered e-waste. Informal processing of e-waste in developing countries can lead to adverse human health effects and environmental pollution.

Electronic waste recycling

Electronic waste recycling, electronics recycling or e-waste recycling is the disassembly and separation of components and raw materials of waste electronics; when referring to specific types of e-waste, the terms like computer recycling or mobile phone recycling may be used. Like other waste streams, re-use, donation and repair are common sustainable ways to dispose of IT waste. Since its inception in the early 1990s, more and more devices are recycled worldwide due to increased awareness and investment.

Precious metal

Precious metals are rare, naturally occurring metallic chemical elements of high economic value. Chemically, the precious metals tend to be less reactive than most elements (see noble metal). They are usually ductile and have a high lustre. Historically, precious metals were important as currency but are now regarded mainly as investment and industrial raw materials. Gold, silver, platinum, and palladium each have an ISO 4217 currency code. The best known precious metals are the coinage metals, which are gold and silver.

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