云南某铅锌污染场地修复研究

Study on Restoration of Polluted Land by Lead and Zinc in Yunnan

土壤是生态环境的重要组成部分,也是人类赖以生存的主要自然资源^([1])。随着我国产业结构调整及城市建设进程的加快,导致大量搬迁企业遗留的污染场地引发很多的环境问题。选用三种不同类型的钝化剂对云南某铅锌污染场地土壤进行修复研究,结果表明:药剂A、B、C对土壤铅、锌、镉的钝化效果显著,但药剂B、C均会造成土壤中砷的活性释放。药剂A的钝化能力更全面,效果更好。为安全有效地治理重金属污染场地提供技术指导^([2])。

Soil is one of the significant components of eco-system. It is also the important natural resource for human life. Many soil pollution issues were emerging due to the moving of industrial factories with the rapid development of urbanization and national industrial adjustment. Three kinds of passivators (A, B and C) were used to restore a piece of polluted land by lead and zinc in Yunnan. The results indicated that the passivators had obvious passivation effects. However, B and C would actively release the arsenic in soil. Therefore, A had the better effect with more safety. The study would provide technological references for effectively restoring the heavy-metal polluted land.