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Material flow-based economic assessment of landfill mining processes

机译：基于物料流的垃圾填埋场采矿过程经济评估

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摘要

This paper provides an economic assessment of alternative processes for landfill mining compared to landfill aftercare with the goal of assisting landfill operators with the decision to choose between the two alternatives. A material flow-based assessment approach is developed and applied to a landfill in Germany. In addition to landfill aftercare, six alternative landfill mining processes are considered. These range from simple approaches where most of the material is incinerated or landfilled again to sophisticated technology combinations that allow for recovering highly differentiated products such as metals, plastics, glass, recycling sand, and gravel. For the alternatives, the net present value of all relevant cash flows associated with plant installation and operation, supply, recycling, and disposal of material flows, recovery of land and landfill airspace, as well as landfill closure and aftercare is computed with an extensive sensitivity analyses. The economic performance of landfill mining processes is found to be significantly influenced by the prices of thermal treatment (waste incineration as well as refuse-derived fuels incineration plant) and recovered land or airspace. The results indicate that the simple process alternatives have the highest economic potential, which contradicts the aim of recovering most of the resources.
机译：本文提供了与填埋场善后处理相比的填埋场采矿替代过程的经济评估，目的是帮助填埋场运营商决定在两种替代方案之间进行选择。在德国，开发了一种基于物料流的评估方法并将其应用于垃圾填埋场。除了进行垃圾掩埋后处理外，还考虑了六种替代性垃圾掩埋采矿工艺。这些范围从简单的方法（大多数材料被再次焚化或填埋）到复杂的技术组合，可以回收高度差异化的产品，例如金属，塑料，玻璃，回收砂和砾石。对于替代方案，与工厂安装和运营，物料流的供应，回收和处置，土地和垃圾填埋空域的回收以及垃圾填埋场的关闭和善后处理相关的所有相关现金流量的净现值，在计算时应具有很高的敏感性。分析。发现垃圾填埋场采矿过程的经济绩效受到热处理（垃圾焚烧以及垃圾衍生燃料焚烧厂）和回收土地或领空价格的显着影响。结果表明，简单的工艺替代方法具有最高的经济潜力，这与回收大多数资源的目的相矛盾。

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  • 来源
    《Waste Management》 |2017年第2期|748-764|共17页
  • 作者

    Karsten Kieckhaefer; Anna Breitenstein; Thomas S. Spengler;

  • 作者单位

    Technische Universitaet Braunschweig, Institute for Automotive Management and Industrial Production, Production and Logistics, Muehlenpfordtstr. 23, 38106 Braunschweig, Germany;

    Technische Universitaet Braunschweig, Institute for Automotive Management and Industrial Production, Production and Logistics, Muehlenpfordtstr. 23, 38106 Braunschweig, Germany;

    Technische Universitaet Braunschweig, Institute for Automotive Management and Industrial Production, Production and Logistics, Muehlenpfordtstr. 23, 38106 Braunschweig, Germany;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Enhanced landfill mining; Process alternatives; Economic assessment; Resource recovery; Case study;

    机译：加强垃圾掩埋开采;工艺替代品;经济评估;资源回收;案例分析;

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