Different from water and air pollution, the concealment of soil pollution is strong  The soil remediation technology that can be used in developed countries may not be applicable in our country  At present, soil in situ remediation technology based on extracellular respiration of microorganisms has become a new force in soil bioremediation technology in South China
The soil of developed countries is very different from that of China, and it is not suitable for soil in situ remediation technology.
 Compared with physical and chemical repair, this repair method has the characteristics of high efficiency, low cost, non-destructive, wide application and so on