Journal ArticleDOI
Recovering full metallic resources from waste printed circuit boards: A refined review
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TLDR
In this paper, an integrated, definite, and systematic recovery route of full renewable metals from waste printed circuit board was proposed, which included temperature-control crushing, magnetic separation, high voltage electrostatic separation, vacuum gasification and condensation, electrolysis, and bioleaching.About:
This article is published in Journal of Cleaner Production.The article was published on 2020-01-20. It has received 118 citations till now.read more
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Environmental-friendly recovery of non-metallic resources from waste printed circuit boards: A review
TL;DR: In this paper, the authors reviewed the recent developments of the recycling techniques for nonmetallic components, including pyrolysis, supercritical fluid oxidation, chemical leaching, and direct recycling of synthetic materials.
Journal ArticleDOI
Fractional grey model based on non-singular exponential kernel and its application in the prediction of electronic waste precious metal content.
TL;DR: The generation mechanism of e-waste is deduced and Fractional derivative grey models base on a weak singular power kernel function and a non-singular exponential kernel function (EFGM(q,1)) are established, which has the advantages of simpler solution, lower calculation complexity and wider scope of application.
Journal ArticleDOI
Utilizing concrete pillars as an environmental mining practice in underground mines
Shuai Cao,Shuai Cao,Shuai Cao,Gaili Xue,Gaili Xue,Erol Yilmaz,Zhen-Yu Yin,Fudou Yang,Fudou Yang +8 more
TL;DR: In this article, the use of fiber-reinforced concrete (FRC) as a pillar for underground mines has been investigated by a mechanical press and a computed tomography (CT) tool.
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Advances in physiochemical and biotechnological approaches for sustainable metal recovery from e-waste: A critical review
Aminul Islam,A.M. Swaraz,Siow Hwa Teo,Yun Hin Taufiq-Yap,Dai-Viet N. Vo,Mohd Lokman Ibrahim,G. Abdulkreem-Alsultan,Umer Rashid,Md. Rabiul Awual,Md. Rabiul Awual +9 more
TL;DR: In this article, the application of biotechnological approach for metal recovery was discussed from the theoretical and experimental views and the hazardous impact on human health and environment due to the toxic substances released from e-waste were highlighted.
Journal ArticleDOI
Flotation dynamics of metal and non-metal components in waste printed circuit boards
Xiangnan Zhu,Zhang Yuankang,Zhang Yiqing,Yan Zhengqing,Chun-chen Nie,Xianjun Lyu,You-jun Tao,Jun Qiu,Lin Li +8 more
TL;DR: The flotation kinetics show that the removal of impurity particles represented by silicon mainly occurs in the initial stage of flotation process, and the loss of copper increases with flotation time and collector dosage.
References
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Journal ArticleDOI
A review on circular economy: the expected transition to a balanced interplay of environmental and economic systems
TL;DR: In this paper, un estudio en donde se proporciona una revision extensa de la literatura de las two ultimas decadas, con el proposito de captar las principales caracteristicas y perspectivas of la CE (Economia circular): origenes, principios basicos, ventajas and desventajas, Modelado e implementacion of CE in los diferentes niveles (micro, meso, and macro) in todo el world.
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Heavy Metals Concentrations of Surface Dust from e-Waste Recycling and Its Human Health Implications in Southeast China
TL;DR: Risk assessment predicted that Pb and Cu originating from circuit board recycling have the potential to pose serious health risks to workers and local residents of Guiyu, especially children, and warrants an urgent investigation into heavy metal related health impacts.
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Recycling of waste printed circuit boards: a review of current technologies and treatment status in China.
Kui Huang,Jie Guo,Zhenming Xu +2 more
TL;DR: Based on circular economy concept in China and complete recycling and resource utilization for all materials, a new environmental-friendly integrated recycling process with no pollution and high efficiency for waste PCBs was provided and discussed in detail.
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Waste Printed Circuit Boards recycling: an extensive assessment of current status
Biplab Ghosh,Biplab Ghosh,Malay K. Ghosh,Malay K. Ghosh,Pankaj Kumar Parhi,Priyanka Mukherjee,Priyanka Mukherjee,Brahmeshwar Mishra,Brahmeshwar Mishra +8 more
TL;DR: More than 150 related articles mostly published in the last 15 years and covering the broad areas like characterization of waste printed circuit boards, health hazards associated with the processing and the different routes of recycling have been analyzed to provide a comprehensive overview on this topic as discussed by the authors.
Journal ArticleDOI
Recycle technology for recovering resources and products from waste printed circuit boards.
TL;DR: In this study, a total of 400 kg of waste PCBs was processed by a recycle technology without negative impact to the environment and the results indicated that two-step crushing was an effect process to strip metals from base plates completely and the nonmetal of Waste PCBs attained 80% weight of a kind of nonmetallic plate that expanded the applying prospect of waste non Metals materials.