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Radioactive waste liquid treatment method and device

A radioactive waste liquid and treatment method technology, which is applied in the field of radioactive waste liquid treatment methods and devices, can solve the problems of complicated treatment process, large amount of secondary radioactive solid waste, and low utilization rate of ion exchange resin, so as to improve utilization efficiency , save the curing process, reduce the effect of production

Active Publication Date: 2019-10-18
TSINGHUA UNIV
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Problems solved by technology

Among them, the concentrated liquid produced by the separation of radioactive waste liquid needs to be processed by solidification process to form a solidified body. The volume containment capacity of the radioactive waste liquid in the solidified body is only about 20%, resulting in a large amount of secondary radioactive solid waste, and the treatment process is complicated; And because the concentration of radionuclides in the purification solution is reduced to a lower level, the utilization rate of the ion exchange resin is also lower, resulting in a larger amount of secondary radioactive solid waste

Method used

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  • Radioactive waste liquid treatment method and device
  • Radioactive waste liquid treatment method and device
  • Radioactive waste liquid treatment method and device

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Embodiment 1

[0109] The radioactive wastewater treatment device used in this embodiment adopts such as Figure 6 In the shown device, the reverse osmosis equipment 213 is three reverse osmosis membrane modules connected in series, and each reverse osmosis membrane module is provided with a reverse osmosis membrane element Dow BW30-4040. The equipment, components and materials used in the device are shown in the table below:

[0110]

[0111] The radioactive wastewater treated in this example is simulated radioactive wastewater, which contains Cs + 2000μg / L, Co 2+ 875μg / L, Sr 2+ 1230μg / L, surfactant 10mg / L.

[0112] The design treatment capacity of the radioactive wastewater treatment plant is 1m 3 / h, the treatment rate of the ion exchange bed is about 10BV / h.

[0113] The above-mentioned simulated radioactive wastewater was first pretreated by an activated carbon adsorption bed, the concentration of surfactant in the water was reduced to 0.98 mg / L, and the concentration of radionu...

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Abstract

The embodiments of the invention provide a radioactive waste liquid treatment method and device. The radioactive waste liquid treatment method includes the steps that radioactive waste liquid is separated to obtain first purified liquid and concentrated liquid; and the concentrated liquid is subjected to ion exchanging treatment to obtain second purified liquid, wherein the first purified liquid and the second purified liquid are discharged, or the second purified liquid returns to a separation treatment process, and the first purified liquid is discharged, or part of the second purified liquid returns to the separation treatment process, and the first purified liquid and the rest part of the second purified liquid are discharged. According to the radioactive waste liquid treatment methodand device, the higher radioactive waste liquid purification level is achieved, meanwhile, the production amount of radioactive waste can be significantly decreased, and the radioactive waste is minified.

Description

technical field [0001] The invention relates to the technical field of radioactive waste liquid treatment, in particular to a radioactive waste liquid treatment method and device. Background technique [0002] For the radioactive waste liquid produced in the nuclear industry, reverse osmosis treatment has the characteristics of good effluent water quality, low energy consumption, and strong adaptability, and ion exchange has a good removal effect on radioactive nuclides existing in the form of ions in the waste liquid. , are commonly used processing techniques. [0003] Due to the complex and low content of radioactive components in radioactive waste liquid, in order to meet the increasingly high requirements for environmental radiation protection in nuclear industry construction, combined treatment processes are mostly used for radioactive waste liquid. The combination process form of conventional reverse osmosis treatment and ion exchange is: the series combination of rev...

Claims

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Application Information

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IPC IPC(8): G21F9/12
CPCG21F9/12
Inventor 赵璇李福志张猛
Owner TSINGHUA UNIV
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