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タイトル
  • ja 都市鉱山の経済学 : エレクトロニクス製品を中心に
  • en An Economic Analysis of Urban Mines : Focusing on Electronics Products
作成者
アクセス権 open access
主題
  • Other en Urban Mines
  • Other en Mobile Phone
  • Other en WEEE
  • Other en Recycling
  • Other en Small House Appliance
  • Other en Precious Metal
  • NDC 334
内容注記
  • Abstract en This Review looks at case studies drawn from Japan, Belgium and USA, so as to provide an economic analysis of what is known as urban mines. The term 'urban mine' has been coined to specify designated urban plants where discarded manufactured products can be stored and the extraction of metals from the products carried out (Nanjyo, 1988) .<BR> It focuses in particular on the issue of electronic wastes, types of wastes that constitute a complex mixture of still valuable yet extremely hazardous materials. Such materials are the residue of products that have themselves always been important factors in controlling the demand for the primary metals used in their production and have thus contributed to an increase in their price, while the uneven distribution of these often rare metals and the various changing conditions responsible for their price increase have, at the same time, become global issues. Although the potential for recycling electronics products is significant, many products are discarded without due care, and, consequently, are improperly treated. Meanwhile, the latest global financial crisis has caused the price of precious metals to plummet, the market is as a result in turmoil, and the recycling market is also in disarray; all this in its turn has influenced the issue of urban mines. <BR>(1) The proper treatment of waste is the premise for the non-ferrous metal industry because the industrial waste, byproducts and scrap are the major materials for them. Also the setup of collection system for WEEE is an important condition for the recycling them. (2) For the effective usage of resources, the enterprises including producers and recyclers, play the decisive role in developing recycling technology. (3) For the low-carbon society, the CO<SUB>2</SUB> reduction by collection and recycling must become the target and the indicator. (4) As the public policy the support for the domestic recycling non- ferrous metal refinery as the important infrastructure for the recycling waste management.
出版者 ja 社団法人 資源・素材学会
日付
    Issued2010-05-25
言語
  • jpn
資源タイプ journal article
出版タイプ VoR
資源識別子 HDL http://hdl.handle.net/2115/51737
関連
  • isIdenticalTo DOI https://doi.org/10.2473/journalofmmij.126.166
収録誌情報
    • PISSN 1881-6118
    • NCID AA12188381
      • en Journal of MMIJ : journal of the Mining and Materials Processing Institute of Japan
      • 126 6 開始ページ166 終了ページ171
ファイル
コンテンツ更新日時 2023-07-26