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Radioactive waste treatment method

A radioactive waste and treatment method technology, which is applied in the field of radioactive waste treatment, can solve the problems of occupying large nuclear waste yard space, etc., and achieve the effects of improving the treatment pertinence, simplifying the structure, and reducing the amount of accumulation

Active Publication Date: 2019-11-22
航天国环技术集团有限公司
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Problems solved by technology

This method has been developed for decades, although the technology is very mature, but it needs to occupy a lot of nuclear waste storage space

Method used

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  • Radioactive waste treatment method

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Embodiment 1

[0035] This embodiment provides a treatment method for radioactive waste, which is mainly applied to the treatment of relatively fine particles such as solid radioactive waste powder, such as figure 1 As shown, the processing method includes the following steps:

[0036] S1, start the spray device 2 in the feed tower 1, and run it for 1-2 minutes in advance to keep the humid environment in the feed tower;

[0037] S2, the radioactive waste powder is fed through the feed port 11, and the radioactive waste powder is fully mixed with the weakly alkaline absorption solution sprayed from the spray device 2, so that the acidic components in the radioactive waste powder and the weakly alkaline absorption solution After the reaction is absorbed, the composition and concentration of the weakly alkaline absorbing solution can be determined according to the main components of the radioactive waste powder. Most of the radioactive waste powder is captured by the weakly alkaline absorbing s...

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Abstract

The invention discloses a radioactive waste treatment method, which relates to the field of radioactive waste treatment, and comprises the following steps: starting a spraying device in a feeding tower; feeding radioactive waste powder through a feeding port and fully mixing same with a weakly-alkaline absorption solution sprayed out of the spraying device, and allowing most of the radioactive waste powder to be captured by the weakly-alkaline absorption solution and flow into a liquid tank; conveying a small amount of uncaptured radioactive waste into a heating and drying device through a spiral propeller; enabling the heating and drying device to perform heating and drying treatment on the radioactive waste and then discharge the radioactive waste through a solid residue outlet; using aradioactivity, cesium and boron element detection device to detect the solution in the liquid tank, and controlling the opening and closing of a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve respectively according to detection results, so that solutions with different cesium and boron concentrations and different radioactivity concentrations can enter a high-concentration treatment device, a medium-concentration treatment device and a low-concentration treatment device respectively to be treated to reach the emission level. By using the method, volume reduction and innocent treatment of radioactive wastes are achieved.

Description

technical field [0001] The invention relates to the technical field of radioactive waste treatment, in particular to a radioactive waste treatment method. Background technique [0002] In order to solve the increasingly serious energy problem, on the premise of ensuring safety and reliability, relevant state departments are steadily promoting the construction and use of nuclear power plants. How to effectively deal with radioactive waste while minimizing the volume of radioactive waste has always been an unsolved problem in countries all over the world. [0003] The radioactivity of radioactive waste cannot be eliminated by general physical, chemical and biological methods, and can only be reduced by the decay of radionuclides themselves. When the radiation emitted by radioactive waste passes through the material, ionization and excitation will occur, which will cause radiation damage to organisms. Radioactive nuclides in radioactive waste release energy through decay. Whe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21F9/30G21F9/34G21F9/12
CPCG21F9/12G21F9/30G21F9/34
Inventor 郑先强
Owner 航天国环技术集团有限公司
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