Recovery of Metals from Shredded Television Scrap
The production of electric and electronic equipment (EEE) is one of the fastest growing areas.This development has resulted in an increase of waste electric and electronic equipment (WEEE).In view of the environmental problems involved in the management of WEEE,many counties and organizations have drafted national legislation to improve the reuse,recycling and other forms of recovery of such wastes so as to reduce disposal.Recycling of WEEE is an important subject not only from the point of waste treatment but also from the recovery of valuable materials.Consumer electronic equipment (brown goods),such as television sets (TV),radio sets,and video recorders,are most common.However,recent work on recycling of waste electric and electronic equipment (WEEE) primarily focused on personal computer and printed circuit boards scraps.Based on a detailed characterization study of consumer electronic scraps,recycling of TV scraps oriented to recovery of metals is highlighted by utilizing air table separation,eddy current separation,and optical (metal) sorting process.The result indicates that a high recovery of copper could be obtained by utilizing an effective gravity separation process.The separation results reveal that air table separation is an effective technology to recover metals from consumer electronic scraps.By using a DGS table,approximately 90% of non-ferrous metals were recovered in the heavy product with a purity of 40%.Printed circuit boards and cables in TV scrap cause metals loss due to the fact that metals in printed circuit boards and cables are not liberated from plastics and ceramic materials.The study shows that eddy current separation and optical (metal) sorting process provide alternatives for recovery of metals from shredded TV scraps.
Recycling Electronic waste Waste treatment Metal recovery Television scrap
J.R.Cui E.Forssberg H.Manouchehri H.J.Roven
Division of Mineral Processing,Lule(a) University of Technology,Sweden Department of Materials Science and Engineering,Norwegian University of Science and Technology NTNU,
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
3461-3468
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）