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首页> 外文期刊>Environmental Science & Technology >life-Cycle Case Study Comparison of Permeable Reactive Barrier versus Pump-and-Treat Remediation
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life-Cycle Case Study Comparison of Permeable Reactive Barrier versus Pump-and-Treat Remediation

机译：渗透反应性屏障与泵处理修复的生命周期案例研究比较

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摘要

A permeable reactive barrier (PR8) is a passive remediation technology, which over decades of use, may reduce lifetime environmental impacts when compared with a conventional pump-and-treat system (PTS). Greater material production requirements to install PRBs may offset the expected reductions in operational phase impacts and the trade-offs can be investigated in a life-cycle assessment (LCA|. The life-cycle environmental impacts of a zerovalent iron (ZVI) containing PRB with a funnel and gate configuration and a PTS were compared in a case study. Potential impacts of the model PRB are driven by the ZVI reactive medium and the energy usage during construction, while for the PTS they are driven by the operational energy demand. Medium longevity governed the magnitude of the potential PRB impacts and the extent to which it was optimal relative to the PTS. Even at conservatively low estimates of longevity, the PRB offers significant environmental advantages in impact categories of human health and ozone depletion. The minimum ZVI longevity for PRB benefit over the PTS system in all impact categories was 10 years. Suggested PRB design innovations to reduce environmental impacts include the development of alternative reactive media and construction methods.
机译：渗透性反应屏障（PR8）是一种被动修复技术，与常规的泵处理系统（PTS）相比，在数十年的使用中，它可以减少使用寿命对环境的影响。安装PRB的更高的材料生产要求可能会抵消运营阶段影响的预期减少，并且可以在生命周期评估中进行权衡取舍（LCA |。含PRB的零价铁（ZVI）的生命周期对环境的影响）在一个案例研究中比较了一个漏斗和浇口的配置以及一个PTS，PRB模型的潜在影响是由ZVI反应介质和施工期间的能源消耗驱动的，而对于PTS，它们是由运行能量需求驱动的。控制着潜在的PRB影响的程度以及相对于PTS的最佳程度。即使保守地估计了较低的寿命，PRB在人类健康和臭氧消耗的影响类别中仍具有显着的环境优势。在所有影响类别中，PRB相对于PTS系统的收益为10年。建议减少环境影响的PRB设计创新包括：开发替代性反应介质和构造方法。

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  • 来源
    《Environmental Science & Technology》 |2009年第24期|9432-9438|共7页
  • 作者

    MONICA R. HIGGINS; TERESE M. OLSON;

  • 作者单位

    Department of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan 48109;

    Department of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan 48109;

  • 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);
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  • 正文语种 eng
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