Fig. 11

Diagram of the breakthrough curve of Ce(III) in fixed-bed column from aqueous solution. (Flow rate 0.96 mL min⁻¹, height of column 6 cm, diameter of column 1.2 cm, H₂SO₄ concentration 0.6 M, initial Ce(III) concentration 50 mg L⁻¹, temperature 25 °C).