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Investigation on Radon Release Characteristics of an Acid In-situ Leaching Uranium Mine
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Yalan WANG1, Lechang XU1, Hui ZHANG2, Lei ZHOU1
Uranium Mining and Metallurgy | 2024, 43(3) : 93 - 99
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Uranium Mining and Metallurgy | 2024, 43(3): 93-99
• SAFETY AND ENVIRONMENT PROTECTION •
Investigation on Radon Release Characteristics of an Acid In-situ Leaching Uranium Mine
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Yalan WANG1, Lechang XU1, Hui ZHANG2, Lei ZHOU1
Affiliations
  • 1 Beijing Research Institute of Chemical Engineering and Metallurgy, CNNC, Beijing 101149, China
  • 2 CNNC Resources Development Co., Ltd., Beijing 100013, China
Published: 2024-08-20 doi: 10.13426/j.cnki.yky.2024.01.03
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Investigation on release characteristics of radon concentration, radon release amount, migration and diffusion trend of radon of an acid in-situ leaching uranium mine was carried out on the basis of data collection and field investigation. This study monitored radon concentration of source items and surrounding environment on uranium milling plant vents, leaching tanks, evaporation ponds and recovery wells with adoption of E-Perm electret detector, solid track detector and RAD7 radon detector. The results show radon concentration level is highest at top opening of leaching tanks, nevertheless affected area is no more than 500 m. Lowest radon concentration appeare at point of recovery wells. The annual total radon release of the acid in-situ leaching uranium mine is about 1.75 TBq/a, milling plant and leaching tanks are important radon release source items, which accounte for 58% and 39% of the total radon release respectively, additionally radon release of recovery wells and evaporation ponds account for 3% of the total radon release. In summary, the normalized annual radon release amount of the acid leaching uranium mine is much smaller than that of underground mine exhaust shaft.

in-situ leaching of uranium  /  radon release  /  radon concentration  /  acid process  /  E-Perm electret detector  /  solid track detector  /  RAD7 radon detector
Yalan WANG, Lechang XU, Hui ZHANG, Lei ZHOU. Investigation on Radon Release Characteristics of an Acid In-situ Leaching Uranium Mine[J]. Uranium Mining and Metallurgy, 2024 , 43 (3) : 93 -99 . DOI: 10.13426/j.cnki.yky.2024.01.03
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Year 2024 volume 43 Issue 3
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doi: 10.13426/j.cnki.yky.2024.01.03
  • Receive Date：2024-01-10
  • Online Date：2025-07-04
  • Published：2024-08-20
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  • Received：2024-01-10
Affiliations
    1 Beijing Research Institute of Chemical Engineering and Metallurgy, CNNC, Beijing 101149, China
    2 CNNC Resources Development Co., Ltd., Beijing 100013, 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
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
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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