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Characterization of Metal Composition in Spent Printed Circuit Boards of Mobile Phones

폐휴대폰 내의 인쇄회로기판에 함유된 금속 성분의 변화

  • Jeong, jinki (Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Lee, Jae-chun (Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Choi, Jun-chul (ER metals)
  • 정진기 (한국지질자원연구원 광물자원연구본부) ;
  • 이재천 (한국지질자원연구원 광물자원연구본부) ;
  • 최준철 (ER메탈(주))
  • Received : 2015.02.02
  • Accepted : 2015.05.22
  • Published : 2015.06.30

Abstract

Mobile phone has become one of the essential items in our daily life. In Korea, it is estimated that more than 20 million cell phones are discarded each year due to advancement in technology, thus creating disposal and environmental pollution. In order to conserve the resources, their proper recycling is essential as it contains both valuable and toxic metals. The economics of the recycling will depend on the amount and value of the metals. Therefore, it is necessary to determine the composition of the metals present in the different cell phones. In the present study, a report is presented on the variation of metal content per year of waste mobile phones. A review has been made for the mobile phones manufactured during the period 2000-2009 and metal content of the printed circuit boards (PCBs) by analyzing their metals. An example of the precious metal palladium and of the heavy metal lead shows the decreasing trend.

오늘날 개인의 필수 품목이 된 휴대폰은 국내에서 매년 2,000만대 이상이 폐기되는 것으로 추정되고 있다. 휴대폰에는 유가금속 뿐만 아니라 유해금속이 들어있기 때문에 적절한 재활용이 필요하다. 휴대폰에 함유된 유용금속성분의 함량에 따라 재활용공정에서의 경제성이 달라지기에 성분의 분석이 중요하다. 본 연구에서는 폐휴대폰에 함유된 금속 성분의 년도별 변화를 보았다. 2000년에서 2009년에 제조된 휴대폰을 대상으로 휴대폰내의 인쇄회로기판의 성분과 함량을 조사하고 함량의 변화추이를 확인하였다. 분석결과 귀금속인 팔라듐과 중금속인 납의 함량은 감소하는 경향을 보였다.

Keywords

References

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