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相关概念视频

Microbial Leaching01:27

Microbial Leaching

Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...

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Measuring Fluxes of Mineral Nutrients and Toxicants in Plants with Radioactive Tracers
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流量中断实验量化微量元素从浅水中出的微量元素.

Abraham Ofori1, Luigi Alessandrino1, Regmi Vipin2

  • 1DiSTABiF - Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, Campania University "Luigi Vanvitelli", Via Vivaldi 43, 81100, Caserta, Italy.

The Science of the total environment
|October 30, 2025
PubMed
概括
此摘要是机器生成的。

沿海三角洲地区的次灌可以将有毒微量元素 (TE) 调动到地下水中. 这些土壤中的间歇性水流释放了和等元素,对饮用水质量构成风险.

关键词:
柱子漏实验 柱子漏实验地下水的清新化方法矿氧化氧化过程中的矿氧化.顺序提取 顺序提取 顺序提取微量元素的移动性 微量元素的移动性

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科学领域:

  • 环境科学 环境科学
  • 水文地质学 水文地质学
  • 地质化学 地质化学

背景情况:

  • 沿海三角洲地区的盐度是全球日益关注的问题,原因是气候变化和过度使用水.
  • 这些地区的次灌实践可以增强微量元素 (TE) 进入地下水的运动.

研究的目的:

  • 调查间歇性次灌对盐化泥水族群中微量元素浸出的影响.
  • 在模拟下灌条件下评估微量元素的运输和地化学变化.

主要方法:

  • 使用合成雨水在波河三角洲盐泥土上的柱体实验.
  • 使用化 (NaCl) 痕迹测试评估的非平衡运输和阴离子交换.
  • 使用CXTFIT 2.0进行模拟,以量化吸附和非平衡过程.
  • 测试前和测试后的顺序提取分析,以评估地质化学变化.

主要成果:

  • 流量中断导致 (As), (Mn), (Pb) 和 (Ni) 的峰值超过饮用水标准.
  • 从粘土和有机物质的 (Na+) 交换促进了微量元素的化.
  • 甲和甲的部分氧化有助于微量元素的持续释放.
  • 由于扩散到有机物碎片中, (Cl-) 化被减缓.

结论:

  • 在减少,泥的三角洲环境中交替进行次灌,可以将微量元素调动到地下水中.
  • 这些发现对全球类似的水文地质环境具有重要意义,包括农业系统和含水层恢复.
  • 间歇性灌策略需要谨慎管理,以减轻微量元素污染风险.