The environmental safety of soil ha

The environmental safety of soil has become severe in China with the boost of industrialization and urbanization. In
this paper, on the basis of investigating the status of soil contaminated in China, the remediation technologies of soil
contaminated by heavy metals, including physical remediation, chemical remediation and biological remediation
were focused. The mechanisms of remediation, strengths and drawbacks, developing trend were reviewed in order to
supply reference to the study in this field.