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Chemical decontaminating agent and decontamination method

A technology of chemical decontamination and weight percentage, applied in chemical instruments and methods, radioactive purification, detergent composition, etc. question

Inactive Publication Date: 2012-06-20
KEXINYUAN ENVIRONMENTAL PROTECTION ENG BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Under this situation, the decontamination of nuclear facilities is a systematic project, and the requirements for detergents are very high. It is difficult for ordinary detergents to meet the requirements of removing radioactive pollution.

Method used

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  • Chemical decontaminating agent and decontamination method
  • Chemical decontaminating agent and decontamination method
  • Chemical decontaminating agent and decontamination method

Examples

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example 1

[0014] Recipe 1

[0015] Nitric acid 10%, polyaspartic acid 3%, glycolic acid 5%, sodium bromide 2%, alkyl glycoside 12%, isotridecanol 2%, lan-826 2.5%

[0016] Recipe 2

[0017] Sulfamic acid 30%, glycolic acid 5%, sodium bromide 2%, alkyl glycoside 15%, lan-826 2.5%, polyethylene glycol 3%

[0018] Recipe 3

[0019] Nitric acid 3%, polyaspartic acid 3%, EDTA 3%, potassium bromide 1%, isotridecanol 10%, Lan826 3%, anionic polyacrylamide 1%

[0020] Recipe 4

[0021] Polyacrylic acid 5%, glycolic acid 20%, sodium bromide 2%, alkyl glycoside 15%, lan-826 2.5%, polyethylene glycol 3%

example 2

[0023] Use formula 1 to the test of certain nuclear plant contamination sample: (see figure 1 )

[0024] The 1# sample is a stainless steel plate with a length of 54cm and a width of 16.5cm at one end, of which the 10cm section from the side protrudes about 1.5cm from the remaining 6.5cm section. Set point measurement from the corresponding area of ​​the protruding section of the internal measurement of the board, the measurement area number is inner 1, and then set a point measurement in the diagonal direction adjacent to the side side, the measurement area number is inner 2, so, press " "Type routes in turn select area numbers. The outside area of ​​the board is numbered to correspond to the inside, the back of the inside 1 and the outside 1.

[0025] The 2# sample is a carbon steel pipe split into two arched plates, one of which is 32.5cm long and 21.5cm in outer diameter. Set point measurement from the corresponding area at the inner corner of the board, the measurement...

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Abstract

The invention relates to a chemical decontaminating agent and a decontamination method. The chemical decontaminating agent contains acids, bromides, molybdates, surfactants, corrosion inhibitors, anti-settling agents and deionized water. The chemical decontaminating agent is mainly applied to eliminate radioactive contamination during decommissioning and operation of nuclear facilities, reduces corrosion to facilities of different materials, and has a high decontamination factor (DF) of common nuclides. Besides, the chemical decontaminating agent has a good stability.

Description

1. Technical field [0001] The invention relates to a nuclear facility decontamination agent and a decontamination method. 2. Background technology [0002] With the continuous development and application of new energy, the development and technology of atomic energy are becoming more and more perfect, the development and utilization of nuclear energy have brought huge economic and social benefits to human beings, and at the same time, a large amount of radioactive waste has been brought to the living environment of human beings. a greater threat. Therefore, how to safely and effectively dispose of radioactive waste so that it can be isolated from the biosphere to the greatest extent has become an increasingly urgent and important issue facing the nuclear industry and nuclear science. For nuclear power plants, nuclear plants and nuclear facilities that provide other services that have been in operation for more than 20 years , such as: uranium geological exploration, uranium...

Claims

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Application Information

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IPC IPC(8): C11D10/02G21F9/28C23G1/06C23G1/08
Inventor 肖春志
Owner KEXINYUAN ENVIRONMENTAL PROTECTION ENG BEIJING
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