Studies of Adsorption of Heavy Metals onto Spent Coffee Ground: Equilibrium, Regeneration, and Dynamic Performance in a Fixed-Bed Column

Table 2

Parameters and error values of the ion-exchange multicomponent model for the adsorption of heavy metals onto SCG.

Parameters	Cd^2+	Cu^2+	Pb^2+
(mmol/g)	0.12	0.23	0.32
	2.88	4.78	12.00
	1.62	4.52	7.00
MSE (×10^5)	9.10	17.00	37.50

MSE: mean squared error.