Effects of Wettability and Zeta Potential of Filter Medium on Oil Removal

Abstract:

The methods and devices which can be used to determine the wettability and zeta potential of filter medium were developed according to the principles of capillary rise and streaming potential respectively. Lipophilic Hydrophilic Ratio (LHR) was defined based on Washburn equation. LHR values and zeta potentials of some conmen filter media were measured respectively, and the oil removal efficiencies of these filter media were also tested. The result shows that the effect of wettability on oil removal efficiency is much greater than that of zeta potential in conmen condition. The oil removal efficiency mainly depends on LHR value of filter medium, not on zeta potential of filter medium.

• Periodical: Advanced Materials Research (Volumes 148-149)
• Pages: 58-70
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.148-149.58
• Online since: October 2010
• Authors: Qing Chang, Bin Wu Yang, Bi Gui Wei
• Keywords: Filter Medium, Lipophilic Hydrophilic Ratio (LHR), Oily Wastewater, Water Treatment, Wettability, Zeta-Potential

References

[1] V. Jegatheesan and S. Vigneswaran: Wat. Res., Vol. 31(11) (1997), p.2910.

[2] Z. C. Bi, Z. S. Zhang, F. Xu, Y.Y. Qian, J.Y. Yu: J. colloid and interf. Sci., Vol. 214(1999), p.368.

[3] S. C. Ayirala, D. N. Rao: Colloids and Surfaces A: Physicochem. Eng. Aspects, Vol. 241(2004) , p.313.

[4] W. Agnieszka, C. Emil: Colloid and surface A: Physicochem. Eng. Aspects Vol. 159(1999), p.253.

[5] E. A. Stephan, G.G. Chase: Sep. Purif. Technol., Vol. 21(2001), p.219.

[6] T.V. Subrahmanyam, C.A. Prestidge and J. Ralston: Miner. Eng., Vol. 9(7) (1996), p.727.

[7] C. A. Prestidge and G. Tsatouhas: Inter. J. Pharm. Vol. 198 (2000), p.201.

[8] A.W. Anderson, P.J. Scales and J. Ralston: Bull. Proc. Australas. Inst. Mining Metall., Vol. 291(1986), p.73.

[9] G. Martic, J. D, Coninck and T.D. Blake: J. Colloid Interf. Sci., Vol. 263 (2003), p.213.

[10] T.R. Gu, B.Y. Zhu, W.L. Li, J.M. Ma, L.R. Dai, H.M. Chen: Surface Chemistry(Sci. Press., China 1997) (in Chinese).

[11] M.D. Afonso, G. Hagmeyer, R. Gimbel: Sep. Purif. Technol., Vol. 22-23 (2001), p.529.

[12] Z. K. Zhou, T. R. Gu, J. M. Ma: The Basis of Colloid Chemistry(Beijing University Press, China 1996) (in Chinese).

[13] D. Dunstan, L.R. White: J. Colloid Interf. Sci. Vol. 3 (1986), p.60.

[14] E.W. Washburn: Phys. Rev. Vol. 17 (1921), p.273.

[15] F. Kuhnen, K. Barmettler, S. Bhattacharjee, et al.: J. Colloid Interf. Sci., Vol. 231(2000), p.32.

[16] S.M. Iveson, S. Holt and S. Biggs: Colloid and Surfaces A: Physicochem. Eng. Aspects, Vol. 166 (2000) , p.203.

[17] A. Siebold, A. Walliser, M. Nardin, et al.: J. Colloid Interf. Sci., Vol. 186(1997), p.60.

[18] S. E. Truesdail, Clark G. B. Westermann, D. O. Shah: J. Environ. Eng., Vo. 124(12)(1998), p.1228.

[19] Chinese National Bureau for Environment Protection: Methods of Monitoring and Analysis for Water and Wastewater( third ed. )（ China Environ. Sci. Press, China, 1989)(in Chinese).