Ke Chen, Jun Zhu, Qiulan Zhang, Jingli Shao, Yali Cui, Aiming Zhang, Tian Xie
Americium(III) (Am(III)) in the natural environment is considered immobile due to its low solubility, strong adsorption, and high affinity to solid surfaces. However, the presence of natural colloids may carry Am(III) transport for long distance. The individual and co-transport behaviors of Am(III) and natural colloids through the unsaturated packed columns were investigated under the influence of pH, electrolyte concentration, velocity, Am(III) concentration and natural colloids concentration. Under all experimental conditions, Am(III) individual transport construct sight breakthrough curves (BTCs, CAm /C0 < 3%), but the presence of natural colloids increased the BTCs plateau of Am(III) significantly (30% < CAm /C0 < 80%), indicating that the colloids were able to promote Am(III) transport in the unsaturated porous media...
April 17, 2024: Environmental Pollution