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M.I. El-Dessouky, A. M. El-Kamash, M.R. El-Sourougy, H. F. Aly
Simulation of zeolite fixed bed columns used for treatment of liquid radioactive wastes
In treatment of liquid radioactive wastes by ion exchange technique, specific attention is drawn to the simulation of exchange system behavior. Mathematical models are particularly useful in the design and optimization of ion exchange columns to predict the characteristics of the breakthrough curve under a given set of conditions.
A systematic mathematical model for prediction of the concentration profile of in-going cation (strontium) to a zeolite fixed bed as a function of time or eluted volume, to obtain the shape of the exchange zone, has been developed. The model was verified by experiments of 0.2 N sodium nitrate solution with 5×10-5 Sr2+ using three different types of natural zeolites. A Fortran-77 computer program was designed to run the model on IBM computer. The model was used to examine how the concentration profiles are affected by the operating parameters. A rough calculation of Reynolds Number was carried out to check the flow regime operating on the used column.
Radiochimica Acta, Oldenbourg Wissenschaftsverlag
Print ISSN: 0033-8230
Volume: 88, 12/2000
Pages: 879