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首页> 外文期刊>Environmental Science & Technology >MaTrace: Tracing the Fate of Materials over Time and Across Products in Open-Loop Recycling
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MaTrace: Tracing the Fate of Materials over Time and Across Products in Open-Loop Recycling

机译：MaTrace：在开放式循环中追踪随着时间推移以及跨产品的材料命运

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摘要

Even for metals, open-loop recycling is more common than closed-loop recycling due, among other factors, to the degradation of quality in the end-of-life (EoL) phase. Open-loop recycling is subject to loss of functionality of original materials, dissipation in forms that are difficult to recover, and recovered metals might need dilution with primary metals to meet quality requirements. Sustainable management of metal resources calls for the minimization of these losses. Imperative to this is quantitative tracking of the fate of materials across different stages, products, and losses. A new input-output analysis (IO) based model of dynamic material flow analysis (MFA) is presented that can trace the fate of materials over time and across products in open-loop recycling taking explicit consideration of losses and the quality of scrap into account Application to car steel recovered from EoL vehicles (ELV) showed that after 50 years around 80% of the steel is used in products, mostly buildings and civil engineering (infrastructure), with the rest mostly resided in unrecovered obsolete infrastructure and refinery losses. Sensitivity analysis was conducted to evaluate the effects of changes in product lifespan, and the quality of scrap.
机译：即使对于金属，由于寿命终止（EoL）阶段质量下降等原因，开环再循环比闭环再循环更为普遍。开环回收会遭受原始材料功能丧失，以难以回收的形式散失的影响，回收的金属可能需要用原始金属稀释才能满足质量要求。金属资源的可持续管理要求将这些损失降至最低。为此，必须对不同阶段，产品和损失的材料的命运进行定量跟踪。提出了一种新的基于投入产出分析（IO）的动态物料流分析（MFA）模型，该模型可以在明确考虑损失和废料质量的情况下跟踪开环循环中随时间推移以及跨产品的物料命运在从EoL车辆（ELV）回收的汽车钢中的应用表明，在50年后，大约80％的钢用于产品，主要用于建筑和土木工程（基础设施），其余大部分用于未回收的陈旧基础设施和炼油厂损失。进行了敏感性分析，以评估产品寿命变化和废料质量的影响。

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  • 来源
    《Environmental Science & Technology》 |2014年第13期|7207-7214|共8页
  • 作者

    Shinichiro Nakamura; Yasushi Kondo; Shigemi Kagawa; Kazuyo Matsubae; Kenichi Nakajima; Tetsuya Nagasaka;

  • 作者单位

    Graduate School of Economics, Waseda University, Tokyo, Japan;

    Graduate School of Economics, Waseda University, Tokyo, Japan;

    Graduate School of Economics, Kyushu University, Fukuoka, Japan;

    Graduate School of Engineering, Tohoku University, Sendai, Japan;

    Center for Material Cycles and Waste Management Research, National Institute for Environmental Studies, Tsukuba, Japan;

    Graduate School of Engineering, Tohoku University, Sendai, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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