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首页> 外文期刊>Environmental Engineering Science >Field Tests of the Phytoremediation of Uranium Tailings by Macleaya cordata (Willd.) R. Br.
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Field Tests of the Phytoremediation of Uranium Tailings by Macleaya cordata (Willd.) R. Br.

机译：Macleaya Cordata（Willd.）R.BR的铀尾矿植物修复的现场试验。

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摘要

The goal of this research is phytoremediation of uranium-contaminated soil. In the preliminary investigation, Macleaya cordata (Willd.) R. Br. was found to grow in abundance around uranium tailings. Afterward, the field tests to remove uranium from the contaminated soil by the M. cordata (Willd.) R. Br. were conducted. After 3 years of treatment, the contents of uranium in the shallow, middle, and deep layers decreased by 51.2%, 16.6%, and 90.3%, respectively, indicating the transfer of uranium from the tailings. The content of uranium in the roots, stems, and leaves of M. cordata that had been planted for 3 years was significantly higher than that in the first year, indicating the transfer of uranium to M. cordata (The uranium content of the part of M. cordata underground is 1.870 ± 0.288 mg/kg and the content in the aboveground part is 79.815 ± 0.911 mg/kg after 3 years). The results of Mi-Seq indicated that microbial communities were exposed to variations and that microbes, such as Bacillus, Lactococcus, Nitrosomonadaceae, and Roseiflexus, were involved in the remediation of uranium-contaminated soil, demonstrating that the reduced uranium content in the tailings is a result of the joint action by plants and microbes. An infrared analysis indicated that the -OH and COO- groups are the main functional groups in M. cordata involved in the bioconcentration of uranium. Moreover, as time advances, the uranium in the tailings was readily concentrated by the plant, demonstrating that the remediation of radioactive contamination by M. cordata is viable.
机译：该研究的目标是铀污染土壤的植物修复。在初步调查中，Macleaya Cordata（Willd。）R.Br。被发现在铀尾矿周围的丰富度。之后，现场试验以通过M.Cordata（Willd.）R.BR中从污染的土壤中除去铀。进行了。经过3年的治疗后，浅，中层和深层铀的含量分别下降51.2％，16.6％和90.3％，表明铀从尾矿转移。种植3年的M. Cordata的根，茎和叶片中铀的含量明显高于第一年的铀，表明铀转移到M. cordata（部分铀含量） M. Cordata地下是1.870±0.288 mg / kg，3年后，上面的内容为79.815±0.911 mg / kg）。 MI-SEQ的结果表明，微生物社区暴露于变化，并且均枯草芽孢杆菌，乳杆菌，亚硝基胺酰胺和玫瑰花属涉及铀污染土壤的修复，表明尾矿中的降低的铀含量植物和微生物的关节作用的结果。红外分析表明-OH和COO-基团是铀生物浓缩的M. Cordata中的主要官能团。此外，随着时间的推移，尾矿中的铀被植物容易地集中，表明M. Cordata的放射性污染修复是可行的。

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  • 来源
    《Environmental Engineering Science》 |2021年第7期|654-661|共8页
  • 作者

    Liu He; Qinwen Deng; Dexin Ding; Yongdong Wang; Fan Wang;

  • 作者单位

    Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy University of South China|Hengyang Key Laboratory of Soil Pollution Control and Remediation University of South China|School of Resources Environment and Safety Engineering University of South China;

    Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy University of South China|Hengyang Key Laboratory of Soil Pollution Control and Remediation University of South China|School of Resources Environment and Safety Engineering University of South China;

    Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy University of South China|School of Resources Environment and Safety Engineering University of South China;

    Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy University of South China|School of Resources Environment and Safety Engineering University of South China;

    Hengyang Key Laboratory of Soil Pollution Control and Remediation University of South China|School of Resources Environment and Safety Engineering University of South China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Macleaya cordata (Willd.) R. Br.; phytoremediation; uranium tailings;

    机译：Macleaya Cordata（Willd。）R.Br。;植物化;铀尾矿;

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