Mining provides significant economic value while often impacting local water supplies and environments because of freshwater usage and waste disposal practices. This study identifies current practices in mine water, including how water is used in mining, influent and effluent water quality, treatment technologies, and end uses with the goal of informing future research on implementable, reliable, and cost-effective advanced water treatment in the mining sector. This study also reviews the available literature to broadly evaluate mining in the United States and performs a techno-economic assessment on water use and disposal for three detailed case studies applicable to lithium, uranium, and copper mines. These case studies highlight specific industry examples of distinct extraction methods, geographical regions, and mined commodities. Hypothetical scenarios based on case study baselines revealed potential impacts to mine water available for beneficial reuse through the use of novel water treatment technologies and alternate water management strategies. Finally, an assessment of national level impacts resulting from the reuse of treated mine source water is presented.

中文翻译：

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美国的矿井水使用、处理和再利用：审视当前行业实践并选择案例研究

采矿提供了巨大的经济价值，同时由于淡水的使用和废物处理实践经常影响当地的供水和环境。本研究确定了矿井水的当前实践，包括如何在采矿中使用水、进水和出水水质、处理技术和最终用途，目的是为未来关于可实施、可靠和具有成本效益的先进水处理的研究提供信息。采矿业。本研究还回顾了现有文献，以广泛评估美国的采矿业，并对适用于锂、铀和铜矿的三个详细案例研究的用水和处置进行技术经济评估。这些案例研究突出了不同提取方法、地理区域和开采商品的特定行业示例。基于案例研究基线的假设情景揭示了通过使用新型水处理技术和替代水管理策略对可用于有益再利用的矿井水的潜在影响。最后，对经过处理的矿源水的再利用产生的国家级影响进行了评估。