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Table 3

Kinetic models parameters and correlation coefficients for phosphorus adsorption on nZVI/AC particles at different initial concentrations

Initial Conc. (mg/L)	q_e,exp. (mg/g)	Pseudo-first-order	Pseudo-second-order	Elovich equation	Initial Conc.	q_e,exp. (mg/g)	Pseudo-first-order	Pseudo-second-order	Elovich equation	Initial Conc.
Initial Conc. (mg/L)	q_e,exp. (mg/g)	K₁ (1/h)	q_e,cal. (mg/g)	R²	(mg/L)		K₁ (1/h)	q_e,cal. (mg/g)	R²	(mg/L)
50	39.66	1.1139	11.03	0.9591	0.214	40.49	350.77	1	30,182.5	0.2559
40	33.58	1.0617	11.94	0.9934	0.227	34.48	269.92	0.9999	1,1296.81	0.2784
30	28.32	0.8759	10.04	0.9872	0.238	28.99	199.96	0.9997	9,240.31	0.3332
20	18.96	1.3632	4.71	0.9581	0.502	19.72	195.28	0.9995	9,218.84	0.4731

Initial Conc. (mg/L)	q_e,exp. (mg/g)	Pseudo-first-order	Pseudo-second-order	Elovich equation	Initial Conc.	q_e,exp. (mg/g)	Pseudo-first-order	Pseudo-second-order	Elovich equation	Initial Conc.
Initial Conc. (mg/L)	q_e,exp. (mg/g)	K₁ (1/h)	q_e,cal. (mg/g)	R²	(mg/L)		K₁ (1/h)	q_e,cal. (mg/g)	R²	(mg/L)
50	39.66	1.1139	11.03	0.9591	0.214	40.49	350.77	1	30,182.5	0.2559
40	33.58	1.0617	11.94	0.9934	0.227	34.48	269.92	0.9999	1,1296.81	0.2784
30	28.32	0.8759	10.04	0.9872	0.238	28.99	199.96	0.9997	9,240.31	0.3332
20	18.96	1.3632	4.71	0.9581	0.502	19.72	195.28	0.9995	9,218.84	0.4731