土壤重金属污染修复技术初探

Initial Result of Remediation Technology of Heavy Metal Pollution in Soil

主要从物理、化学和生物3个角度论述土壤重金属污染修复技术。研究表明,物理修复法耗资大,易破坏土壤结构,仅适用小规模土壤污染;化学修复法不彻底,易二次污染,需设备复杂,高科技水平;生物修复法经济、环保、具美学价值、生态价值。最后指出未来应大力发展联合修复措施,从细胞、分子水平解决土壤重金属污染问题。

This paper mainly described remediation technology of the heavy metal contaminated soil from three aspects of physical, chemical and biological. Physical remediation is easy to destroy soil structure and only suitable for small scale soil pollution, the cost of which is expensive. Chemical remediation method is not complete, which brings about secondary pollution easily as well as needs complex equipment and high level of scientific research. Bioremediation is economy, environmental protection which has ecological value and aesthetic value. The paper pointed out we should vigorously develop combined remediation, solve the problem of soil heavy metal pollution from cell and molecular levels.