Abstract:
With the development of the nuclear industry, heavy metal uranium emissions and diffusion induced uranium contamination of local surface soils, which has taken some impact on society and environment. Due to the special particularities of uranium and the complexity of components in soil, how to remedy U-contaminated soils becomes an interesting problem in recent years. On the basis of present the domestic and foreign researches, this paper reviews the uranium speciation characteristics in soils, the concept of phytoremediation and electrokinetic remediation, current international research. Restricting factors, advantages and limitations, and the future trends, complementary were discussed too. Phytoremediation is fit for large-scale and low-level uranium contaminated soils, while electrokinetic-remediation can be used for higher uranium concentration, bad environment and deep uranium contaminated soils. Combining phytoremediation and electrokinetic remediation is good for remediation of soil contaminated with uranium. The combination of the two technologies may bring some hopes to solve this problem.