Electrochemical degradation of spent tributyl phosphate extractant by a boron-doped diamond anode

The effects of the main operation variables on the electrochemical oxidation of simulated tributyl phosphate (TBP) waste by a boron-doped diamond anode are individually studied. The optimum operating conditions are obtained as follows: 4 g L −1 initial TBP concentration, 180 min degradation time, 40...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2018-01, Vol.315 (1), p.29-37
Main Authors: Zhou, Yuqin, Yang, Pan, Pu, Yang, Xuan, Sensen, Wang, Pohui, Zhang, Yaping
Format: Article
Language:English
Subjects:
Anode effect
Boron
Chemical oxygen demand
Chemistry
Chemistry and Materials Science
Degradation
Diagnostic Radiology
Diamonds
Electrochemical oxidation
Electrolytes
Energy consumption
Hadrons
Heavy Ions
Inorganic Chemistry
Nuclear Chemistry
Nuclear energy
Nuclear industry
Nuclear Physics
Phosphates
Physical Chemistry
Uranium
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Summary:The effects of the main operation variables on the electrochemical oxidation of simulated tributyl phosphate (TBP) waste by a boron-doped diamond anode are individually studied. The optimum operating conditions are obtained as follows: 4 g L −1 initial TBP concentration, 180 min degradation time, 40 mA cm −2 current density, 0.5 mol L −1 Na 2 SO 4 as the supporting electrolyte, and unadjusted pH of the aqueous phase. Under such conditions, a chemical oxygen demand (COD) removal ratio of 82.3% is achieved, and the energy consumption is 26.16 kWh m −3 . A degradation mechanism of TBP is tentatively proposed.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-017-5635-x