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首页> 外文会议>Legislation, technology and practice of mine land realamation >Environmental problems and the ecological restoration of polluted land in ion-absorbed rare earth mine: A conceptual model
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Environmental problems and the ecological restoration of polluted land in ion-absorbed rare earth mine: A conceptual model

机译：离子吸收稀土矿山的环境问题与污染土地的生态修复：概念模型

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摘要

The iron-absorbed rare earth deposit occurred in Jiangxi,Fujian Provence et al.in the south of China and is a unique kind of rare earth ores in the world.The Longnan rare earth mining districting in the south of Jiangxi Provence are the most representative iron-absorbed rare earth deposits of China,where the rare earth minerals have been extracted by methods of leaching mining with the oxalate or the ammonium sulfuricum since the 1970s.Environmental problems including the serious chemical land pollution in mining areas and the severe soil and water loss,caused by rare earth mining are increasingly acute.The absence of effective polluted land restoration technology makes the work of polluted land restoration little progress.Combining the geochemical engineering and the flexible structure engineering technologies for polluted land's restoration in rare earth mining areas is a new attempt.The Zudong rare earth mining area is selected as study object for land restoration,where pH values in polluted soil will be adjusted by clay minerals and contents of the ammonia nitrogen and the sulfate radical will be decreased.All soil removed from other place adding restoration materials will be filled in ecological bags and assembled on the exposed land of rare earth mine in way of the flexible structure engineering for plant restoration.Combination of the geochemical engineering and the flexible structure engineering technologies is a new attempt for rare earth polluted land ecological restoration.
机译：铁吸收稀土矿床发生在中国南部的江西，福建普罗旺斯等地区，是世界上一种独特的稀土矿。江西普罗旺斯南部的Long南稀土矿区最具代表性。中国的铁吸收稀土矿床，自1970年代以来一直通过草酸盐或硫酸铵浸出法提取稀土矿物。环境问题包括矿区化学土地污染严重，土壤和水质严重稀土开采造成的损失日益严重。缺乏有效的污染土地修复技术使得污染土地修复工作进展不大。将地球化学工程和柔性结构工程技术相结合，在稀土矿区进行污染修复是一项艰巨的任务。新的尝试。选择祖东稀土矿区作为土地恢复的研究对象，其pH值在被污染的土壤将通过粘土矿物进行调整，氨氮和硫酸根的含量将减少。所有从其他地方添加了修复材料的土壤都将被填充到生态袋中，并通过以下方式组装在稀土矿的裸露土地上：地球化学工程与柔性结构工程技术相结合是稀土污染土地生态修复的新尝试。

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  • 来源
  • 会议地点 Beijing(CN)
  • 作者

    S.W.Liu; X.D.Liu; Y.Y.Huang; X.J.Luo;

  • 作者单位

    National Research Center for Geoanalysis, Beijing, China Key Laboratory of Ecological Geochemistry, Ministry of Land and Resources, Beijing, China;

    National Research Center for Geoanalysis, Beijing, China Key Laboratory of Ecological Geochemistry, Ministry of Land and Resources, Beijing, China;

    National Research Center for Geoanalysis, Beijing, China Key Laboratory of Ecological Geochemistry, Ministry of Land and Resources, Beijing, China;

    Beijing Shuntian Lvse Bianpo Keji Ltd., Beijing, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 矿山开采;
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