A Quantitative Sustainability Assessment for Mine Closure and Repurposing Alternatives in Colorado, USA
A Quantitative Sustainability Assessment for Mine Closure and Repurposing Alternatives in Colorado, USA
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DOI：
10.3390/resources11070066
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发表时间：
2022-07
期刊：
影响因子：
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通讯作者：
Cansu Perdeli Demirkan;N. Smith;S. Duzgun
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作者：
Cansu Perdeli Demirkan;N. Smith;S. Duzgun
负责任的矿山关闭和重新利用是通过确保成功的环境恢复和减少社会经济风险来促进可持续发展的关键。然而，矿山关闭主要侧重于矿区的补救和恢复，对利益攸关方的观点以及关闭所产生的更广泛的社会、经济和文化影响的考虑有限。在本文中，我们使用利益相关者的投入，以评估和比较三种不同的再利用方案的尾矿坝地区的一个矿山在美国的科罗拉多州，预计将在未来20年内关闭。通过使用多属性效用理论（MAUT），我们确定哪种替代方案更好地反映了利益相关者的偏好，并在最经济，环境和社会可持续的结果。我们的研究结果表明，虽然利益相关者群体对矿山关闭和再利用背景下的可持续发展有不同的想法，但可以确定不同情景在多大程度上可以解决这些问题。我们认为，将利益相关者的意见纳入矿山关闭设计和再利用，可以导致更负责任和可持续的矿山关闭，这是独特的特定设置和利益相关者的需求，我们提供了一种方法，矿业公司可以用来了解利益相关者的优先事项和偏好。
Responsible mine closure and repurposing are key to contributing to sustainable development by ensuring successful environmental rehabilitation and reducing socioeconomic risks. However, mine closure has primarily focused on remediation and rehabilitation of mined lands with limited consideration of stakeholder perspectives and the broader social, economic, and cultural impacts of closure. In this paper, we use stakeholder input to evaluate and compare three different repurposing alternatives for the tailings dam area of a mine in the state of Colorado, USA, which is expected to close in the next twenty years. By using multi-attribute utility theory (MAUT), we determine which alternative better reflects stakeholder preferences and results in the most economically, environmentally, and socially sustainable outcome. Our results show that although stakeholder groups have different ideas about what constitutes sustainable development in the context of mine closure and repurposing, it is possible to identify to what extent different scenarios can address these perspectives. We argue that integrating stakeholder views into mine closure design and repurposing can lead to more responsible and sustainable mine closure that is unique to a particular setting and stakeholder needs, and we provide a methodology that mining companies may use to understand stakeholder priorities and preferences.