The adsorption characteristics of Eu(III) on colloidal bentonite particles were investigated by batch experiments as functions of colloid concentration, pH, foreign ions, and temperature. Bentonite colloids displayed remarkable adsorption ability to Eu(III), the Eu(III) adsorption was significantly affected by solution chemistry. The Eu(III) adsorption increased with colloids concentration and pH increasing. Divalent cations (Ca²⁺, Mg²⁺ and Sr²⁺) and anions (Cl⁻ and SO₄²⁻) inhibited Eu(III) adsorption, whereas PO₄³⁻ greatly enhanced Eu(III) adsorption. High temperature was beneficial for Eu(III) adsorption, the adsorption process was a spontaneous endothermic process. The results suggested that colloids could acted as an efficient carrier for Eu(III) transport.

通过批量实验研究了 Eu(III) 在胶体膨润土颗粒上的吸附特性，作为胶体浓度、pH、外来离子和温度的函数。膨润土胶体对Eu(III)表现出显着的吸附能力，Eu(III)的吸附受溶液化学性质的影响显着。Eu(III) 吸附量随着胶体浓度和 pH 值的增加而增加。二价阳离子（Ca ²⁺、Mg ²⁺和 Sr ²⁺）和阴离子（Cl ^-和 SO ₄ ^2-）抑制 Eu(III) 吸附，而 PO ₄ ^3-大大增强了 Eu(III) 的吸附。高温有利于Eu(III)的吸附，吸附过程为自发吸热过程。结果表明，胶体可以作为 Eu(III) 传输的有效载体。