Driving sustainable circular economy in electronics: A comprehensive review on environmental life cycle assessment of e-waste recycling

He, Yifeng; Kiehbadroudinezhad, Mohammadali; Hosseinzadeh-Bandbafha, Homa; Gupta, Vijai Kumar; Peng, Wanxi; Lam, Su Shiung; Tabatabaei, Meisam; Aghbashlo, Mortaza

doi:10.1016/j.envpol.2023.123081

Cited by 21 publications

(3 citation statements)

References 162 publications

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“…With growing environmental awareness, increasing costs for raw materials, and the constant pressure on the health sector to reduce its operational costs, the existing linear management approach for single-use medical products, discharged without being further treated for precious metals recovery (Table 7), is reaching its limits [43].…”

Section: Economic and Environmental Aspectsmentioning

confidence: 99%

Recovery of Noble Metals (Au, Pt, Ir, and Ta) from Spent Single-Use Medical–Technological Products

Kokkinos,

Prochaska,

Lampou

et al. 2024

Minerals

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Due to their unique properties, i.e., fluoroscopy response and inertness, noble metals and alloys are present in several widespread medical–technological products, such as catheters, guide-wires, and stents. Despite their value, these products serve as single-use consumables, following a fate of solid waste disposal and loss of their valuable metals. This work studies the development of a treatment methodology to recover noble metals such as Pt, Ir, Au, and Ta from certain commercial products commonly used for medical practices. In particular, a sequence of preliminary pyrolysis, aiming at polymer elimination, as well as an acid digestion step for selective metals dissolution, is suggested. Pyrolysis was capable of enriching samples with the targeted metals, though a small change in their oxidation states was observed. Still, acid digestion was fully able to successfully separate Au using a 50% v/v aqua regia solution for 30 min at room temperature and the Pt/Ir using concentrated aqua regia for 72 h under heating. Dissolution of Ta required a different leaching solution, i.e., a 50% v/v HF/H2SO4 mixture for 10 h under heating. According to the developed method, selective extraction of such noble metals in a concentrated slurry provides a high potential for the complete recovery and valorization of otherwise disposed medical wastes.

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Section: Economic and Environmental Aspectsmentioning

confidence: 99%

Recovery of Noble Metals (Au, Pt, Ir, and Ta) from Spent Single-Use Medical–Technological Products

Kokkinos,

Prochaska,

Lampou

et al. 2024

Minerals

View full text Add to dashboard Cite

show abstract

“…Because e-waste frequently contains dangerous materials, improper disposal and informal recycling of it present major threats to the environment and human health. Approximately 80% of e-waste is disposed of using environmentally harmful techniques, which contaminate the air, land, and water [2]. Informal recycling practices in developing countries contribute to health threats, as exposure to toxic substances at these sites is linked to an increased risk of cancerous and non-cancerous diseases.…”

Section: Introductionmentioning

confidence: 99%

E-Waste: Management Techniques for The Environmental Sustainability

Onkar Nath Mishra,

Chatrabhuj,

Bipin Prajapati

2024

Int Res J Adv Engg Mgt

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The growing generation of E-Waste has forced the various environmental agencies of the world to studies about the serious problematic trends of generation, uses, management and about the discarded part of E-Waste. This problem also grabs attention of many researchers of the world to know about the different aspects of E-Waste generation in such a rapid rate. Some of them discover new ways of handling this electronic waste which contains hazardous and some precious metals in it. This research paper delves into the global challenges posed by electronic waste (e-waste) and explores opportunities for sustainable management. The study underscores the pressing need for responsible recycling strategies, advocating the circular economy model as a viable framework. It provides a detailed examination of India's burgeoning e-waste generation, regulatory measures, and the imperative for effective enforcement. The paper explores mechanical methods for e-waste processing, considering efficiency, economic implications, and the life cycle assessment of e-waste. Practical applications of e-waste in civil engineering, from construction materials to artistic installations, are outlined. Ultimately, the research emphasizes the urgency of collaborative efforts among governments, industries, and individuals to establish robust infrastructure and practices for responsible e-waste management, weighing economic advantages against potential environmental hazards associated with recycling.

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“…E-waste encompasses as many discarded electrical and electronic devices like, computers, smartphones, televisions, and household appliances, which have reached the end of their life cycles. The proliferation of technology, coupled with shortened product lifespans and rapid obsolescence, has led to a surge in E-waste generation [7][8], posing significant challenges to environmental sustainability and resource management. As a complex mixture of metals, plastics, and other materials, E-waste not only presents disposal challenges but also represents a potential reservoir of valuable resources.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Geotechnics: Harnessing Bagasse Ash and E-Waste for Improving Soil Performance

Onkar Nath Mishra,

Chatrabhuj,

Bipin Prajapati

2024

Int Res J Adv Engg Hub

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This study addresses the prevalent issue of expanding soils in India, which exhibit a propensity to shrink and swell in response to changes in moisture content. Because of their high porosity and poor permeability, expansive soils can seriously jeopardize a structure's ability to support its weight. This study was aimed to use industrial waste like Bagasse ash and processed E-waste in a different ratio. Locally available soil from Sultanpur, Uttar Pradesh, was considered for experimental investigation. First optimum Bagasse ash content from different ratio (10%, 20%, 30% and 40%) by weight of soil is determined and then E-waste in different ratios (2.5%, 5% and 7.5%) was blended in soil. To determine enhancement in soil strength various test like California Bearing Ratio, Unconfined Compressive Strength was done. Optimum Bagasse ash content was determined as 15% and E-waste was 7.5%. Results from the experimental test indicate that the addition of E-waste combined with Bagasse ash improves soil strength in terms of CBR and UCS values. These test results will be helpful in the development and design of pavements and road construction in rural areas.

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Driving sustainable circular economy in electronics: A comprehensive review on environmental life cycle assessment of e-waste recycling

Cited by 21 publications

References 162 publications

Recovery of Noble Metals (Au, Pt, Ir, and Ta) from Spent Single-Use Medical–Technological Products

Recovery of Noble Metals (Au, Pt, Ir, and Ta) from Spent Single-Use Medical–Technological Products

E-Waste: Management Techniques for The Environmental Sustainability

Sustainable Geotechnics: Harnessing Bagasse Ash and E-Waste for Improving Soil Performance

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