Review of stabilization/solidification technique for remediation of heavy metals contaminated lands
Review of stabilization/solidification technique for remediation of heavy metals contaminated lands
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DOI：
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发表时间：
2011
影响因子：
1.5
通讯作者：
Du Yanjun;Jing Fei;Liu Songyu;Chen Lei;Z. Fan
中科院分区：
文献类型：
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作者：
Du Yanjun;Jing Fei;Liu Songyu;Chen Lei;Z. Fan
近年来，利用石灰、水泥等粘结剂对重金属污染土壤进行稳定固化已被广泛应用于环境岩土工程实践中。本文在文献研究的基础上，对重金属-土壤-胶结料相互作用机理进行了综述。比较和讨论了固化HMCS的各种浸出试验标准的性能。介绍了固化/固化重金属污染土的无侧限抗压强度特性及其影响因素。综述了国内外对HMCS的浸出性能、耐久性和长期性能的研究。最后，基于我国目前的研究现状，建议制定HMCS的最低强度要求，并建立动态淋溶试验规范作为污染土地修复的评价标准。
Recently, stabilization/solidification of heavy metals contaminated soils (HMCS) using lime, cement, and other binders has been widely adopted in geoenvironmental engineering practice. In this paper, the mechanisms of heavy metal-soil-binder interaction are overviewed based on literature studies. The performance of various leaching test standards for solidified HMCS is compared and discussed. The unconfined compression strength properties and influencing factors of solidified/stabilized heavy metal contaminated soils are also presented. The leaching properties, durability and long-term performance of HMCS from domestic and international studies are summarized. Finally, based on the current studies in China, it is suggested that the minimum strength requirement of HMCS should be given; and test specification of dynamic leaching tests should be built as the assessment criteria of contaminated lands remediation.