Electrolytic decontaminating method for removing radioactive contaminant from metal surface
A metal surface, electrolyte technology, applied in radioactive purification, nuclear engineering and other directions, can solve the problems of long decontamination time, low metal corrosion rate, high decontamination cost, reduce the generation of secondary waste, and wide operating temperature range , the effect of prolonging the service life
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0014] The α surface contamination of a contaminated sample is 2.07×10 5 cpm, β surface contamination is 1.58×10 4 cpm, gamma pollution metering rate 1.67×10 3 cpm. The decontamination device used can be a general tank-type electrolytic decontamination device or an in-situ electrolytic decontamination device.
[0015] Connect the contaminated sample as the anode to the positive pole of the power supply, and the cathode to the negative pole of the power supply, and fill the gap between the cathode and the anode with the electrolyte solution. The electrolyte formula is HNO with a mass percentage of 5%. 3 , the mass percent is 10% NaNO 3 , and the rest is water. The electrolysis temperature is room temperature, and the current density is 0.6A / cm 2 , after 15 minutes of electrolysis, the measured values of α and β surface contamination of the contaminated sample were close to the background, and the decontamination factors were α: 2.59×10 5 , β: 1.32×10 4 , γ: 213.
Embodiment 2
[0017] The α surface contamination of a contaminated sample is 1.61×10 4 cpm, β surface contamination is 1.54×10 4 cpm, gamma pollution metering rate is 29cpm. The decontamination device can be a general tank-type electrolytic decontamination device, or an in-situ electrolytic decontamination device.
[0018] Connect the contaminated sample as the anode to the positive pole of the power supply, and the cathode to the negative pole of the power supply, and the electrolyte formula is HNO with a mass percentage of 4%. 3 , with a mass percentage of 5% NaNO 3 , and the rest is water. The electrolysis temperature is 20°C, and the current density is 0.3A / cm 2 , After 20 minutes of electrolysis, the measured values of α and β surface pollution and the measurement rate of γ pollution of contaminated samples are all background values.
Embodiment 3
[0020] The α surface contamination of a contaminated sample is 2.86×10 5 cpm, β surface contamination is 1.11×10 4 cpm, gamma pollution metering rate is 413cpm. The decontamination device used can be a general tank-type electrolytic decontamination device or an in-situ electrolytic decontamination device.
[0021] Connect the contaminated sample as the anode to the positive pole of the power supply, and the cathode to the negative pole of the power supply. The electrolyte formula is 4% HNO by mass 3 , the mass percent is 10% NaNO 3 , the rest is water, the electrolyte is filled between the cathode and the anode, the electrolysis temperature is 30°C, and the current density is 0.6A / cm 2 , after 20 minutes of electrolysis, the α surface pollution measurement value of the contaminated sample is close to the background, the gamma pollution measurement rate is the background value, and the decontamination factors are α: 1.22×10 4 , β: 455.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com