The Application Of Nitrogen Laser On Extraction Of Uranium In The Long Life Of High Level Radioactive Liquid Waste Using TBP-Kerosene Solvent

G, Gunandjar (2012) The Application Of Nitrogen Laser On Extraction Of Uranium In The Long Life Of High Level Radioactive Liquid Waste Using TBP-Kerosene Solvent. In: International Conference on Chemical and Material Engineering 2012. ISBN : 978-602-097-281-7, September 12 – 13, 2012, , Grand Candi Hotel, Semarang Indonesia.

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Abstract

The radionuclide of uranium (U) is major radionuclide contained in the long life of high level radioactive liquid waste (HLLW) generated from reprocessing of spent nuclear fuel. The radioactive waste have to be treated to ready for long term disposal. Separation of the U at high efficiencies greatly lowers the volume of the long life alpha radiaoctive waste to be disposed and decreases the hazard level of the waste. The technology assessment of selective separation of U was carried-out as alternative and strategy for HLLW management in the future. The selective separation technology of U from fission products at very high efficiencies was developed by the extraction process using TBP-kerosene solvent and increasing the separation by exposure of nitrogen (N2) laser radiation at wavelength 337.1 nm. In the extraction process for simulation waste containing U and Zr in 5 M HNO3 (Zr as one of fission product which difficult to be separated from U) using 30 % TBP-kerosene solvent and by exposure of nitrogen laser radiation shows that increasing of distribution coefficient of U (Kd U) can obtains 135 % and increasing of separation factor of U and Zr (SF(U/Zr)) is 189 %. The increasing of Kd U using N2 laser higher than using CO2 laser (at the wave-number 944 cm-1) which increase of Kd U only 100 %. In Indonesia, assessment for adaptation of the separation technology by extraction for separation of U process using 30 % TBP-kerosene solvent should be carried-out as alternative for treatment the HLLW generated from 99Mo radioisotope production and from post irradiation examination of nuclear fuel.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:extraction, high level radioactive waste, photochemistry of laser, tributylphosphate, uranium.
Subjects:T Technology > TP Chemical technology
Divisions:UNDIP Conference/Seminar > International Conference on Chemical and Material Engineering 2012
Faculty of Engineering > Department of Chemical Engineering
Faculty of Engineering > Department of Chemical Engineering
ID Code:36980
Deposited By:teknik kimia
Deposited On:16 Nov 2012 23:46
Last Modified:16 Nov 2012 23:46

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