IOP Conf. Series: Materials Science and Engineering
2018
2018
Manganese Oxide-Based Sorbent for Sr-90 Radionuclide Removal from Seawater
Авторы:
Papynov E.K., Egorin A.M., Sokolnitskaya T.A., Marinin D.V., Azarova Y.A., Portnyagin A.S., Balanov M.I., Misko D.S., Shelestiuk E.A., Kalashnikova A.M., Tokar E.A., Tananaev I.G., Avramenko V.A.
Papynov E.K., Egorin A.M., Sokolnitskaya T.A., Marinin D.V., Azarova Y.A., Portnyagin A.S., Balanov M.I., Misko D.S., Shelestiuk E.A., Kalashnikova A.M., Tokar E.A., Tananaev I.G., Avramenko V.A.
Abstract. The morphology, specific surface area, and sorption properties toward Sr-90 radionuclides in seawater of a sorption material based on manganese oxide have been investigated. The material was fabricated through interaction of KMnO4 and H2O2 with subsequent annealing at 500 °С. The sorbent is characterized with the mechanical strength sufficient for using under dynamic sorption conditions: here, the efficiency of Sr-90 removal at feeding of 150 bed volumes exceeds 95 %. The values of Sr-90 distribution coefficients are equal to 0.8–1.2×103 ml/g in the real seawater and to 1.6-1.8 ×103 ml/g in the simulated one.
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