Initial Result of Remediation Technology of Heavy Metal Pollution in Soil

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 cornbined remediation,solve the problem of soil heavy metal pollution from cell and molecular levels.