Electrochemical oxidation process for mineralization of solvent

Authors

  • Apisara Charoensri Chemistry and Material Science Research Program, Office of Atoms for Peace
  • Fuyumi Kobayashi Department of Criticality and Fuel Cycle Facility, Japan Atomic Energy Agency
  • Akihino Kimura Department of Criticality and Fuel Cycle Facility, Japan Atomic Energy Agency
  • Junichi Ishii Department of Criticality and Fuel Cycle Facility, Japan Atomic Energy Agency

Keywords:

Electrochemical Oxidation, Silver mediated, Ag(II), Tributyl phosphate, Dodecane

Abstract

A silver mediated electrochemical oxidations is a promising technique for the destruction of organic compounds. The destruction of 30%tributyl phosphate in dodecane in a nitric acid medium containing electrogenerated Ag(II) to carbon dioxide was studied by using a laboratory scale electrochemical oxidation cell. The electrolyte used in this system was 0.5 M AgNO3 in the range of 3 - 7 M HNO3, at operating temperatures of 60°C ± 5°C, under ultrasonic agitation and the output of a DC power supply at constant the current was 60 A, respectively. Electrolysis was carried out for 5 hours. The results show that, in silver mediated electrochemical oxidation method, destruction of 30%TBP/Dodecane was increased with increase of concentration of HNO3.

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References

Balazs, G. B., Chiba, Z., Hsu, P., Lewis, P. R., Murguia, L. and Adamson, M. G. 1997. Destruc-tion of Hazardous and Mixed Wastes using Mediated Electrochemical Oxidation in a Ag(II)/HNO Bench Scale System. Livermore, CA, UCRL-126754.

Judd, L. 2002. A Demonstration of SILVER IITM for the Decontamination and Destruction of Organics in Transuranic Wastes. AEA Technology Engineering Services Inc. Sterling, VA 20166.

Paire, A., Espinoux, D., Broudic, J.C., Lecomte, M.and Masson, M. 1997. Organic Compound Oxidation Mechanisms by The Silver(II) Process. Commissariat a l’Energie Atomique (CEA), DRDD/SPHA, France.

National Academy Press 1999. AEA SILVER II Technology Package. Review and Evaluation of Alternative Technologies for Demilitarization of Assembled Chemical Weapons. Washington, D.C.

Sugikawa, S., Umeda, M., Kobayashi, F., Nagata, M., Dojiri, S. and Amano, M. 2005. Enhanced Electrochemical Oxidation of Spent Organic Solvent under Ultrasonic Agitation. Global, Japan.

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Published

2017-04-16

How to Cite

[1]
A. Charoensri, F. . Kobayashi, A. Kimura, and J. Ishii, “Electrochemical oxidation process for mineralization of solvent”, J Met Mater Miner, vol. 16, no. 2, Apr. 2017.

Issue

Vol. 16 No. 2 (2006)

Section

Original Research Articles

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Copyright (c) 2017 Journal of Metals, Materials and Minerals

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