Abstract
The adsorption equilibrium of seven chlorohydrocarbons in single- and multi-component aqueous solutions was investigated. The experimental data and theoretical analysis for the adsorption equilibria of chloroform (CHCl 3 ), carbon tetrachloride (CCl 4 ), 1,2-dichloroethane (12DCE), 1,1,2,2-tetra- chloroethane (S-TET), vinylidene chloride (VDC), trichloroethylene (TRI) and tetrachloroethylene (PER) onto DTO activated carbon from single- and multi- component aqueous solutions were presented. Correlation of the experimental data was performed for a single-component solution using the Langmuir and Freundlich equations. The composition of the mixture included all the above- mentioned chloro-derivatives. It was confirmed that the extent to which the component with a higher adsorp- tion affinity in the multi-component solution was adsorbed was not influenced by components having a lower affinity in the mixture, irrespective of their concentration. The experimental data for both single- and multi-component adsorption allowed the development of a method for calculating the adsorption from a multi-component solution that was then used to correlate the data. The results of adsorption from multi-component equilibria were also correlated using the Langmuir and the Freundlich- Langmuir equations extended for multi- component solutions.
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