A method of solidifying radioactive waste resin using naalo2 coagulant cement

Abstract

The invention discloses a method for curing a radioactive waste resin by NaAlO2 coagulant cement, and belongs to the technical field of radioactive waste resin cement curing. The method comprises the following steps of mixing sulfoaluminate cement, a composite mineral additive, NaAlO2 and NaOH well, stirring the mixture and a radioactive waste resin in a stirring kettle, transferring the mixture obtained by the previous step into a mold and maintaining for curing. The method is utilized for curing a radioactive waste resin, improves a capacity and compressive strength of cured waste, and shortens coagulation time.

Description

technical field

[0001] The invention belongs to the technical field of radioactive waste resin cement solidification, in particular to a method using NaAlO 2 A method for solidifying radioactive waste resin with coagulant cement. Background technique

[0002] In nuclear power plants, ion exchange technology is widely used in auxiliary systems of the primary and secondary circuits and radioactive waste liquid treatment systems. Due to the high radioactive level of the loaded nuclides or the saturation of the exchange capacity, the resin in the equipment needs to be replaced regularly. Waste resin must be cured before final disposal. Cement solidification technology is the main solidification method of radioactive waste resin, but the waste containment capacity is low. Especially when solidifying the boron-containing waste resin produced by the pressurized water reactor nuclear power plant, the increase in the containment capacity will increase the amount of boron contained ...