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Biostimulation Effects on Groundwater of Neutral In-situ Leaching Uranium
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AN Yifu1, SUN Juan1, GAO Yang1, LIAN Guoxi2, 3, YANG Bing1, ZHANG Haoyan1
Uranium Mining and Metallurgy | 2024, 43(1) : 65 - 70
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Uranium Mining and Metallurgy | 2024, 43(1): 65-70
• SAFETY AND ENVIRONMENT PROTECTION •
Biostimulation Effects on Groundwater of Neutral In-situ Leaching Uranium
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AN Yifu1, SUN Juan1, GAO Yang1, LIAN Guoxi2, 3, YANG Bing1, ZHANG Haoyan1
Affiliations
  • 1 The Fourth Research and Design Engineering Corporation, CNNC, Shijiazhuang 050021, China
  • 2 Nuclear and Radiation Safety Center, Ministry of Ecology and Environment, Beijing 100082, China
  • 3 School of Environment, Beijing Normal University, Beijing 100875, China
Published: 2024-02-20 doi: 10.13426/j.cnki.yky.2023.07.02
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Laboratory experiments were conducted on the biostimulation on a mixed system of groundwater and sandstone from a neutral in-situ leaching uranium mine. Based on the biostimulation, the remediation of carbon sources and carbon levels on uranium in groundwater was identified. The results indicate that under ethanol stimulation, the remediation efficiency of target U in neutral groundwater could reach up to 97.48%, this may be related to significant environmental neutral pH and higher reduction Eh values (Pearson’s r>0.7, P<0.01), and the biological metabolism process of ethanol has less disturbance to the water-rock environment, which ensures the relative stability of HCO 3 - and SO 4 2 - plasma environments and made it easier to achieve long-term stability of U in groundwater.

neutral in-situ leaching uranium  /  groundwater  /  biostimulation  /  carbon source  /  microbial remediation
AN Yifu, SUN Juan, GAO Yang, LIAN Guoxi, YANG Bing, ZHANG Haoyan. Biostimulation Effects on Groundwater of Neutral In-situ Leaching Uranium[J]. Uranium Mining and Metallurgy, 2024 , 43 (1) : 65 -70 . DOI: 10.13426/j.cnki.yky.2023.07.02
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Year 2024 volume 43 Issue 1
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doi: 10.13426/j.cnki.yky.2023.07.02
  • Receive Date：2023-07-17
  • Online Date：2025-07-04
  • Published：2024-02-20
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  • Received：2023-07-17
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Affiliations
    1 The Fourth Research and Design Engineering Corporation, CNNC, Shijiazhuang 050021, China
    2 Nuclear and Radiation Safety Center, Ministry of Ecology and Environment, Beijing 100082, China
    3 School of Environment, Beijing Normal University, Beijing 100875, 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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