| Title |
Adsorption Characteristics of Chlorotharonil from Aqueous Solution by Fixed Bed of Activated Carbon |
| Authors |
강경희(Kyung Hee Kang), 이종집(Jong Jib Lee) |
| Abstract |
The adsorption characteristics of Chlorotharonil on granular activated carbon were experimentally investigated in an adsorber and in a packed column. It was estabilished that the adsorption equilibrium of Chlorotharonil on granular activated carbon was more successfully fitted by Freundlich isotherm equation than Langmuir isotherm equation in the concentration range from 1 to 1000㎎/l. Intraparticle diffusivities(pore and surface diffusivity) of Chlorotharonil were estimated by the concentration-time curve and adsorption isotherm. The estimated values of pore diffusivity and surface diffusivity are 9.30×10^(-6) and 2.21×10^(-9)㎠/s, respectively. From comparison of intraparticle diffusivities, it was found that surface diffusion was the limiting step for adsorption rate. The break time and breakthrough curve predicted by constant pattern-linear driving force model were shown to agree with the experimental results. |