With the development of civil electronic products more and delicate, as a carrier plate of theproducts of the PCB are also more and more sophisticated, more and more fine lines

PCB is a widely used value of chlorinated aromatic hydrocarbons by a group of one or morechlorine atoms replace the hydrogen atoms in a molecule of benzene and the formation of the.

According to the different way of hydrogen atoms in the molecule of biphenyl substituted by chlorine, PCB has 209 homologue. PCB in the natural environment it is difficult to degradationby soil gas etc, can transfer vector, in a human or animal savings, not only has carcinogenic,teratogenic, mutagenic properties of organisms, but also endocrine disruption, pose a serious threat to human survival and sustainable development.

In recent years, the research about the method of remediation of PCB contaminated soil has been the hotspot and difficulty in the academic circles. Method physical, chemical and biological were used to repair the PCB pollution research point. Bioremediation technology because of have to repair the low cost, can completely remove the pollutants, will not causepollution to the environment characteristics of two times as an economical environmental remediation technology is widely accepted.