Aurelia Piscureanu, Irina Chican,  Dana VArASteanu, Mirela DulamA, Mircea Ruse<br>Aspects Concerning the Selection of Ion Exchange Resin for <br>Low Level Radwaste Waters Decontamination

Aurelia Piscureanu, Irina Chican, Dana VArASteanu, Mirela DulamA, Mircea Ruse
Aspects Concerning the Selection of Ion Exchange Resin for
Low Level Radwaste Waters Decontamination

Abstract:

This paper presents an experimental investigation characterizing the use of fixed bed ion exchange for simultaneous removal of 60Co and 137Cs radionuclides and of anionic surfactant sodium linear alkyl benzene sulphonate from waste waters resulted in processing of spent nuclear fuel. The first experimental studies were carried out with simulated, non-radioactive, water systems. The use of water radioactive waste as the case of spent decontamination solutions was also checked in experimental investigation. The treatment of radioactive solutions by ion exchange technique was carried at two flow rates and at 250C. Experimental results obtained in simulated non radioactive system using ion exchange resins Purolite NRW 5050 or mixture with Purolite NRW 160 and Purolite NRW 3550 have shown their effectiveness in decontamination of polluted water with cobalt ions and anionic surfactant. In the tests with radioactive system the ion exchanger Purolite 1600 can be effectively used to achieve a high decontamination of polluted water containing fission products (60Co, 137Cs) from the spent decontamination solutions. Keywords: radioactive waste water, ion exchange resins, decontamination, breakthrough curve

Issue: 2015, Volume 66, Issue 11

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