Parameters extracted from the kinetic model fitting of all data sets.

Model	Parameter	MR			MO			OG
		DI water	0.01 M NaCl	0.01 M CaCl2	DI water	0.01 M NaCl	0.01 M CaCl2	DI water	0.01 M NaCl	0.01 M CaCl2
PFO	Q e (mg g−1)	61.5646	64.1478	68.9024	12.2897	33.6508	37.7155	1.1527	1.5262	13.5683
	k 1 (h−1)	0.1225	0.2218	0.9649	0.0610	0.0287	0.1893	0.5456	0.9532	0.0488
	R 2	0.7874	0.7982	0.8927	0.9453	0.9252	0.601	0.4762	0.5716	0.8308
PSO	Q e (mg g−1)	69.2133	69.6761	72.2903	14.7035	43.4233	42.0975	1.2225	1.6099	15.7833
	k 2 (g (mg h)−1)	0.0023	0.0046	0.0228	0.0046	0.0006	0.0058	0.7082	0.9142	0.0039
	R 2	0.8849	0.9046	0.9697	0.9764	0.9417	0.7475	0.4883	0.5932	0.8871
ID	k p mg (g h)−1/2	6.3752	5.8562	3.9739	1.3899	3.3372	3.8885	0.0774	0.1086	1.4311
	C (mg g−1)	15.2931	24.3277	45.1883	0.9884	0.2941	11.7851	0.6582	0.9043	1.2885
	R 2	0.9497	0.8547	0.4471	0.9781	0.9919	0.9142	0.2449	0.4065	0.9817