Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Prague 6 - Suchdol 165 21, Czech Republic.
Environ Pollut. 2013 Jan;172:9-22. doi: 10.1016/j.envpol.2012.07.045. Epub 2012 Sep 13.
Oxides and their precursors have been extensively studied, either singly or in combination with other amendments promoting sorption, for in situ stabilization of metals and As in contaminated soils. This remediation option aims at reducing the available fraction of metal(loid)s, notably in the root zone, and thus lowering the risks associated with their leaching, ecotoxicity, plant uptake and human exposure. This review summarizes literature data on mechanisms involved in the immobilization process and presents results from laboratory and field experiments, including the subsequent influence on higher plants and aided phytostabilization. Despite the partial successes in the field, recent knowledge highlights the importance of long-term and large-scale field studies evaluating the stability of the oxide-based amendments in the treated soils and their efficiency in the long-term.
氧化物及其前体已被广泛研究，无论是单独使用还是与其他促进吸附的改良剂一起使用，都可以用于原位稳定污染土壤中的金属和砷。这种修复方法旨在减少金属（类金属）的有效部分，特别是在根区，从而降低与它们的淋溶、生态毒性、植物吸收和人类暴露相关的风险。本综述总结了有关固定化过程所涉及机制的文献数据，并介绍了实验室和现场试验的结果，包括对高等植物的后续影响和辅助植物稳定化。尽管在现场取得了部分成功，但最近的知识强调了进行长期和大规模现场研究的重要性，以评估处理土壤中基于氧化物的改良剂的稳定性及其长期效率。
