Radioactive organic waste liquid treatment process and system

A technology of organic waste liquid and treatment process, which is applied in radioactive purification, nuclear engineering, etc., and can solve problems such as incomplete treatment of pollutants, easy corrosion of equipment, and incomplete inorganicization of organic waste liquid.

Active Publication Date: 2020-05-15
CHINA NUCLEAR POWER ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to at least partially solve the technical problems of incomplete treatment of pollutants, easy corrosion of

Method used

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  • Radioactive organic waste liquid treatment process and system
  • Radioactive organic waste liquid treatment process and system
  • Radioactive organic waste liquid treatment process and system

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Embodiment Construction

[0075] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0076] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined arbitrarily with each other.

[0077] Wherein, the terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include plural forms unless the context clearly indicates otherwise.

[0078] Such as figure 1 As shown, the embodiment of the present invention provides a process for treating radioactive organic waste liquid, including steps...

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Abstract

The invention provides a radioactive organic waste liquid treatment process and system. The process comprises the following steps: mixing radioactive organic waste liquid and additives according to acertain proportion and an addition sequence; quantitatively feeding the prepared solution into a pyrolyzing furnace, controlling the temperature of the pyrolyzing furnace in a preset range, performingpyrolysis and neutralization reactions on the prepared solution to generate pyrolytic ash and organic combustible waste gas; collecting and temporarily storing pyrolytic ash in an ash discharging hopper, periodically filling pyrolytic ash into a waste bin, delivering the waste bin into a processing facility, processing the pyrolytic ash; filtering organic combustible waste gas, then feeding organic combustible waste gas into a combustion furnace, combusting the organic combustible waste gas, after combustion, feeding high-temperature flue gas into a quench cooler, rapidly cooling the high temperature flue gas until the temperature of the flue gas is lower than a first preset temperature, making the flue gas go through a washing tower, wherein the temperature of the flue gas is reduced tobe lower than a second preset temperature after going through the washing tower, and finally discharging the flue gas through a tail gas draught fan. Radioactive substances in a radioactive organic waste liquid are fully separated, the inorganic rate of the treated organic waste liquid meets the requirement, and the environmental pollution and potential safety hazards can be effectively eliminated.

Description

technical field [0001] The invention belongs to the technical field of radioactive waste liquid treatment, and in particular relates to a radioactive organic waste liquid treatment process and a radioactive organic waste liquid treatment system. Background technique [0002] With the continuous development of the nuclear energy industry, a large amount of spent fuel produced by nuclear power plants needs to be processed to recover resources such as unused uranium. In the process of recovering uranium resources in spent fuel, a large amount of radioactive organic waste liquid will be produced, the main components of which are tributyl phosphate (TBP) and kerosene. Exposure to radioactive pollution not only affects the growth of animals and plants, deteriorates water bodies, endangers human health, but also affects the normal operation of spent fuel processing. If direct combustion is adopted, phosphorus pentoxide will be produced during the combustion of tributyl phosphate, ...

Claims

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Application Information

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IPC IPC(8): G21F9/14G21F9/06G21F9/02G21F9/36G21F9/22
CPCG21F9/14G21F9/06G21F9/02G21F9/36G21F9/22
Inventor 孟祥达刘文新武毓勇董海龙张威郭和一吴华赵庆彬
Owner CHINA NUCLEAR POWER ENG CO LTD
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