中文摘要：

本文运用静态吸附法,研究了包头尾矿库区土壤对稀土元素的吸附特征。实验结果表明,该地区土壤对稀土元素的等温吸附过程用Freundlich吸附方程描述最佳,该吸附属于非均相吸附;吸附动力学符合准2级动力学方程;吸附量随温度升高而增大,说明土壤对稀土元素的吸附是一吸热过程;吸附量随溶液p H的增加而增大;吸附也受溶液中共存阳离子的影响,其抑制土壤对稀土元素的吸附,影响为：Ca^2＋〉Fe^3＋〉Na^＋。

英文摘要：

In this paper,we researched the adsorption of rare earth elements by soil of tailings of Baotou using the static adsorptive method. The test results show that the isothermal adsorption process fellowed the Freundlich equation. The adsorption process belong to the heterogeneous adsorption. The adsorption process fellowed a pseudo- second order kinetics equations. The adsorption quantity increases with increases with temperature. It is a endothermic process. And the adsorption of rare earth elements by soil increases with increases in p H values. The adsorption was also affected by coexistence cationa in the solution,the effect capacities decreased in the order：Ca^2＋〉Fe^3＋〉Na^＋.