Phytoremediation of radium contaminated soils: recent advances and prospects

IF 1.4 3区 化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR
Jianlong Wang, Can Chen
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Abstract

Radioactive radium (Ra) mainly comes from the mining and milling of uranium and other metal or non-metal mines, phosphate production and fertilizer use, production of oil and gas, coal combustion, wastewater treatment, and various wastes from the above activities, which is ubiquitous in the environment. Phytoremediation is a green and cheap remediation technology for metal/radionuclide-contaminated sites. Radium is often of particular interest and there are many literatures on parameters of Ra concentration in plants and transfer factors from soil to plant from a radiological impact assessment point of view. However, review articles on phytoremediation of Ra-polluted soil are relatively few. This review focused on radium-polluted soil phytoremediation, involving two main strategies of phytoextraction and phytostabilization, which covered the potential (hyper)accumulators for Ra, characteristics of Ra uptake from soil by plants, influencing factors, and phytostabilization application. In future research works, more attention should be paid to the deep insights and mechanism researches of Ra uptake/immobilization by plants. This review will deepen the understanding of the relationship of radium-soil-plants, and to enhance the potential application of phytoremediation as an alternative treatment technology for remediation of Ra-polluted soil site.
镭污染土壤的植物修复:最新进展与前景
放射性镭(Ra)主要来自铀和其他金属或非金属矿的开采和研磨、磷酸盐生产和化肥使用、石油和天然气生产、煤炭燃烧、废水处理以及上述活动产生的各种废物,在环境中无处不在。植物修复是一种针对金属/放射性核素污染场地的绿色、廉价修复技术。从辐射影响评估的角度来看,植物中的镭浓度参数以及从土壤到植物的转移因子往往是人们特别关注的问题。然而,有关镭污染土壤植物修复的综述文章相对较少。本综述侧重于镭污染土壤的植物修复,涉及植物萃取和植物稳定两大策略,内容包括镭的潜在(超)积累体、植物从土壤中吸收镭的特征、影响因素以及植物稳定的应用。在今后的研究工作中,应更多关注植物对镭的吸收/固定的深刻见解和机理研究。本综述将加深对镭-土壤-植物关系的理解,并提高植物修复作为镭污染土壤修复的替代处理技术的应用潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Radiochimica Acta
Radiochimica Acta 化学-核科学技术
CiteScore
2.90
自引率
16.70%
发文量
78
审稿时长
6 months
期刊介绍: Radiochimica Acta publishes manuscripts encompassing chemical aspects of nuclear science and technology.
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