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Electrodialysis simulation to achieve optimum current densityElectrodialysis is used to remove salts from waste or other water streams, to yield a concentrated brine and a substatially deionized product water. During the electrodialysis process, the boundary layer adjacent to the ion selective membrane can become depleted of ions, resulting in severe pH changes sometimes accompanied by precipitation, and power losses, by a process known as water splitting. In order to optimize the applied electric current density, to achieve maximum deionization without exceeding the limiting current at any point along the path, a simulation program has been created to plot ion concentrations and fluxes, and cell current densities and voltages along the electrodialysis path. A means for tapering the current density along the path is recommended.
Document ID
19950060053
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Herrmann, Cal C.
(University of California, Berkeley, CA United States)
Date Acquired
August 17, 2013
Publication Date
January 1, 1993
Publication Information
ISSN: 0148-7191
Subject Category
Man/System Technology And Life Support
Report/Patent Number
SAE PAPER 932074
Meeting Information
Meeting: SAE, International Conference on Environmental Systems
Location: Colorado Springs, CO
Country: United States
Start Date: July 12, 1993
End Date: July 15, 1993
Accession Number
95A91652
Funding Number(s)
CONTRACT_GRANT: NAS2-13273
Distribution Limits
Public
Copyright
Other

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