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Remediation Performance of a New Oxidative-Washing Agent for Real Uranium-contaminated Soil in a Certain Mining Area
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Yingnan SHI1, 2, Siyu WANG1, 2, Zhongkui ZHOU1, 2, Yishuo ZHANG1, Tingting CAI1, 2, Bin CHE1, 2
Hydrometallurgy of China | 2025, 44(4) : 534 - 545
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Hydrometallurgy of China | 2025, 44(4): 534-545
• Experiment Research •
Remediation Performance of a New Oxidative-Washing Agent for Real Uranium-contaminated Soil in a Certain Mining Area
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Yingnan SHI1, 2, Siyu WANG1, 2, Zhongkui ZHOU1, 2, Yishuo ZHANG1, Tingting CAI1, 2, Bin CHE1, 2
Affiliations
  • 1 State Key Laboratory of Nuclear Resources and Environment,East China University of Technology,Nanchang 330013,China
  • 2 School of Water Resources and Environmental Engineering,East China University of Technology,Nanchang 330013,China
Published: 2025-08-20 doi: 10.13355/j.cnki.sfyj.2025.04.013
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The removal of uranium bound to organic matter in real uranium-contaminated soil from a certain mining area was studied by using a combined oxidation washing process.The removal effects of uranium by two different new oxidation-washing systems(EDTA-H2O2 and SDS-H2O2)were compared.The effects of key parameters such as pH,liquid volume to solid mass ratio,oxidant concentration,and washing agent concentration on removal rate of uranium were investigated through single-factor experiments.The process conditions were optimized by response surface methodology,and the optimal conditions were determined.The results show that the removal rate of uranium by the EDTA-H2O2 system is 52.8% under the conditions of pH=4,liquid volume to solid mass ratio of 15/1,H2O2 concentration of 3%,and EDTA concentration of 100 mmol/L.After optimizing the process conditions by response surface methodology,the removal rate can be increased to 56.3%.The removal rate of uranium by the SDS- H2O2 system is 26.8% under the conditions of pH=4,liquid volume to solid mass ratio of 10/1,H2O2 concentration of 3%,and SDS concentration of 20 mmol/L.After optimizing the process conditions by response surface methodology,the removal rate can be increased to 29.5%.The removal effects of the two oxidation-washing systems are significantly better than those of single washing agents and single oxidants (EDTA 24.12%,SDS 0.66%,H2O2 13.81%).The process can effectively break the complex of organic matter and uranium,significantly improve the remediation efficiency of real uranium-contaminated soil,and provide a feasible solution for uranium pollution control in mining areas.

uranium  /  soil  /  oxidation-washing  /  EDTA  /  SDS  /  H2O2  /  removal  /  response surface methodology
Yingnan SHI, Siyu WANG, Zhongkui ZHOU, Yishuo ZHANG, Tingting CAI, Bin CHE. Remediation Performance of a New Oxidative-Washing Agent for Real Uranium-contaminated Soil in a Certain Mining Area[J]. Hydrometallurgy of China, 2025 , 44 (4) : 534 -545 . DOI: 10.13355/j.cnki.sfyj.2025.04.013
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Year 2025 volume 44 Issue 4
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Article Info
doi: 10.13355/j.cnki.sfyj.2025.04.013
  • Receive Date：2025-03-17
  • Online Date：2025-09-09
  • Published：2025-08-20
Article Data
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  • Received：2025-03-17
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    1 State Key Laboratory of Nuclear Resources and Environment,East China University of Technology,Nanchang 330013,China
    2 School of Water Resources and Environmental Engineering,East China University of Technology,Nanchang 330013,China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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Genus		 种数
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Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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