| Abstract |
| The adsorption of fluorescein dye onto granular activated carbon was investigated in aqueous solution in a batch system with respect to contact time, pH and temperature. Also effect of breakthrough characteristics such as initial concentrations, inlet flow rates and bed heights were evaluated in a packed column test. The adsorptivity of activated carbon for fluorescein were largely improved by acidic pH and higher temperature. When the pH was 3 at 30℃ in the sample, fluorescein could be removed 91 percent of initial concentration(10 mg/L. Freundlich adsorption models was applied to describe the equilibrium isotherms and the isotherm constants were also determined. The Freundlich model agrees with experimental data well from 30℃ to 60℃. The estimated values of K and β are 265.9~531.7, 0.420~0.491, respectively. The characteristics of breakthrough curve of activated carbon packed column, which depend on the design variables such as initial concentration, bed height, and flow rate, were studied. |
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| Key Words |
| Fluorescein, Activated Carbon, Adsorption, Dye Adsorption |
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