Evaluation of Remediation of Coupled Electro Kinetic and Phytoremediation of Depleted Uranium Contaminated Soils.

DU metal used for civil or military purpose reacts with water, undergoes radiolysis, dissolves and contaminates soil and ground water. There are many factors influencing the remediation of depleted uranium contaminated soils with plants. Several aspects were discussed in this paper. Such as electrokinetic field and amendments including organic acid and other soil amendments (organic fertilizer, phosphate fertilizer). The plants were planted for 55 days in the both field and spiked depleted U-contaminated. The samples were analysed using an inductively-coupled plasma atomic emission spectrometer (ICP-AES). The results showed that organic acid (citric acids, malic acids, humic acids) could increase depleted uranium concentration of shoot of sunflower. Soil amendments (organic fertilizer, phosphate fertilizer) could adjust depleted uranium concentration of shoot of sunflower. These results will be helpful to improve phytoremediation technology of contaminated soils.