Abstract
The removal of copper ions was studied experimentally in a semifluidized bed charged with a strong cation-exchange resin, Amberlite 200C. The semifluidized bed system was formed by inserting a retaining grid in a packed bed and increasing the fluid velocity above Umf. In this arrangement, the bed is separated into two sections; the upper packed bed section and the lower fluidized bed section. As the fluid velocity increases, the portion of the packed bed section becomes larger. As expected, the breakthrough curve obtained from the semifluidized bed lies between those from packed and fluidized beds. The breakthrough curves of copper ions were predicted reasonably well by using an axial dispersion model. In this paper, the effects of the liquid flowrate and the retaining grid height on the breakthrough behavior are extensively discussed.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Biscans, B., Riba, J. P. and Couderc, J. P., “Continuous Equipment for Ion Exchange in a Fluidized Bed ; Prospect and Problems”,Int. Chem. Eng.,28, 248 (1988).
Davidsion, J. F. and Harrison, D., “Fluidization”, Academic Press, New York (1977).
Dwivedi, P. N. and Upadhyay, S. N., “Particle-Fluid Mass Transfer in Fixed and Fluidized Beds”,I & EC Proc. Des.,16, 157 (1977).
Fan, L. T., Yang, Y. C. and Wen, C. Y., “Mass Transfer in Semifluidized Beds for Solid-Liquid System”,AIChE J.,6, 482 (1960).
Fan, L.T., Yang, Y.C. and Wen, C.Y., “Semifluidization: Mass Transfer in Semifluidized Beds”,AIChE J.,5, 407 (1959).
Hwang, S.J. and Lu, W. J., “Ion Exchange in a Semifluidized Bed”, Proceedings of the 2nd Asian Conf. on Fluidized Bed and Three-Phase Reactors, 249 (1990).
Hwang, S.J. and Lu, W.J., “Ion Exchange in a Semifluidized Bed”,Ind. Chem. Res.,34(4), 1434 (1995).
Mydlarz, J., “Prodiction of Packed Bed Height Inn Liquid-Solid Semifluidization of Homogeneous Mixtures”,Chem. Eng. J.,34, 155 (1987).
Park, Y. G., “Liquid-Solid Mass Transfer in Semifluidized and Fluidized Beds”, M. S. Thesis, Chonnam National University (1995).
Schweitzer, P.A., “Handbook of Separation Techniques for Chemical Engineers”, New York, McGraw-Hill (1979).
Singh, A. N., Kesavan, S. and Gupta, P. S., “Rate of Mass Transfer in a Semifluidized Bed”,Int. J. Heat Mass Tr.,23, 279(1980).
Weber, W. J., “Physicochemical Processes for Water Quality Control”, New York, Wiley-Interscience (1972).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Kim, S.J., Park, Y.G. & Moon, H. Removal of copper ions by a cation-exchange resin in a semifluidized bed. Korean J. Chem. Eng. 15, 417–422 (1998). https://doi.org/10.1007/BF02697132
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02697132