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KMID : 1024519980070040541
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Journal of the Environmental Sciences
1998 Volume.7 No. 4 p.541 ~ p.548
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Removal of Phenols by Granular Activated Carbon in Aqueous Solution
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Kweon Seong-Heon
Kang Won-Seok
Kim In-Sil
Park Pan-Wook
Yoon Young-Sam
Jeong Yong-Ok
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Abstract
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Aqueous phase adsorption of phenols by granular activated carbon was studied in a batch adsorption vessel. Adsorption Isotherms of phenol(Ph), p-chlorophenol(PCP) and p-nitrophenol (PNP) from aqueous solution on granular activated carbon have been obtained. The experimental data were analyzed by the surface and pore diffusion models. Both models could be applied to predict the adsorption phenomena. However, the pore diffusion model was slightly better than the surface diffusion model In representing the experimental data for the initial concentration changes. Therefore, the pore diffusion model was used to predict the change of operating variables such as the agitation speed and Particle size of adsorbent which have influence on the film resistance and intraparticle diffusion.
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KEYWORD
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Adsorption Isotherms, Batch Adsorption Vessel, Surface and Pore Diffusion Model, Film Resistance, Intraparticle Diffusion
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