Materials	Experimental parameters		Pseudo-first-order kinetic model			Pseudo-second-order kinetic model			Intra-particle diffusion model
Materials	C_o (mg/L)	q_e_exp (mg/g)	q_e _cal (mg/g)	K₁ (h⁻¹)	R	q_e _cal (mg/g)	K₂	R	K_d (mg/h^1/2g)	C	R
Laterite	1	0.034	0.001	0.107	0.422	0.031	1809.901	0.998	0.001	0.028	0.725
	5	0.076	0.005	0.059	0.322	0.073	262.424	0.998	0.003	0.060	0.673
	10	0.219	0.028	0.039	0.219	0.199	172.932	0.998	0.013	0.151	0.757
Sandstone	1	0.022	0.001	0.049	0.277	0.022	1331.689	0.999	0.0006	0.020	0.635
	5	0.050	0.003	0.103	0.534	0.050	203.402	0.999	0.002	0.040	0.769
	10	0.144	0.019	0.034	0.243	0.133	47.420	0.998	0.009	0.098	0.673
Shale	1	0.010	0.002	0.092	0.592	0.009	355.900	0.997	0.0008	0.006	0.837
	5	0.020	0.002	0.073	0.277	0.017	240.955	0.992	0.001	0.014	0.672
	10	0.056	0016	0.092	0.643	0.053	40.896	0.998	0.005	0.030	0.901