Figure 3

(a) The effect of adsorbent contents on the adsorption of Cs⁺ and Sr²⁺ at 1.5 mmol L⁻¹ initial Cs⁺ or Sr²⁺ concentration and different V/m ranging from 400 mL/g to 4000 mL/g. (b) Recycling of Na-TNBs in the ion exchange of Cs⁺ and Sr²⁺ at 1.5 mmol L⁻¹ initial Cs⁺ or Sr²⁺ concentration and V/m = 800 mL/g.