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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 increasing the production of secondary radioactive waste, and achieve the effects of improving the decontamination factor, reducing the production, and reducing the production

Pending Publication Date: 2019-10-25
TSINGHUA UNIV
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Problems solved by technology

However, for radioactive waste liquid with high salt content, the ratio of the amount of non-radioactive salt to the amount of radionuclides is usually greater than 10 5 Even higher, treating non-radioactive salts and radionuclides together as treatment objects will result in most of the concentrate being non-radioactive salts, thereby greatly increasing the amount of secondary radioactive 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

Examples

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Embodiment 1

[0110] The radioactive wastewater treatment device used in this embodiment is the same as Figure 6 The difference of the shown device is that the continuous electric desalination equipment 223 is not provided, that is, the purification liquid outlet of the reverse osmosis equipment 213 is directly connected to the monitoring discharge tank 410, and the other parts are the same as Figure 6 The apparatus shown is the same. Among them, the reverse osmosis equipment 213 is a three-stage reverse osmosis equipment formed by connecting three reverse osmosis membrane modules in series, the chemical precipitation reactor 311 adopts an integrated precipitation equipment, and the inorganic membrane filter 102 adopts a ceramic membrane.

[0111] The simulated radioactive wastewater treated in this example contains Cs + 10mg / L, Sr 2+ 10mg / L, NaCl 10g / L, oil content 100ppm.

[0112] The design treatment capacity of the radioactive wastewater treatment plant is 1m 3 / h.

[0113] After...

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Abstract

The invention discloses a radioactive waste liquid treatment method and device. The radioactive waste liquid treatment method comprises the steps that radioactive waste liquid is subjected to separation treatment to obtain first purified liquid and concentrated liquid; radioactive nuclide removal treatment is performed on the concentrated liquid to obtain second purified liquid, wherein the step of performing the radioactive nuclide removal treatment on the concentrated liquid includes chemical precipitation technology processing of the concentrated liquid; and the first purified liquid and the second purified liquid are discharged. The radioactive waste liquid treatment method and device have a higher radioactive waste liquid purification level, and can significantly reduce the amount ofradioactive waste generated, thereby achieving small quantification of the radioactive waste.

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] According to the salt content, the radioactive waste liquid can be divided into three categories: (1) the salt content is 0g L -1 ~2g·L -1 low-salt radioactive waste liquid; (2) the salt content is 2g L -1 ~10g·L -1 radioactive waste liquid with moderate salt content; (3) salt content up to 10g L -1 High-salt radioactive waste liquid above. [0003] It is very difficult to completely separate salt and radionuclides. Therefore, in the treatment of radioactive waste liquid, for radioactive waste liquid with low salt content, salt and radionuclide are generally treated together as the treatment object. However, for radioactive waste liquid with high salt content, the ratio of the amount of non-radioactive salt to the amount of radionuclides is usually greater than 10...

Claims

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Application Information

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IPC IPC(8): G21F9/06G21F9/12
CPCG21F9/06G21F9/12C02F1/44C02F9/00Y02A20/131
Inventor 赵璇李福志张猛
Owner TSINGHUA UNIV
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