Compared to physical and chemical remediation, phytoremediation has many merits, such as lower cost, maintain the original structure of soil, less possible to cause secondary pollution.

In addition, given the urgency of the disposal project, the cycle of either the chemical or biological remediation method is too long and therefore ruled out.

The primary remediation technologies for perchlorate-contaminated water body fall into three categories:physical-chemical method, biological method and chemical method.