Hybrid input - Output approach to metal production and its application to the introduction of lead-free solders

Shinichiro Nakamura*, Shinsuke Murakami, Kenichi Nakajima, Tetsuya Nagasaka

*この研究の対応する著者

研究成果: Article査読

33 被引用数 (Scopus)

抄録

The production process of metals such as copper, lead, and zinc is characterized by mutual interconnections and interdependence, as well as by the occurrence of a large number of byproducts, which include precious or rare metals, such as gold, silver, bismuth, and indium. On the basis of the framework of waste input - output (WIO), we present a hybrid 10 model that takes full account of the mutual interdependence among the metal production processes and the interdependence between them and all the other production sectors of the economy as well. The combination of a comprehensive representation of the whole national economy and the introduction of process knowledge of metal production allows for a detailed analysis of different materials-use scenarios under the consideration of full supply chain effects. For illustration, a hypothetical case study of the introduction of lead-free solder involving the production of silver as a byproduct of copper and lead smelting processes was developed and implemented using Japanese data. To meet the increased demand for the recovery and recycling of silver resources from end-of-life products, the final destination of metal silver in terms of products and user categories was estimated, and the target components with the highest silver concentration were identified.

本文言語English
ページ(範囲)3843-3848
ページ数6
ジャーナルEnvironmental Science and Technology
42
10
DOI
出版ステータスPublished - 2008 5 15

ASJC Scopus subject areas

  • 化学 (全般)
  • 環境化学

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