Extraction of long-lived radionuclides 152,154Eu and 134Cs using environmentally benign aqueous biphasic system

Kamalika Roy; Rakhi Paul; Baisakhi Banerjee; Susanta Lahiri

doi:10.1524/ract.2009.1655

Published by De Gruyter (O) December 4, 2009

Extraction of long-lived radionuclides ^152,154Eu and ¹³⁴Cs using environmentally benign aqueous biphasic system

Kamalika Roy , Rakhi Paul , Baisakhi Banerjee and Susanta Lahiri

From the journal rca - Radiochimica Acta

https://doi.org/10.1524/ract.2009.1655

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Abstract

A polyethylene glycol based aqueous biphasic system has been studied for the extraction and separation of long-lived radionuclides, ^152,154Eu and ¹³⁴Cs. The effects of pH variation of the salt rich phases on the extraction properties of these radionuclides were studied and the experimental results were found to be supported by theoretical calculations. It has been observed that at neutral pH of sodium sulphite and at pH 11 of sodium phosphate salt rich phase ¹³⁴Cs could be separated from ^152,154Eu radionuclides. The exact phase forming concentrations of the salt rich phases were determined by measuring the volume of salt rich phase after equilibration.

Keywords: 152,154Eu; 137Cs; Separation; Aqueous biphasic system; Polyethylene glycol

^* Correspondence address: Saha Institute of Nuclear Physics, Chemical Sciences Division, 1/AF Bidhannagar, 700064 Kolkata, Indien, susanta.lahiri@saha.ac.in

Published Online: 2009-12-04

Published in Print: 2009-11

Extraction of long-lived radionuclides ^152,154Eu and ¹³⁴Cs using environmentally benign aqueous biphasic system

Abstract

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