含磷材料修复土壤铅污染研究进展

Research Progress in Remediation of Soil Lead Pollution with Phosphous-Containing Materials

土壤重金属污染是危害人类健康和食品安全的世界性问题。铅作为重点监控重金属之一,其毒性极强,危害植物和人类的健康。含磷材料通过钝化土壤中重金属铅,改变铅在土壤中的赋存形态降低其生物有效性,是一种有效的方法。由于其操作简单、价格低廉且修复效果好,含磷材料修复土壤铅污染被认为是目前最有效的措施。介绍了土壤重金属铅的污染、危害及发展趋势,重点对含磷物质的种类和修复效果、含磷材料固定铅的作用机理、影响因素进行分析,并提出展望,旨在为重金属铅污染的土壤修复提供参考。

Heavy metal contamination in soil is a worldwide problem that endangers human health and food safety. Lead, as one of the key monitoring heavy metals, is extremely toxic and harmful to plant and human health. It is an effective method for phosphorus containing materials to reduce the bioavailability of lead by passivating the heavy metal lead in soil and changing its occurrence form in soil. Because of its operation method, low cost and good remediation effect, phosphorus containing materials are considered to be the most effective measure to repair soil lead pollution. This paper introduces the pollution, harm and development trend of soil heavy metal lead, focusing on the type and remediation effect of phosphorus containing substances, the action mechanism of phosphorus containing materials, and puts forward the prospect. It aims to provide a reference for soil remediation caused by heavy metal lead pollution.