Abstract
Ammonium molybdophosphate (AMP) immobilized on a polyacrylonitrile (PAN) support is an engineered form of cesium selective sorbent material developed at the Czech Technical University in Prague. This material is being investigated as a sorbent for removing 137Cs from Idaho National Engineering and Environmental Laboratory (INEEL) acidic sodium bearing waste (SBW) solution. As part of this study, a computer program to solve the partial differential equations (PDE's) for continuity and rate of exchange in a fixed bed system has been developed using numerical finite difference algorithms. These equations are solved iteratively in order to derive a mass transfer coefficient that agrees with the results of bench scale column experiments. This mass transfer coefficient is then applied in the PDE solutions to predict breakthrough behavior in a semi-scale column experiment. The model provided excellent agreement with the semi-scale data with a mass transfer coefficient of 0.0126 min−1.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Cooper, R.S. and D.A. Liberman, “Slow Particle Diffusion in Ion Exchange Columns,” Ind. Eng. Chem. Fundam., 4, 308 (1965).
Cooper, R.S. and D.A. Liberman, “Fixed Bed Adsorption Kinetics with Pore Diffusion Control,” Ind. Eng. Chem. Fundam., 9, 620 (1970).
Helfferich, F., Ion Exchange, pp. 475–476, McGraw-Hill, New York, 1962.
Herbst, R.S., J.D. Law, T.A. Todd, D.J. Wood, T.G. Garn, and E.L. Wade, “Integrated AMP-PAN, TRUEX, and SREX Flowsheet Test to Remove Cesium, Surrogate Actinide Elements, and Strontium from INEEL Tank Waste Using Sorbent Columns and Centrifugal Contactors,” Bechtel BWXT Idaho, INEEL/EXT-2000–00001, January 2000.
Klein, G., “Column Design for Sorption Processes,” in Mass Transfer and Kinetics of Ion Exchange,L. Liberti and F.G. Helfferich (Eds.), pp. 226–227, Martinus Nijhoff, Boston, 1982.
Michaels, A.S., “Simplified Method of Interpreting Kinetics Data in Fixed-Bed Ion Exchange,” Ind. And Eng. Chem., 44, 1920–1930 (1952).
Sebesta, F., J. John, and A. Motl, “Development of Composite Ion-exchangers and their use in Treatment of Liquid Radioactive Wastes,” Czech Technical University of Prague, July 1996.
Smit, J. and R. van, “Insoluble Heteropolyacid Salts,” in Inorganic Ion Exhangers in Chemical Analysis, M. Qureshi and K.G. Varshney (Eds.), pp. 68–69, CRC Press, Boston, 1991.
Thomas, H.C., “A Problem in Kinetics,” Anals of the New York Academy of Science, 49, 161 (1948).
Tranter, T.J., R.S. Herbst, T.A. Todd, A.L. Olson, and H.B. Eldredge, “Evaluation of Ammonium molybdophosphate-Polyacrylonitrile (AMP-PAN) as a Cesium Selective Sorbent for the Removal of Cs-137 from Acidic Nuclear Waste Streams,” Advances in Environmental Research, 6, 107–121 (2002).
Vermeulen, T., “Theory of Irreversible and Constant-Pattern Solid Diffusion,” Ind. Eng. Chem., 45, 1664 (1953).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Tranter, T., Herbst, R. & Todd, T. Determination of a Solid Phase Mass Transfer Coefficient for Modeling an Adsorption Bed System Using Ammonium Molybdophosphate-Polyacrylonitrile (AMP-PAN) as a Sorbent for the Removal of 137Cs from Acidic Nuclear Waste Solutions. Adsorption 8, 291–299 (2002). https://doi.org/10.1023/A:1021533429787
Issue Date:
DOI: https://doi.org/10.1023/A:1021533429787