Electrostatic Separation for Recycling Waste Printed Circuit Board: A Study on External Factor and a Robust Design for Optimization

被引：37
作者：
Hou, Shibing [1 ]
Wu, Jiang [1 ]
Qin, Yufei [1 ]
Xu, Zhenming [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai 200030, Peoples R China
来源：
ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2010年 / 44卷 / 13期
基金：
国家高技术研究发展计划(863计划);
关键词：
NONMETALS; METAL;
D O I：
10.1021/es903936m
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Electrostatic separation is an effective and environmentally friendly method for recycling waste printed circuit board (PCB) by several kinds of electrostatic separators. However, some notable problems have been detected in its applications and cannot be efficiently resolved by optimizing the separation process. Instead of the separator itself, these problems are mainly caused by some external factors such as the nonconductive powder (NP) and the superficial moisture of feeding granule mixture. These problems finally lead to an inefficient separation. In the present research, the impacts of these external factors were investigated and a robust design was built to optimize the process and to weaken the adverse impact A most robust parameter setting (25 kv, 80 rpm) was concluded from the experimental design. In addition, some theoretical methods, including cyclone separation, were presented to eliminate these problems substantially. This will contribute to efficient electrostatic separation of waste PCB and make remarkable progress for industrial applications.
引用
收藏
页码：5177 / 5181
页数：5
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