Method of increasing gesarex polluted soil phyto remediation efficiency

Abstract

The invention provides a method for improving the plant-based recovery efficiency of dichlorodiphenyl trichloroethane (DDT)-polluted soil. The method is to promote mycorrhiza of clover and add chemical surfactant to recover the DDT-polluted soil with the joint function of uromyces striatus schroter and the surfactant. The steps of the method include that an inoculant layer is inoculated in a culture medium; mycorrhiza is carried out to the clover and that the sprouted clover is planted in the DDT-polluted soil and the surfactant TritonX-100 is added to the soil. The joint effect of the mycorrhiza and the surfactant can remarkably improve the resistance of plants to the DDT, reduce the concentration of the DDT in the soil and have evident plant-based recovery efficiency of the DDT-polluted soil. The method of the invention can be used for reference for the recovery of the soil polluted by other organic matters.

Description

technical field

[0001] The invention relates to pollution ecological restoration technology, in particular to a phytoremediation method for DDT-contaminated soil through the combined action of mycorrhizae and surfactants. Background technique

[0002] The pesticide DDT and its metabolites are typical persistent pollutants (POPs). Due to its persistence and potential threat to human health, it has attracted more and more attention. The DDT remaining in the soil not only affects the normal function of the soil and reduces the quality of the soil environment, but also can enter the food chain through bioaccumulation and endanger human health. Therefore, the removal of DDT in soil and the remediation of polluted soil have become an important research topic in the field of soil environment research.

[0003] Phytoremediation is a way to repair soil by using the growth of plants to absorb, transform and transfer pollutants, and to promote the degradation and mineralization of po...

Images