A Method for Estimating the Limiting Current Density in Electrodialysis
- 1 May 1988
- journal article
- research article
- Published by Taylor & Francis in Separation Science and Technology
- Vol. 23 (6) , 585-600
- https://doi.org/10.1080/01496398808057654
Abstract
An equation for estimating the limiting current density (LCD) in the electrodialytic equipment with spacers is derived by using the equation of the flow distribution and by assuming that the eddy diffusivity caused by the spacer is proportional to Re. The empirical constants of the eddy diffusivity in the equation were determined by measurement of LCD using spacers, electrolytes, feed concentrations, operating temperatures, and flow velocities. The results obtained show that LCD in the electrodialysis can be estimated from the equation derived here.Keywords
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