Table 11.

Statistical error functions of estimated equilibrium isotherm nonlinear models for the biosorption process conducted on SPRBA 5% biosorbent.

Equilibrium Isotherm Model	Statistical Error Function
	RMSE	MPSD	HYBRID	Χ 2	R 2
Freundlich	0.5285	5.0164	3.0804	0.0901	0.9936
Temkin	0.7386	6.2446	5.5365	0.1646	0.9876
Hill	1.3477	18.2624	35.5931	0.6222	0.9587
Redlich–Peterson	0.3462	2.9609	1.5882	0.0315	0.9972
Sips	0.3447	3.1836	1.6884	0.0336	0.9972
Toth	1.9571	27.7742	79.9008	1.2840	0.9129