Recovery of residual copper from low-content tailings derived from waste electrical cable treatment

Anastassakis, Georgios N.; Bevilacqua, Paolo; Lorenzi, Lorenzo De

doi:10.1016/j.minpro.2015.09.011

Cited by 14 publications

(11 citation statements)

References 20 publications

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“…Therefore, the technology is not suitable for the treatment in large numbers of waste-cables [11]. This technology can be used as secondary technology treatment if the plastic materials obtained from the mechanical/physical separation still contains some copper (low-copper-content wastecables) [47,48]. According to [11], chemical technology is to treat waste-cables by the use of salt solution or organic solvents which dissolve the plastic material, but do not react with the copper cores.…”

Section: Figure 3 the Process Flow Of Waste-cable Treatment Through Liquid Nitrogen Freezing Technologymentioning

confidence: 99%

“…Recycling copper significantly contributes to natural resources conservation, waste minimization, energy savings, and cost reduction. There are so many advantages to recycling copper that the value of scrap is approximately 85-95 % the price of newly mined ore [21,48,83,84,85]. Copper is a trace element that is essential for plant and animal health therefore it is important for some copper to remain in its natural state (recycling contributes to conservation this resources).…”

Section: Recycling -A Step Towards a Circular Economymentioning

confidence: 99%

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Importance of Recycling the Waste-Cables Containing Copper and PVC

Blinová

Godovčin

2021

Research Papers Faculty of Materials Science and Technology Slovak University of Technology

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Urbanization, development of economy, increasing population and improved living standards and lifestyle have caused a sharp growth in waste. Inappropriate or inefficient waste disposal techniques can cause serious air, soil, and groundwater pollution, which subsequently can negatively affect the urban environment and threaten the health of residents. The goal of waste management is to move to a circular economy in which waste does not exist. If there is no possible way to reduce or reuse waste, the best solution is recycling it. Recycling brings abundant benefits on the economic and ecological levels levels, and helps reduce overall human health risk of adverse impacts. Recycling of the waste-cables which contain PVC and copper replaces the production of virgin PVC and mining of copper from copper ore, it reduces landfill solid waste pressures, saves energy and water sources, reduces emissions to environment, and also reduces negative impacts from improperly dispose of waste, etc. This paper presents an overview of recycling techniques for the waste-cables containing copper as a core and polyvinyl chloride as an insulating layer or sheath. It also lists advantages and disadvantages of these techniques and importance of recycling this type of waste.

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Section: Figure 3 the Process Flow Of Waste-cable Treatment Through Liquid Nitrogen Freezing Technologymentioning

confidence: 99%

Section: Recycling -A Step Towards a Circular Economymentioning

confidence: 99%

Importance of Recycling the Waste-Cables Containing Copper and PVC

Blinová

Godovčin

2021

Research Papers Faculty of Materials Science and Technology Slovak University of Technology

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“…Copper, being a metal with high electrical and thermal conductivity, good malleability and ductility is considered one of the most important industrial metals [8,9]. It can be recycled and re-used countless times, and if it is in powder form or nanometer-sized, it reveals new properties [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…It is reported in [17] that iron, zinc and aluminum as cementation agents follow a first-order kinetics and different rates cementation are observed in each case. Having a large negative reduction potential, aluminum has served the precipitant metal of choice for different cementation systems such as gold [18,19], lead [20], mercury [21], platinum and palladium [22], and most of all, copper [8,18,23]:…”

Section: Introductionmentioning

confidence: 99%

Copper recovery by cementing from waste solutions derived from the manufacturing/printing industry

Costa

Lustig

D'Angelo

et al. 2020

Journal of Environmental Chemical Engineering

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“…As it can be seen, the concentration of copper decreased from 3000 mg/L to 0 mg/L in only 2 hours. Anastassakis et al(2015) spend more than 8 hours to remove all the solubilized copper from the solution by cementation[49]. As a consequence of the redox reaction, the scrap iron used (Fe o ) was oxidized into Fe(II) ions.…”

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confidence: 99%

Elemental Copper Recovery from e-Wastes Mediated with a Two-Step Bioleaching Process

Benzal

Solé

Lao

et al. 2020

Waste Biomass Valor

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Copper recovery from printed circuit boards (PCB) from waste mobile phones was investigated using a two-step bioleaching process. The method consists of a first step where Fe(II) ions are biologically oxidised to Fe(III) by Acidithiobacillus ferrooxidans. Later, Fe (III) ions are put in contact with the PCBs for copper solubilisation. At the conditions tested in the present work, the Fe(II) bio-oxidation (first step) was almost completed in 48 h. Two different methods (filtration and sedimentation) for biomass separation before the second step were tested. No significance differences between both separation methods were observed in terms of the overall process efficiency. In both cases, using 7.5 g/L of e-waste concentration, copper recovery of 95-100% were obtained in only 48 hours. In order to test an inexpensive and environmental friendly method to recovery the copper from the leachate solution, cementation of Cu (II) with metallic iron was performed. The copper powder obtained had purity of 64.8%.

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Recovery of residual copper from low-content tailings derived from waste electrical cable treatment

Cited by 14 publications

References 20 publications

Importance of Recycling the Waste-Cables Containing Copper and PVC

Importance of Recycling the Waste-Cables Containing Copper and PVC

Copper recovery by cementing from waste solutions derived from the manufacturing/printing industry

Elemental Copper Recovery from e-Wastes Mediated with a Two-Step Bioleaching Process

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