共 181 条
Recovering materials from waste mobile phones: Recent technological developments
被引:83
作者:
Gu, Fu
[1
,2
,3
]
Summers, Peter A.
[4
]
Hall, Philip
[4
]
机构:
[1] Zhejiang Univ, Sch Mech Engn, State Key Lab Fluid Power & Mechatron Syst, Hangzhou 310027, Zhejiang, Peoples R China
[2] Zhejiang Univ, Dept Ind & Syst Engn, Hangzhou 310027, Zhejiang, Peoples R China
[3] Zhejiang Univ, Natl Inst Innovat Management, Hangzhou 310027, Zhejiang, Peoples R China
[4] Univ Nottingham Ningbo China, Dept Chem & Environm Engn, Ningbo 315100, Zhejiang, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Waste mobile phone;
Waste electrical and electronic equipment;
Recycling;
Material recovery;
Leaching;
PRINTED-CIRCUIT-BOARDS;
LITHIUM-ION BATTERIES;
LIFE-CYCLE ASSESSMENT;
LIQUID-CRYSTAL DISPLAY;
ELECTRONIC EQUIPMENT MANAGEMENT;
EXTRACTING PRECIOUS METALS;
MATERIAL FLOW-ANALYSIS;
SHAPE-MEMORY POLYMERS;
VALUABLE METALS;
GOLD RECOVERY;
D O I:
10.1016/j.jclepro.2019.117657
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
Due to the vast consumption and shortened lifespan of mobile phones, waste mobile phones (WMPs) have become one of the fastest-growing global waste electrical and electronic equipment (WEEE) streams. Although the recycling potential of WMPs is well-recognized, the current recycling rate remains low, jeopardizing the sustainability of both the environment and mobile phone industries. With the objective of identifying limitations in the current method developments that hinder WMP recycling, we review the material recovering technologies for WMP recycling, published in academic journals and/or conferences between Jan 2005 and Apirl 2019. Most WMP recycling processes have been developed to recover precious metals (such as gold and silver) from mobile phone printed circuit boards (PCBs), via acid leaching processes. However, pre-treatment and separation steps required to concentrate the waste stream for efficient extraction are often overlooked. In addition, to separate the individual components of the WMP, most recycling methods use manual disassembly as their first step, a practice which is not suitable for scale-up. Generally, particle size ranges used in laboratory trials are smaller than those used in current industrial practice, as it is not economically feasible to acquire such small particle sizes industrially. There is a current trend to replace the inorganic acids used for metal leaching with more environmentally-friendlier lixiviants, however, industrialization of these approaches is not economically viable. This review serves as a guidance for future research and development in this area, providing information to facilitate WMP management. (C) 2019 Elsevier Ltd. All rights reserved.
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