Adsorption Characteristics and Transport Behavior of Cr(VI) in Shallow Aquifers Surrounding a Chromium Ore Processing Residue (COPR) Dumpsite

Table 3

Thermodynamic parameters for Cr(VI) adsorption in different aquifers.

Aquifers	Temperature (K)	ΔG^θ (kJ/mol)	ΔH^θ (kJ/mol)	ΔS^θ (J/mol·K)
Clay	288	−0.79	7.30	28.08
	298	−1.07
	308	−1.35
Silty clay	288	−0.05	16.00	55.73
	298	−0.60
	308	−1.16
Silt	288	−0.02	18.38	62.39
	298	−0.22
	308	−0.84