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Start Over Author "Mehta, D. B." Topic nitrates
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1. Development of process for purification of strontium nitrate rich solution to qualify for 90Sr–90Y generator.

Author

Pareek, Pranshu, Singh, Suman Kumar, Mukhopadhyay, Sulekha, Mehta, D. B., and Manohar, S.

Subjects
LIQUID waste, ALPHA rhythm, POLLUTANTS, PHOSPHORIC acid, NITRATES
Abstract

90Sr (T1/2 = 28 y) is always in equilibrium with 90Y in High Level Liquid waste (HLLW) and hence 90Sr is a suitable long lasting source of 90Y, if it is purified suitably for therapeutic applications. A combination of CMPO & TBP was found to be the most suitable solvent system for alpha activity removal. CMPO has high selectivity for alpha contaminants (Pu/Am) w.r.t. 90Sr. For regeneration of spent organic, 3 M Phosphoric acid was most suitable with the ability to strip back more than 98% of gross alpha activity in single contact and thus solvent system was qualified for recycling. [ABSTRACT FROM AUTHOR]

Published
2023
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