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     · Western countries tend to export e-waste to Asia and Africa for recycling. The unorganized recycling of e-waste in those developing countries causes serious health hazards to the workers and the lives around the sites. (Zhu et al., 2008b Muenhor et al., 2010 He et al., 2012 Malliari and Kalantzi, 2017 Li et al., 2018).

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     · Ionic liquids (ILs), salts with a melting temperature below the boiling point of water, are one of the most recent fashion trends in modern chemistry. Nowadays, and taking into account the extensive research found in literature, it seems hard to imagine a sustainable world in the near future without the involvement of ILs, since they have low vapor pressure, are non-flammable, and display

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    Embedded technology seems finally to be coming into its own—thanks to Moore’s Law and the ever-pressing need for more real estate on the circuit board surface. No longer just for the odd, expensive military product, buried components can be found in that most ubiquitous of consumer products, the smartphone, as you will learn in this issue.

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     · According to the literature, the highest leaching efficiency of gold from the waste computer circuit boards was 73.17% by mixing cultures of C. violaceum and P.aeruginosa, while the highest leaching efficiency of gold was 69.3% by P. aeruginosa alone.

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     · A consequence of this is the production of electronic waste (e-waste) which, in 2018 amounted to 50 million tonnes, 1,2 with a projected annual growth of 3–5%, three times more than for other waste streams. 3 Reports on recycling rates vary, with estimates of around 20–30%. 1,4 It is estimated that more than 70% of globally produced waste

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     · The process enables a concentrate of gold, silver, palladium, platinum to be refined into conflict-free minerals and produces 99 percent pure gold from electronic scrap. “Other companies can follow this model and recycle e-waste within the guideline of working with

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     · (b) waste generated on board vehicles, trains, aeroplanes and ships, until such waste is offloaded in order to be recovered or disposed of (c) shipments of radioactive waste as defined in Article 2 of Council Directive 92/3/Euratom of 3 February 1992 on the supervision and control of shipments of radioactive waste between Member States and

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    Among electronic waste, the most complex and difficult component is waste printed circuit boards (WPCBs) which contain not only precious metals such as gold (Au), silver (Ag), platinum (Pt) and palladium (Pd) but also polymer materials such as organic plastics and brominated flame retardants (Wang et al., 2018).

  • EBITDA Multiples by Industry Equidam

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     · This paper evaluated the ability of Pseudomonas fluorescens to leach gold from waste printed circuit boards (WPCBs). Gold was recovered as gold-cyanide complex and cyanide was produced by Pseudomonas fluorescens.In this paper, the effect of pH on gold leaching efficiency was studied, the P.fluorescens was domesticated to grow at higher pH (pH 8 and 9), and the concentration of cyanide

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  • Value-added products from thermochemical treatments of

     · Western countries tend to export e-waste to Asia and Africa for recycling. The unorganized recycling of e-waste in those developing countries causes serious health hazards to the workers and the lives around the sites. (Zhu et al., 2008b Muenhor et al., 2010 He et al., 2012 Malliari and Kalantzi, 2017 Li et al., 2018).

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     · The Electric Power Research Institute (EPRI) conducts research, development, and demonstration projects for the benefit of the public in the United States and internationally. As an independent, nonprofit organization for public interest energy and environmental research, we focus on electricity generation, delivery, and use in collaboration with the electricity sector, its stakeholders and

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     · Data in Table 2 reveal that 56% of the value of CPUs is due to gold, but copper has even a higher share value, comprised between 73% and 90%, in the case of motherboards (MBs), mixed PCBs (MIX) and mobile phones (MPs). This suggests that the economic motivation for the treatment of electronic waste should not be strictly dependent on gold content. In addition, based on the ecological

  • Best Waste Recycling Business ideas in 2021 [Top 50 Picks]

    50 Best Waste Recycling Business ideas to Start With Low Investment. Table of Content [ show] Recycling of Aluminum Cans. Recycling of Scrap Gold. Recyclable Waste Collection Centre. Recycling of Construction Waste. Garbage Recycling. Cartridge Recycling. Electronic Waste Recycling.

  • What Is Recycling & What to Recycle Waste Management

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  • EBITDA Multiples by Industry Equidam

     · 9.68. Water & Related Utilities. 12.47. Wireless Telecommunications Services. 6.81. *For these industries, a higher level business sector multiple is applied. **For these industries, a lower activity-based level is available. With Equidam, you can seamlessly compute your valuation using 5 methods, 2 of which are properly using these multiples

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