gholamreza Abdi

Materials and Methods: In this laboratory study, the role of each matrix of clay, animal manure, and anionic surfactant sodium dodecyl sulfate and non-ionic Tween 80 with the cultivation of Prosopis Cineraria tree were examined and analyzed separately and combined in the removal of pyrene and cadmium in concentrations of 50 to 200 mg/Kg, in the period of one to three months. The samples were analyzed by gas chromatography and atomic absorption. The final data was analyzed using Excel software. Results: In the current study, the concentration of pyrene and cadmium in clay containing surfactant and animal manure decreased with time in the phytoremediation process with the help of the Prosopis Cineraria tree. By increasing the concentration of pyrene from 50 to 200 mg/kg, the maximum efficiency of pyrene removal was obtained between 85.43 and 57.55% and with the increase of cadmium concentration from 50 to 100 mg/kg, the maximum efficiency of cadmium removal was obtained between 83.68 and 67.80% at the end of the third month. Conclusion: The results of the present study showed that among the various enhancers, clay soils containing animal manure and surfactants significantly increase the remediation of soils contaminated with cadmium and pyrene by plant remediation.