不可燃放射性废物三元混杂玻璃固化方法初探

Abstract

Abstract: By regularly changing the mixture ratio of concrete, soil and glass fiber waste and additive composition, then completing the preparation and performance test of glass samples, the ternary hybrid glass formulations were optimized which can meet the performance requirements of radioactive waste glass. The containment capacity of the mixed waste glass formulations is much higher than that of the single waste glass formulations.The effects on the curing ability of nuclide in mixed glass formulations caused by additives, melting temperature and heat preservation temperature were investigated. The results show that both the melting temperature and heat preservation temperature have almost no effect on the curing ability of Co and Sr in the case of melting temperature not higher than 1 300 ℃, while the curing ability of Cs decreases with the increase of melting temperature. However, the curing ability of Cs decreases with the increase of melting temperature, heat preservation temperature and holding time when the melting temperature is higher than 1 100 ℃. It is recommended that the melting temperature of mixed glass formula should not be higher than 1 300 ℃ and the melting time should not exceed 1 hour.

Key words: noncombustible radioactive wastes, vitrification, formulation experiment, ternary hybrid glass formulations

CLC Number:

TL941.113

LIU Chunyu, LI Lili, WANG Dong. Preliminary experimental research on ternary hybrid glass formulations of noncombustible radioactive wastes[J].RADIATION PROTECTION, 2023, 43(2): 166-174.

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Preliminary experimental research on ternary hybrid glass formulations of noncombustible radioactive wastes

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