Adsorption Behavior and Thermodynamic Characteristics of p,p’- DDT on Expanded Graphite

Abstract:

The adsorption of p,p’-DDT onto expanded graphite (EG) in aqueous solutions was investigated under varying conditions of p,p’-DDT concentrations, adsorbent doses, pH, and contact time. The removal efficiency of p,p’-DDT from the aqueous solutions remained constant in a range of pH 2 to 10, and the thermodynamic data followed the type II adsorption isotherm characterized by a spontaneous process. At lower concentrations, adsorption equilibrium of p,p’-DDT onto EG was fitted to Freundlich isotherm. Dynamic modeling of the adsorption showed that the first order reversible kinetic model was held for the adsorption process within the range of experimental concentration. It was suggested that expanded graphite can be used for efficient removal of p,p’-DDT from water and wastewater.

• Periodical: Advanced Materials Research (Volumes 287-290)
• Pages: 1653-1658
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.287-290.1653
• Online since: July 2011
• Authors: You Ya Zhou, Zeng Guang Yan, Kinam Kim
• Keywords: Adsorption, Expanded Graphite (EG), P,p′- D D T, Thermodynamic

References

[1] R. A. Doong, C. K. Peng, Y. C. Sun and P. L. Liao: Mar. Poll. Bull. Vol. 45(2002), p.246

[2] Z. M. Gong, S. Tao, F. L. Xu, R. Dawson, W. X. Liu, Y. H. Cui, J. Cao, X. J. Wang, W. R. Shen, W. J. Zhang, B. P. Qing and R. Sun: Chemosphere Vol. 54(2004), p.1247

DOI: 10.1016/j.chemosphere.2003.10.021

[3] O. S.Fatoki and R. O. Awofolu: J. Chromatogr. A, Vol. 983(2003), p.225

[4] Z. L.Zhang, H. S. Hong, J. L. Zhou, M. H. Dai, K. Maskaouib and W. Q. Chen: Chem. Res. Chinese Univ (in Chinese). Vol. 18(2002), p.153

[5] Information on http://www.pops.int, 2001.

[6] H. Murayama, N. Moriyama, H. Mitobe, H. Mukai, Y. Takase, Ki. Shimizu and Y.Kitayama: Chemosphere. Vol. 52(2003), p.825

DOI: 10.1016/s0045-6535(03)00312-6

[7] A. V. Dedov: Chem. Technol. Fuels. Oils Vol. 38(2002), p.128

[8] A.Celzard, J. F. Mareche, G. Furdin: Carbon Vol. 40(2002), p.2713

[9] F. Y. Kang, Y. P. Zheng, H. Zhao, H. N. Wang, L. N. Wang, W. C. Shen and M. Inagaki: New. Carbon. Mater. Vol. 18(2003), p.161

[10] H. Zhao, W.Zhou, N. Z.Cao, W. C.Shen and Y. P. Zheng: Mater. Sci. Eng. Vol. 20(2002), p.153

[11] D. J. Shaw: Butterworth & Co Publishers Ltd, 1999, p.145

[12] N. Z Cao, W. C Shen,. S. Z. Wen and Y. J.Liu: Environ. Eng. Vol. 14(1996), p.27

[13] F. Y. Kang, Y. P. Zheng, H. N. Wang, Y. Nishi and M. Inagaki: Carbon Vol. 40(2002), p.1575

[14] R. Reeve: John Willey & Sons Ltd, 2002, p.24

[15] J. H.Li, Q. Y. Liu, M. Li and Z. R.Liu: Fine Chem. (in Chinese), Vol. 20(2003), p.341

[16] Y. Y. Zhou, S. W. Wang, K. N. Kim, J. J. Li and X. P.Yan: Talanta Vol. 69(2006), p.970

[17] F.Gode and E. Pehlivan: J. Hazard. Mater. Vol. B119(2005), p.175

[18] Y. M. Xu, R. S. Wang and F.Wu: J. Colloid. Interface. Sci. Vol. 209(1999), p.380

[19] G. Bereket, A. Z. Aroğuz and M. Z. Özel: J. Colloid. Interface. Sci. Vol. 187(1997), p.338

[20] S. Rengaraj, K. H. Yeon and S. H. Moon: J. Hazard. Mater. Vol. B87(2001), p.273

[21] R. J. Umpleby, S. C. Baxter, M. Bode, J. K. Berch, R. N. Shah and K. D. Shimizu: Anal. Chim. Acta. Vol. 435(2001), p.35

[22] H. Genc-Fuhrman, J. C. Tjell and D. McConchie: Environ. Sci. Technol.Vol. 38(2004), p.2428

[23] Y. Yu, Y. Y. Zhuang, Zh. H. Wang: J. Colloid. Interface. Sci. Vol. 242(2001), p.288

[24] M.Chu, H. M. Li and S. Z. Ren: J. China Univ. Mining Technol. (in Chinese), Vol. 30(2001), p.307