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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received March 13, 2001
Accepted June 5, 2001

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Effect of pH on Adsorption of 2,4-Dinitrophenol onto an Activated Carbon

Tae Young Kim Seung Jai Kim^† Sung Young Cho

Department of Environmental Engineering, Chonnam National University, Gwangju 500-757, Korea

sjkim@chonnam.chonnam.ac.kr

Korean Journal of Chemical Engineering, September 2001, 18(5), 755-760(6), 10.1007/BF02706396

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Abstract

The adsorption characteristics of 2,4-dinitrophenol from water onto a granular activated carbon, F-400, were studied at pH 4.3, 7 and 10. Adsorption equilibria of 2,4-dinitrophenol on GAC could be represented by Sips equation. Equilibrium capacity increased with decreasing pH. The differences in the rates of adsorption are primarily attributable to the differences in the equilibrium at the various pHs. Intraparticle diffusion was explained by surface diffusion mechanism. An adsorption model based on the linear driving force approximation (LDFA) was used for simulating the adsorption behavior of 2,4-dinitrophenol in a fixed bed adsorber.

Keywords

Adsorption 2,4-Dinitrophenol Activated Carbon Fixed Bed pH

References

Kamel D, Tahar S, Pestic. Sci., 54, 269 (1998)
Mehmet M, Irfanet K, Melda T, J. Environ. Sci. Health, B35(2), 187 (2000)
Misic DM, Sudo Y, Suzuki M, Kawazeo K, J. Chem. Eng. Jpn., 15, 490 (1982)
Moon H, Lee WK, J. Colloid Interface Sci., 96, 162 (1983)
Moon H, Tien C, Ind. Eng. Chem. Res., 26, 2024 (1987)
Reid RC, Prausnitz JM, Pokung BE, "The Properties of Gases and Liquides," McGraw-Hill Co., New York (1994)
Ruthven DM, "Principles of Adsorption and Adsorption Processes," John Wiley and Sons, New York (1984)
Teng HS, Hsieh CT, Ind. Eng. Chem. Res., 37(9), 3618 (1998)
Wakao N, Funazkri, Chem. Eng. Sci., 33, 1375 (1978)