Electrolyte capable of removing nuclear pollution and movable cathode electrochemical cleaning device

Abstract

The invention discloses electrolyte capable of removing nuclear pollution, which is composed of deionized water and additives, wherein the additives comprise 25-65g / L of sodium sulfate, 25-65 g / L of sodium potassium tartrate tetrahydrate and 5-50 g / L of ethylene diamine tetraacetic acid corresponding to the deionized water. The invention further discloses a movable cathode electrochemical cleaning device, which comprises a handle, a support member, a cathode electrode, a porous material, an electrolyte conveying pipeline and an electrolyte conveying guide line. The handle is arranged on the support member, the cathode electrode is arranged at the bottom of the support member, the porous material is connected at the bottom of the cathode electrode, the electrolyte conveying pipeline and the guide line are both connected with the cathode electrode, and the cathode electrode is provided with a through hole communicated with the porous material. The electrolyte is high in dirt removing rate, short in processing time, small in corrosion on metal devices and materials, can be used for performing electrochemical cleaning processing on metal devices with large volumes or different to move, fast and efficient in dirt removing, few in secondary pollutants and favorable for promotion and application of the electrochemical cleaning technology.

Description

technical field [0001] The invention relates to radioactive pollution cleaning technology, in particular to an electrolyte used in electrochemical cleaning and an electrochemical cleaning device. Background technique [0002] Decontamination is an indispensable link in the operation and decommissioning of nuclear power plant equipment. At present, at home and abroad, the surface of metal or non-metal equipment and workpieces in nuclear power plants is usually cleaned and purified by physical or chemical decontamination methods. There are mainly the following methods: [0003] 1. Sand blasting [0004] Powered by compressed air, the abrasive is sprayed onto the surface of the workpiece to be treated at high speed to achieve cleaning. Sand blasting is suitable for metal and non-metal surfaces, and the process equipment is simple, but the cost of decontamination is high and the labor intensity is high. The processing process will be accompanied by the formation of a large am...

AI Technical Summary

Problems solved by technology

In addition, the safe discharge and treatment of radioactive waste is a complex and costly process. How to choose an electrolyte that uses less dosage, has high decontamination efficiency, and produces less waste is also an urgent problem to be solved.

In addition, the current common electrolysis device is usually soaked, which is suitable for processing small components, but it cannot be cleaned for large or difficult-to-move devices, which limits the application of electrochemical technology and cannot be used well. Meet the actual needs of the development of the nuclear energy industry

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