Measurement and Correlation of Adsorption Equilibria of Single Organic Solute from Dilute Aqueous Solution on Activated Carbon

Abstract

Adsorption equilibria of 15 single solutes (acetone, ethyl methyl ketone, pyridine, phenol, p-cresol, p-chlorophenol, p-nitrophenol, methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-methyl-1-propanol, 2-methyl-2-propanol and 1-pentanol) from dilute aqueous solutions on activated carbon were measured at 25°C and for concentrations up to 100-2500 mmol · dm^-3. The Radke-Prausnitz equation and the vacancy solution model were applied to correlate the present adsorption equilibrium data. It was found that they can correlate each isotherm within 2-3 % error.