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Radioactive concentrated liquor solidifying formula

A technology for radioactive waste liquid and concentrated liquid, which can be used in radioactive purification, nuclear engineering, etc., and can solve the problems of low volume containment rate of radioactive solid waste.

Inactive Publication Date: 2014-06-25
CNNC NUCLEAR POWER OPERATION MANAGEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of low volume containment rate of radioactive solid waste in the cement solidification formula of the prior art, and to provide a radioactive concentrate solidification formula

Method used

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  • Radioactive concentrated liquor solidifying formula
  • Radioactive concentrated liquor solidifying formula
  • Radioactive concentrated liquor solidifying formula

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Embodiment Construction

[0020] A kind of radioactive concentrate solidification formula of the present invention is introduced below in conjunction with accompanying drawing and specific embodiment:

[0021] A radioactive concentrate solidification formula, including Portland cement, waste resin, zeolite, lime, water reducing agent and water.

[0022] The proportioning ratio of various components in the formula is:

[0023] Portland cement: 900kg; concentrate: 450L; zeolite: 55kg; lime: 110kg;

[0024] Water reducer: 3kg. The concentrated liquid refers to the radioactive waste liquid obtained through distillation with a boron concentration greater than 40000ppm. The lime refers to Ca(OH) 2 The content is greater than 92% lime.

[0025] The formula of the present invention verified below in conjunction with a specific embodiment.

[0026] The ratio of various components in the formula is: Portland cement: 900kg; concentrate: 450L; zeolite: 55kg; lime: 110kg; water reducer: 3kg.

[0027] For the ...

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Abstract

The invention belongs to the technical field of radioactive concentrated liquor solidification of pressure water reactor nuclear power stations, and particularly relates to a radioactive concentrated liquor solidifying formula. The problem that the radioactive solid waste volume ratio in each waste treatment package in the cement solidification formula in the prior art is low is solved. The radioactive concentrated liquor solidifying formula comprises Portland cement, spent resin, zeolite, lime, water reducing agents and water; and the Portland cement is 900kg, concentrated liquor is 450L, the zeolite is 55kg, the lime is 110kg, and the water reducing agents are 3kg. The precipitation rate of radioactive elements is restrained by adding the zeolite in the existing formula; a stirring process is smooth by adding the water reducing agents in the existing formula; sand in the original formula is removed; the ratio of various components in the formula is reasonably adjusted; the radioactive concentrated liquor in each cement barrel can be increased to 450 litres from 342 litres; the radioactive spent resin solid volume ratio in each cement barrel is increased to 52.5% from 39.9%; and the solid volume ratio is obviously increased.

Description

technical field [0001] The invention belongs to the technical field of radioactive concentrate solidification in pressurized water reactor nuclear power plants, and in particular relates to a radioactive concentrate solidification formula. Background technique [0002] During the operation of nuclear power plants, a large amount of radioactive solid waste such as waste resin and concentrated liquid will be produced. In order to prevent the radioactive solid waste from harming the human living environment, it must be solidified to make it easy to transport and store, and then stored for a long time In the final disposal site of radioactive solid waste to ensure that the radioactive solid waste is safely isolated from the environment for 300-500 years, the radionuclide undergoes natural decay, and its radioactivity drops to an acceptable level, no longer harmful to the environment. [0003] Cement curing is a relatively safe curing method. The principle is to use hydraulic cem...

Claims

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Application Information

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IPC IPC(8): G21F9/16G21F9/20
Inventor 莫晓蔚周瑞东童楚华任军谭其明李俊峰陈德冲
Owner CNNC NUCLEAR POWER OPERATION MANAGEMENT
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