A Simulation Study on the Removal Process of the Heavy Metal Ion in Aqueous Solution by the Functionalized Silica Beads

기능화된 실리카 비드를 이용한 수용액상의 중금속 이온의 제거공정에 대한 모사 연구

  • Woo, Yoon-Hwan (Department of Mechanical Systems Engineering, Hansung University) ;
  • Choo, Chang-Upp (Department of Mechanical Systems Engineering, Hansung University)
  • 우윤환 (한성대학교기계시스템공학과) ;
  • 주창업 (한성대학교기계시스템공학과)
  • Received : 2011.06.13
  • Accepted : 2011.06.21
  • Published : 2011.06.30


The removal process of heavy metal ion in aqueous solution by the functionalized silica bead was simulated using the finite difference method. Equilibrium model and non-equilibrium model were proposed and the effects of dimensionless groups and various parameters were investigated. Freundlich isotherm was used in equilibrium model and 1st order adsorption rate expression was assumed in non-equilibrium model. The comparison results by the predictions of equilibrium and non-equilibrium models showed good agreement. The predictions of equilibrium model were compared with experimental results reported in literature and showed the marginal agreement.


Supported by : 한성대학교


  1. Yi, J. and Tavlarides, L. L, "Modeling Chemically Active Liquid Membranes in Tubular Inorganic Supports," AIChE J., 41(6), 1403-4122 (1995).
  2. Lee, W., Kim, C., and Yi, J., "Selective Recovery of Silver Ions from Aqueous Solutions Using Modified Silica Beads with Adogen 354," J. Chem. Technol. Biot., 77, 1255-1261 (2002).
  3. Bibby, A., and Mercier, L., "Mercury(II) Ion Adsorption Behaviour in Thiol-Functionalized Mesoporous Silica Microspheres," Chem. Mater., 14, 1591-1597 (2002).
  4. Kim, Y. S., Kusakabe, K., and Yang, S. M., "Microporous Silica Membrane Synthesized on an Ordered Mesoporous Silica Sublayer," Chem. Mater., 15, 612-620 (2003).
  5. Walcarius, A., Etienne, M., and Bessiere, J., "Rate of Access to the Binding Sites in Organically Modified Silicates. 1. Amorphous Silica Gels Grafted with Amine or Thiol Groups," Chem. Mater., 14, 2757-2766 (2002).
  6. Boissiere, C., Martines, M. A. U., Kooyman, R. J., Kruijff, T. R., Larbot, A., and Prouzet, E., "Ultrafiltration Membrane Made with Mesoporous MSU-X Silica," Chem. Mater., 15, 460-469 (2003).
  7. Oh, S., Kang, T., Kim, H., Moon, J., Hong, S., and Yi, J., "Preparation of Novel Ceramic Membranes Modified Mesoporous Silica with 3-aminopropyltriethoxysilane (APTES) and its Application to $Cu^{2+}$ Separation in the Aqueous Phase," J. Membrane. Sci., 301, 118-125 (2007).
  8. Rengaraj, S., Kim, Y., Joo, C. K., and Yi, J., "Removal of Copper from Aqueous Solution by Aminated and Protonated Mesoporous Aluminas: Kinetic and Equilibrium," J. Colloid Interf. Sci., 273, 14-21 (2004).
  9. Sherwood, T. K., Pigford, R. L., and Wilke, C. R., Mass Transfer, McGraw Hill, Tokyo, 1975, pp. 241-245.