Electrodialysis-ion exchange for the separation of dissolved salts. Final report
The program described in this report studies the suitability of electrodialysis-ion exchange (EDIX) to treat aqueous streams containing heavy metals and radioactive cations in a solution containing sodium and nitrates. The goal of the program was to produce a cation stream containing sodium, heavy metals, and radioactive cations; an anion stream of nitric acid free of heavy metals and radioactive cations; and a product stream that meets discharge criteria. The experimental results, described in detail, indicated that EDIX was not a suitable process for treating wastes containing metals that formed insoluble hydroxides in a basic solution; the metals precipitate in the catholyte and feed compartments, and in the cathode membrane. The test program was therefore terminated prior to completion of all planned activities. 2 refs., 22 figs., 8 tabs.
- Research Organization:
- Wastren, Inc., Westminster, CO (United States)
- Sponsoring Organization:
- USDOE Office of Environmental Restoration and Waste Management, Washington, DC (United States)
- DOE Contract Number:
- AR21-95MC32112
- OSTI ID:
- 565392
- Report Number(s):
- DOE/MC/32112--5757; ON: DE97005459
- Country of Publication:
- United States
- Language:
- English
Similar Records
Electrodialysis-ion exchange for the separation of dissolved salts
The application of electrodialysis to extend the lifetime of commerical electroplating baths