Nanoscale zero valent iron and bimetallic particles for contaminated site remediation
Nanoscale zero valent iron and bimetallic particles for contaminated site remediation
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DOI：
10.1016/j.advwatres.2012.02.005
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发表时间：
2013-01-01
影响因子：
4.7
通讯作者：
Kocur, Christopher
中科院分区：
文献类型：
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作者：
O'Carroll, Denis;Sleep, Brent;Kocur, Christopher
自20世纪90年代末以来，人们一直在研究纳米零价铁（nZVI）用于地下水修复的潜力，以减少地下污染物，如多氯联苯，氯化溶剂和重金属。由于其高反应性，nZVI在环境领域显示出巨大的前景，因此，已经进行了许多实验室和现场研究来评估其有效性。本文回顾了nZVI/双金属技术的当前知识，因为它与氯化溶剂和重金属的地下修复有关。该手稿提供了该技术的背景，总结了nZVI与氯化溶剂和金属的反应，并研究了影响nZVI反应性的因素。裸和涂层nZVI粒子的地下运输的研究也进行了审查和现场实施的挑战进行了讨论。本手稿对nZVI技术进行了全面回顾，并强调了优化其用于地下修复仍需开展的工作。(C)2012爱思唯尔有限公司保留所有权利。
Since the late 1990s, the use of nano zero valent iron (nZVI) for groundwater remediation has been investigated for its potential to reduce subsurface contaminants such as PCBs, chlorinated solvents, and heavy metals. nZVI shows tremendous promise in the environmental sector due to its high reactivity and as such, numerous laboratory and field studies have been performed to assess its effectiveness. This paper reviews the current knowledge of nZVI/bimetallic technology as it pertains to subsurface remediation of chlorinated solvents and heavy metals. The manuscript provides background on the technology, summarizing nZVI reactions with chlorinated solvents and metals, and examines the factors affecting nZVI reactivity. Studies on subsurface transport of bare and coated nZVI particles are also reviewed and challenges with field implementation are discussed. This manuscript offers a comprehensive review of nZVI technology and highlights the work still needed to optimize it for subsurface remediation. (C) 2012 Elsevier Ltd. All rights reserved.