摘要
Transport of nonreactive (tritium, HTO) and anion radionuclides through two columns with different diameters was experimentally and mathematically examined for three inflow rates. One-dimensional advective–dispersive experiments were effectively designed to investigate radionuclide transport through a numerical calibration/validation nonequilibrium model. The two columns were filled with crushed granite, and transport of HTO and two iodine species—iodate (IO
3
−
) and iodide (I
−
)—through them was studied to obtain breakthrough curves for a water-saturated condition. The significance of I
−
was found in the smaller column for an input flow rate of 5 mL/min. The accelerated transport of I
−
may have resulted from anion exclusion, and its relatively stronger Coulomb repulsive force was probably because of its smaller hydration radius than IO
3
−
.