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An Environmental Evaluation of Copper and Aluminum Metal Resources Circulation by Life Cycle Assessment

LCA기법을 적용한 구리 및 알루미늄 금속자원 순환의 환경성 평가

  • Shin, Woochul (Department of Environmental Engineering, Inha University) ;
  • Hwang, Yongwoo (Department of Environmental Engineering, Inha University) ;
  • Moon, Jinyoung (Department of Environmental Engineering, Inha University) ;
  • Kong, Chanhwi (Department of Environmental Engineering, Inha University)
  • Received : 2012.12.27
  • Accepted : 2014.02.13
  • Published : 2014.02.28

Abstract

In this research, we quantified the environmental load while using and not using secondary resources. During the process of primary processed product of metal resources (copper, aluminum), we applied LCA technique and analyzed by dividing into 8 environmental impact categories that affect the environment. Furthermore, we analyzed the greenhouse gas that occur during the process of primary processed product domestically and globally according to the changes of each metal resource's recycling rate. Consequently, when producing 1 ton of copper using secondary resources, the environmental effects were found to be 6.09E + 01 person-yr/f.u. and 7.23E + 01 person-yr/f.u. Additionally, as the recycling rate increased both globally and domestically, the amount of greenhouse gas decreased. Producing 1 ton of Aluminum using secondary resources, the environmental effects were found to be 2.34E + 02 person-yr/f.u. and 3.01E + 02 person-yr/f.u. Moreover, as the recycling rate domestically decreased, the amount of greenhouse gas increased, however the globally was decreased.

구리 및 알루미늄의 1차가공제품을 제조함에 있어 2차자원(스크랩)의 사용 및 미사용 시 발생되는 환경부하량을 전과정평가(LCA)기법을 적용하여 정량화하고, 환경에 미치는 영향을 8가지 환경영향범주로 나누어 환경부하를 분석하였다. 또한 구리 및 알루미늄의 자원순환율이 증가할 경우 동일한 1차가공제품생산 단계에서 발생되는 온실가스 발생량을 국내범위와 전지구적범위로 분석하였다. 그 결과 구리의 경우 1차가공제품 1 ton 생산 시 2차자원의 사용 및 미사용 시 전체 환경범주에 대한 환경영향은 각각 6.09E + 01 person-yr/f.u. 및 7.23E + 01 person-yr/f.u.로 나타났으며, 온실가스 발생량은 국내범위 및 전지구적범위 모두 자원순환율이 증가함에 따라 저감되는 것으로 조사되었다. 알루미늄의 경우 1차가공제품 1 ton 생산 시 2차자원의 사용 및 미사용 시 전체 환경범주에 대한 환경영향은 각각 2.34E + 02 person-yr/f.u. 및 3.01E + 02 person-yr/f.u.로 나타났으며, 온실가스 발생량은 국내범위에서는 자원순환율이 감소함에 따라, 전지구적범위에서는 자원순환율이 증가함에 따라 저감되는 것으로 조사되었다.

Keywords

References

  1. London Metal Exchange, http://www.lem.co.uk.
  2. Phipps, G., Mikolajczak, C. and Guckes, T., "Indium and gallium supply sustainability," 22nd EU PV Solar Conference, Milan Italy 4 Sep(2007).
  3. The Ministry of Environment, Development of the SEEA (System of Integrated Environment and Economic Account) and the preparation of green GDP(III)(2005).
  4. ISO/DIS 14041, 14042, 14043, Environmental Management-Life Cycle Assessment(1996).
  5. Kim, J., Hwang, Y. and Park, K., "Methodology of recycling potential evalution on end of life home appliance materials integrated by environmental and economical efficiency," Kor. Soc. Waste Manage., 19(8), 970-979(2002).
  6. The Ministry of Knowledge and Economy, "Establishment of company-supporting infrastructure for chemical analyses of metal resource recycling & its evaluation of green house gas reduction,"(2010).
  7. The Ministry of Knowledge and Economy, "The supply and demand of mineral commodity in 2011,"(2012).
  8. Korea Ocean Research Development Institute, http://www.kiost.ac.
  9. Korea Environment Industry Technology Institute, http://www.edp.or.kr.