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Author Kalu, E. E. ♦ White, R. E. ♦ Hobbs, D. T.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword NUCLEAR FUELS ♦ NITRATES ♦ ELECTROLYSIS ♦ LOW-LEVEL RADIOACTIVE WASTES ♦ ELECTROCHEMICAL CELLS ♦ DESIGN ♦ ANODES ♦ SODIUM SULFATES ♦ SULFURIC ACID ♦ ENERGY EFFICIENCY ♦ BY-PRODUCTS ♦ RADIOACTIVE WASTE PROCESSING
Abstract Processes are being evaluated to separate the high-level radioactive species from the waste and store them permanently in the form of durable solids. The remaining low-level radioactive waste contains species such as nitrites and nitrates that are capable of contaminating ground water. The use of a hydrogen gas-fed anode and an acid analyte in an electrochemical cell used to destroy nitrate is demonstrated. A mixed Na{sub 2}SO{sub 4}/H{sub 2}SO{sub 4} anolyte is shown to favor nitrate cell performance and the generation of a higher hydroxide ion concentration in the catholyte. The suggested scheme is an apparent method of sodium sulfate disposal and a possible means through which ammonia (to ammonium sulfate, fertilizer) and hydrogen gas could be recycled through the anode side of the reactor. This could result in a substantial savings in the operation of a nitrate destruction cell.
ISSN 00134651
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-10-01
Publisher Place United States
Journal Journal of the Electrochemical Society
Volume Number 143
Issue Number 10


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