Table 2. Thermodynamics parameters for the adsorption of Cd on different components in the presence of 0.01 mol/L KNO₃ at pH 5 and 28 °C.

	K (L/mol)	ΔG (kJ/mol)	ΔH(kJ/mol)	ΔS (J/mol/K)	R2
Mont	0.010	−5.8	−10.2	−14.7	0.995
Bacteria	0.025	−9.2	24.9	114.4	0.987
Mont-bacteria	0.016	−10.3	10.2	68.1	0.962
Mont-HA	0.012	−11.06	−8.1	9.8	0.952
Mont-HA-bacteria	0.020	−9.8	20.2	99.6	0.974