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http://dx.doi.org/10.4491/KSEE.2011.33.8.606

Applicability of Theoretical Adsorption Models for Studies on Adsorption Properties of Adsorbents(1)  

Na, Choon-Ki (Department of Environmental Engineering, Mokpo National University)
Han, Moo-Young (Department of Civil and Environmental Engineering, Seoul National University)
Park, Hyun-Ju (Department of Civil and Environmental Engineering, Seoul National University)
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Abstract
The objectives of this study were to evaluate the applicability of adsorption models for adsorption properties of adsorbents. For this study, adsorption experiment of $NO_3^-$ ion using anion exchange resin has been investigated under adsorption equilibrium and kinetic in bach process. Adsorption equilibrium experiment were carried out that two conditions is change of adsorbate concentration and change of adsorbent weight. Experiment results have been analyzed by adsorption isotherm models, energy models and kinetic models. Under the condition of change of adsorbate concentration was best described by Sips and Redlich-Perterson isotherm models. However case of change of adsorbent weight was described by Langmuir isotherm models. It seems reasonable to assume that isotherm model was dominated by multiple mechanism according to experiment condition.
Keywords
Sorption Equilibrium; Sorption Isotherms; Anion Exchange; Nitrate Nitrogen;
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Times Cited By KSCI : 3  (Citation Analysis)
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