Device and method for removing ultrasonic electrochemical radioactive contaminations of nuclear facilities

Abstract

The invention relates to a device and a method for removing ultrasonic electrochemical radioactive contaminations of nuclear facilities, and belongs to the field of nuclear industrial radioactive waste treatment. The device is provided with an ultrasonic decontamination part and an electrochemical decontamination part, and comprises an electrochemical decontamination system, an ultrasonic decontamination system, an electrolyte heating system, an electrolyte circulating system and a controller. The method comprises the following steps: (I) the device for removing the ultrasonic electrochemical radioactive contaminations of the nuclear facilities is reasonably arranged on the scene according to the scene conditions; (II) a decontamination agent is added in the device; the temperature is adjusted according to workpiece demands; and the electrolyte circulating system is started; (III) decontaminated workpieces are placed; electrochemical and ultrasonic parameters are set; and the time is adjusted according to the decontamination conditions; and (IV) the decontaminated workpieces are cleaned and dried. A novel comprehensive decontamination process of combining ultrasonic and electrochemical methods is adopted to achieve such characteristics as low output of secondary wastes, high decontamination efficiency and uniform distribution of the surface current of the decontaminated workpieces.

Description

technical field [0001] The invention relates to an ultrasonic electrochemical radioactive pollution decontamination device and method for nuclear facilities, belonging to the field of radioactive waste treatment in the nuclear industry. Background technique [0002] With the rapid development of my country's nuclear power industry, more and more radioactive waste is produced by nuclear power plants. The treatment and decontamination of radioactive waste is an important link to ensure the safe and stable operation of nuclear power components. Due to the large amount of radioactive substances contained in nuclear power plant reactors, they will adhere to the surface of system equipment, tools, grounds, walls, etc. during the operation and maintenance of the power plant, forming radioactive pollution. Therefore, it is necessary to decontaminate radioactive surface contamination. [0003] In foreign countries, during the operation of nuclear power plants, especially during the ...

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Problems solved by technology

[0005] In order to fill the blank of the existing nuclear power facility decontamination device, the purpose of the present invention is to provide a nuclear facility sonoelectrochemical radioactive pollution decontamination device and method, which solves the unsatisfactory decontamination effect and the generation of many new wastes in the prior art. Problems such as waste liquid

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