Abstract
In this paper, a mathematic model of a three-compartment membrane electrodialysis in H 2SO 4–(NH 4) 2SO 4–NH 3·H 2O system has been developed to calculate the exit concentration of ammonium sulfate in the desalting cell. The model is established on the basis of electromigration and concentration diffusion, and it includes several parameters such as electrolyte solution diffusion coefficient, diffusion boundary layer thickness, current density as well as ionic transference number in the solution and in the membrane. These parameters can be deduced from a reliable procedure based on some experimental data. The model can predict the ammonium sulfate exit concentration according to actual operating conditions. In the context of this model, we discuss the current density effect on the exit concentration. The results showed that calculation data were in accordance with experimental data in large current density range, but deviated from them in a small current density range. The good agreement between experimental data and model data confirms the reliability of the model predictions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
