Parameters of the fixed bed column for Cs⁺ removal by PB/PU sponges under different conditions^a.

Adsorbent	Experimental conditions			Experimental parameters of breakthrough curves
	C 0 (mg L−1)	v (mL min−1)	H (cm)	t b (h)	t s (h)	V eff (mL)	q b (mg g−1)	q s (mg g−1)	R total (%)
PB@PUS-1	10	3	10	9	32	5760	15.4	32.2	55.9
PB@PUS-2	10	3	10	18	47	8460	30.8	51.8	61.2
PB@PUS-3	10	3	10	28.5	52	9360	48.6	67.0	71.6
PB@PUS-2	20	3	10	8	24	4320	27.4	49.2	57.0
PB@PUS-2	30	3	10	5	17	3060	25.1	50.6	55.2
PB@PUS-2	10	4	10	12.5	35	8400	28.5	50.3	59.9
PB@PUS-2	10	5	10	9.5	27	8100	26.8	48.9	58.1

^a C ₀ = influent concentration (mg L⁻¹), v = flow rate (mL min⁻¹), H = bed height (cm), t_b = breakthrough time (h), t_s = saturation time (h), V_eff = effluent volume (mL), q_b = adsorption at breakthrough (mg g⁻¹), q_s = adsorption at saturation (mg g⁻¹), R_total = total cesium removal at saturation (%).