【摘要】 铀矿的采选过程中必然会产生大量的尾矿与废料,其是环境中铀污染土壤的主要来源,同时核试验与核反应堆的运行也是铀在环境中产生污染的重要途径。铀尾矿库中重金属铀在地表径流和地下径流作用下,进入尾矿库周围土壤,造成了大面积低剂量的铀污染土壤,同时重金属铀还能通过生物圈进入食物链,最终危害人体健康。因此,铀污染土壤必需尽快治理。植物修复技术由于其与传统的修复方法相比,具有成本低廉、工作量小、对环境扰动小、绿色环保等优势,因此其可作为修复铀污染土壤的一种比较合适的技术。更多还原

【Abstract】 Uranium mining and processing will inevitably produce large amounts of uranium tailing and waste, which is a major source of environmental uranium contaminated soil. Meanwhile, nuclear testing and nuclear reactors operating are also the important way to produce uranium contamination in the environment. The surrounding soil of uranium mill tailings impoundment can be contaminated by uranium in uranium tailing, and it is a large area of low concentration. The uranium can also enter the food chain through the biosphere, and ultimately damage to human health. Therefore, uranium contaminated soil have to remediate as soon as possible. Phytoremediation has been widely accepted compared to the conventional remediation technologies, because it is a cost-effective, minimal disruption for the environment,safe and "green" remediation method. Therefore, The method can be used for remediation of uranium contaminated soil.更多还原