Articles with "waste printed" as a keyword



Drivers and Pathways for the Recovery of Critical Metals from Waste‐Printed Circuit Boards

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Published in 2024 at "Advanced Science"

DOI: 10.1002/advs.202309635

Abstract: The ever‐increasing importance of critical metals (CMs) in modern society underscores their resource security and circularity. Waste‐printed circuit boards (WPCBs) are particularly attractive reservoirs of CMs due to their gamut CM embedding and ubiquitous presence.… read more here.

Keywords: waste printed; circuit boards; critical metals; printed circuit ... See more keywords

Pyro-Refining of Mechanically Treated Waste Printed Circuit Boards in a DC Arc-Furnace

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Published in 2018 at "Journal of Sustainable Metallurgy"

DOI: 10.1007/s40831-018-0167-3

Abstract: This paper presents the results of theoretical assessment and a preliminary experimental investigation of the modified pyrometallurgical processing of metallic granulate obtained after mechanical treatment of waste printed circuit boards (WPCBs). The studied two-step process… read more here.

Keywords: phase; waste printed; furnace; circuit boards ... See more keywords

Multi-Objective Optimization of the Recovery of Base and Precious Metals from Waste Printed Circuit Boards by Two-Stage Hydrometallurgical Process Using Taguchi-Based Grey Relationship Analysis

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Published in 2024 at "Journal of Sustainable Metallurgy"

DOI: 10.1007/s40831-024-00850-1

Abstract: This study focused on determining the optimum conditions for the maximum recovery of base and precious metals from printed circuit boards of end-of-life desktop computer motherboards using Taguchi-based grey relation analysis. In the first stage… read more here.

Keywords: waste printed; circuit boards; analysis; printed circuit ... See more keywords
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Emission characteristics of polybrominated diphenyl ethers from the thermal disassembly of waste printed circuit boards

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Published in 2020 at "Atmospheric Environment"

DOI: 10.1016/j.atmosenv.2020.117402

Abstract: Abstract Thermal disassembly is prevalently applied for the removal of electronic components on waste printed circuit boards (WPCBs), and temperature is an important factor influencing the pollutant emission process. The emission characteristics of polybrominated diphenyl… read more here.

Keywords: waste printed; thermal disassembly; scale experiments; printed circuit ... See more keywords

Enhanced bioleaching efficiency of copper from waste printed circuit board driven by nitrogen-doped carbon nanotubes modified electrode

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Published in 2017 at "Chemical Engineering Journal"

DOI: 10.1016/j.cej.2017.05.024

Abstract: Abstract To improve the copper bioleaching efficiency from waste printed circuit board (WPCB) by Acidithiobacillus ferrooxidans ( A. ferrooxidans ), a novel simplified material (nitrogen-doped carbon nanotubes (NCNTs) modified electrode) was used in this paper.… read more here.

Keywords: modified electrode; waste printed; bioleaching efficiency; copper ... See more keywords

Dismantling and electrochemical copper recovery from Waste Printed Circuit Boards in H2SO4–CuSO4–NaCl solutions

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Published in 2019 at "Journal of Cleaner Production"

DOI: 10.1016/j.jclepro.2019.05.112

Abstract: Abstract The worldwide growing of electrical and electronic equipment makes increasingly urgent to find environmentally friendly treatments for e-waste. In this paper, the attention has been focused on i) the eco-friendly dismantling of the electronic… read more here.

Keywords: waste printed; circuit boards; copper; printed circuit ... See more keywords

Eddy current separation can be used in separation of non-ferrous particles from crushed waste printed circuit boards

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Published in 2021 at "Journal of Cleaner Production"

DOI: 10.1016/j.jclepro.2021.127755

Abstract: Abstract Waste printed circuit boards are produced greatly due to the wide application of electronic devices, in which non-ferrous metals are valuable resources. Without effective recovery processes, it can cause serious heavy metal pollution. Traditional… read more here.

Keywords: waste printed; non ferrous; eddy current; separation ... See more keywords
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Microwave-assisted catalytic pyrolysis of waste printed circuit boards, and migration and distribution of bromine.

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Published in 2021 at "Journal of hazardous materials"

DOI: 10.1016/j.jhazmat.2020.123749

Abstract: Microwave-assisted pyrolysis (MAP) of waste printed circuit boards (WPCB) was performed to investigate the characteristics of pyrolysis product and Br fixation. Pyrolysis conversion increased with increasing temperature, reaching 93.3 % at 650 °C. However, increasing… read more here.

Keywords: waste printed; pyrolysis; microwave assisted; circuit boards ... See more keywords

O2-enriched microbial activity with pH-sensitive solvo-chemical and electro-chlorination strategy to reclaim critical metals from the hazardous waste printed circuit boards.

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Published in 2021 at "Journal of hazardous materials"

DOI: 10.1016/j.jhazmat.2021.125769

Abstract: An innovative process integration for the sustainable recovery of critical metals from waste printed circuit boards (WPCBs) is demonstrated. In the acid pre-treatment of WPCBs, > 95% of highly toxic metals lead and tin could dissolve… read more here.

Keywords: waste printed; circuit boards; electro chlorination; printed circuit ... See more keywords

Bioremediation of noxious metals from e-waste printed circuit boards by Frankia.

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Published in 2021 at "Microbiological research"

DOI: 10.1016/j.micres.2021.126707

Abstract: The environmental noxious e-waste was collected and physicochemical characterized by Scanning electron microscopy (SEM) along with energy dispersive X-ray spectroscopy (EDX), Atomic absorption spectrometry (AAS), and X-ray diffraction analysis (XRD) exploration to understand the presence… read more here.

Keywords: waste printed; analysis; waste; bioremediation ... See more keywords

Environmentally friendly synthesis of copper nanoparticles from waste printed circuit boards

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Published in 2020 at "Separation and Purification Technology"

DOI: 10.1016/j.seppur.2019.115860

Abstract: Abstract A facile environmentally friendly hydrometallurgical approach to recover copper as nanoparticles from electronic waste (e-waste) has been presented. Selective leaching of copper from powdered old computers waste printed circuit boards (WPCBs) was executed in… read more here.

Keywords: waste printed; circuit boards; environmentally friendly; copper ... See more keywords