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A Study on Behaviors of the Uranium Dissolution From Uranium- Contaminated Soil During an Acid Wash Process KCI 등재 SCOPUS
- 언어ENG
- URLhttps://db.koreascholar.com/Article/Detail/440582
pp.97-105
Uranium-contaminated soil can be cleaned using an acid washing process. However, high-concentration acid washing generates substantial amounts of radioactive waste, making it essential to develop a treatment process using low-concentration acid. This study evaluated the effectiveness of low-concentration sulfuric acid washing for uranium removal from contaminated soil. Experiments were conducted with a 0.05 M sulfuric acid solution. With a mixing ratio of soil to acid solution at 1:5, three consecutive washes were sufficient to remove uranium from contaminated soil to clearance level. During the acid washing process, real-time pH monitoring was performed to analyze the correlation between uranium leaching and pH changes. This led to the establishment of a monitoring-based process control strategy. In conclusion, we identified an effective method for removing uranium from soil under low acid concentration conditions. Consequently, significant reductions in radioactive waste generation are anticipated.
2. Experimental and Method
2.1 Acid Washing of Uranium-ContaminatedSoil
2.2 Analysis Method
3. Results and Discussion
3.1 Characteristics of Uranium-ContaminatedSoil
3.2 Analysis of Uranium-Contaminated Soiland Effluent After Acid Washing
3.3 Correlation Between pH and Acid Washing
4. Conclusion
Conflict of Interest
Acknowledgements
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