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传统硬岩采矿和加工对水质的影响

Gordon D Z Williams¹, Marija Petrović², Robert C Hill¹

¹Division of Earth and Climate Science, Nicholas School of the Environment, Duke University, Durham, North Carolina 27708, United States.

Environmental science & technology

|December 2, 2025

概括

硬岩 (Li) 开采对水质产生影响. 传统的采矿废物,特别是石膏,会增加像TDS和Li这样的地表水污染物,而自然地质会影响地下水化学.

科学领域:

环境科学环境科学
地质化学地质化学
水文地质学水文地质学

背景情况:

硬岩采矿正在全球扩大,以满足清洁能源需求.
与提取相关的水质影响,特别是从岩石提取的水质影响,尚不清楚.
传统的采矿场所为评估长期环境影响提供了有价值的案例研究.

研究的目的:

评估锡-斯波多烯带 (TSB) 的地表水和地下水质量,这是一个具有历史矿开采的地区.
确定水质变化的来源,区分采矿相关影响和自然地质化学过程.
评估历史矿活动对家庭用水供应的潜在风险.

主要方法:

来自TSB的地表水和地下水样本的分析.
在采矿场附近的家用井水质量的地理空间分析.
确定关键的化学成分 (例如TDS,Li,Rb,Cs) 和地质化学过程.

主要成果:

在传统矿区附近的地表水中,在环中性pH值下显示出总溶解固体 (TDS), (Li) 和 (Rb) 的含量较高.
从历史加工废物中溶解石膏被确定为表面水污染的主要驱动因素.
地下水表现出,Rb和 (Cs) 的丰富,这是由于天然的水岩相互作用与粘合石.
没有发现对附近家用水井的水质有重大影响.

结论:

从历史上加工中产生的废石膏残留物是长期地表水质恶化的主要原因.
地下水的化学成分主要由皮石和宿主岩石之间的自然地化学相互作用控制.
这些发现表明,随着勘探和采矿的扩大,全球可能会出现类似的水质问题.

关键词:

亚是一种.关键矿物质是重要的矿物质.石膏石膏是一种石膏.佩格马提特是一种石.矿井矿井矿坑矿坑水与岩石的相互作用.

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