High added-value materials recovery using electronic scrap-transforming waste to valuable products

Gautam, Pushpa; Behera, C.K.; Sinha, Indrajit; Gicheva, Gospodinka; Singh, K. K.

doi:10.1016/j.jclepro.2021.129836

Cited by 51 publications

(16 citation statements)

References 159 publications

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“…A mobile phone, for example, involves more than 40 elements, including precious metals such as gold (Au), silver (Ag), and palladium (Pd), and base metals such as tin (Sn) and copper (Cu) (Liu et al, 2009 ). Table 1 describes the metal composition of various electrical devices and components (Gautam et al, 2022 ). Due to the rapid development in electronic industries and high consumer demand, electrical and electronic equipment have a shorter lifetime in developed and developing countries markets, leading to tons of electronic waste.…”

Section: E-waste Generation Type and Compositionmentioning

confidence: 99%

“…The rapid growth in technology creates significant challenges in developing e-waste management policies. The reuse market, the recycling industry, economic conditions, and waste segregation programs all have an impact on the management system of electronic waste (Gautam et al, 2022 ).…”

Section: E-waste Generation Type and Compositionmentioning

confidence: 99%

“…The reuse market, the recycling industry, economic conditions, and waste segregation programs all have an impact on the management system of electronic waste (Gautam et al, 2022 ).…”

Section: E-waste Generation Type and Compositionmentioning

confidence: 99%

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E-waste recycled materials as efficient catalysts for renewable energy technologies and better environmental sustainability

Seif

Salem

Allam

2023

Environ Dev Sustain

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Waste from electrical and electronic equipment exponentially increased due to the innovation and the ever-increasing demand for electronic products in our life. The quantities of electronic waste (e-waste) produced are expected to reach 44.4 million metric tons over the next five years. Consequently, the global market for electronics recycling is expected to reach $65.8 billion by 2026. However, electronic waste management in developing countries is not appropriately handled, as only 17.4% has been collected and recycled. The inadequate electronic waste treatment causes significant environmental and health issues and a systematic depletion of natural resources in secondary material recycling and extracting valuable materials. Electronic waste contains numerous valuable materials that can be recovered and reused to create renewable energy technologies to overcome the shortage of raw materials and the adverse effects of using non-renewable energy resources. Several approaches were devoted to mitigate the impact of climate change. The cooperate social responsibilities supported integrating informal collection and recycling agencies into a well-structured management program. Moreover, the emission reductions resulting from recycling and proper management systems significantly impact climate change solutions. This emission reduction will create a channel in carbon market mechanisms by trading the CO2 emission reductions. This review provides an up-to-date overview and discussion of the different categories of electronic waste, the recycling methods, and the use of high recycled value-added (HAV) materials from various e-waste components in green renewable energy technologies.

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Section: E-waste Generation Type and Compositionmentioning

confidence: 99%

Section: E-waste Generation Type and Compositionmentioning

confidence: 99%

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E-waste recycled materials as efficient catalysts for renewable energy technologies and better environmental sustainability

Seif

Salem

Allam

2023

Environ Dev Sustain

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“…The raw material recovered by cementation has a very low content of the metal itself, so it must be refined before further use. In the case of copper, this refining is usually done by smelting followed by electrolytic refining [13,18].…”

Section: Figure 1 Schematic Diagram Of the Cementation Process [19]mentioning

confidence: 99%

“…Given the growing demand for copper worldwide, recycling and reusing copper is the only way for a sustainable future for many industries [13,14]. This study deals with the issue of copper separation from acidic etching solutions generated during the PCB production process.…”

Section: Introductionmentioning

confidence: 99%

Separation of Copper from Acidic Etching Solutions

UJHÁZY

Čablík

et al. 2022

GSE

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This study deals with the issue of copper separation from acidic etching solutions formed during the process of production of printed circuit boards (PCBs) for the electrical and electronic industries. The article describes the selected methods of copper separation and summarizes the results of an experiment, in which the efficiency of copper recovery from the depleted acid solutions by the cementation and precipitation method was verified. In the process of cementation, iron in the form of metallic swarf was used as a precipitant. To verify the efficiency of the precipitation method, CaCO3 limestone, Ca(OH)2 calcium hydroxide and NaOH solution were used. During the measurement, the amount of Cu in the solution was observed for both methods in dependence on time, temperature, and pH.

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Nanoproteases: Alternatives to Natural Protease for Biotechnological Applications

Wang,

Guo,

2024

Chemistry A European J

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Some nanomaterials with intrinsic protease‐like activity have the advantages of good stability, biosafety, low price, large‐scale preparation and unique property of nanomaterials, which are promising alternatives for natural proteases in various applications. An especial term, "nanoprotease”, has been coined to stress the intrinsic proteolytic property of these nanomaterials. As a new generation of artificial proteases, they have become a burgeoning field, attracting many researchers to design and synthesize high performance nanoproteases. In this review, we summarize recent progress on all types of nanoproteases with regard of their activity, mechanism and application and introduce a new and effective strategy for engineering high‐performance nanoproteases. In addition, we discuss the challenges and opportunities of nanoprotease research in the future

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High added-value materials recovery using electronic scrap-transforming waste to valuable products

Cited by 51 publications

References 159 publications

E-waste recycled materials as efficient catalysts for renewable energy technologies and better environmental sustainability

E-waste recycled materials as efficient catalysts for renewable energy technologies and better environmental sustainability

Separation of Copper from Acidic Etching Solutions

Nanoproteases: Alternatives to Natural Protease for Biotechnological Applications

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