High-salt high-alkali low and intermediate level radioactive waste solution cement solidification formula

Abstract

The invention discloses high-salt high-alkali low and intermediate level radioactive waste solution cement solidification formula which is used for low and intermediate level waste solution with salt content of 200g / l to 300g / l and 80 percent of sodium nitrate. The low and intermediate level radioactive waste solution with 80 percent of sodium nitrate contains the following components: 0 to 5 percent by volume of slurry, 50 to 100 percent by mass of cement, 0 to 22.5 percent by mass of coal ash, 0 to 22.5 percent by mass of mineral powder and 0 to 5 percent by mass of attapulgite, wherein the ratio of liquid to ash is 0.55 to 0.65. The high-salt high-alkali low and intermediate level radioactive waste solution cement solidification formula is already proved in the commissioning and continuous operation of a cement solidification engineering solidification line, and the performance of solid prepared by utilizing the formula not only can meet the national standard requirement, but also can promote the deployment of the solidification of high-salt high-alkali low and intermediate level radioactive waste solution (containing alpha slurry) and can accelerate the transformation of basic application scientific research to the engineering application.

Description

technical field

[0001] The invention belongs to the field of solidification treatment of radioactive waste liquid, and in particular relates to a solidification formula of high-salt, high-alkali, medium and low-level radioactive waste liquid cement. Background technique

[0002] At present, different treatment processes such as cement curing, asphalt curing, plastic curing, glass curing, artificial rock curing, improved cement curing, ceramic curing, and granulation curing are mostly used for the curing of medium and low-level radioactive waste liquid at home and abroad. Cement solidification is a common technology for treating low- and medium-level radioactive waste liquids. It has the advantages of stable performance of the solidified body, simple process operation, and low cost. curing treatment. The principle of cement solidification is to use cement as the main inorganic gel solidification substrate, and can also be mixed with fly ash, attapulgite, mineral powder, zeol...

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