In situ recovery of resources from waste repositories

从废物储存库就地回收资源

• 批准号: NE/K015761/1
• 负责人: Devin Sapsford
• 金额: $ 7.24万
• 依托单位: CARDIFF UNIVERSITY
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2013
• 资助国家: 英国
• 起止时间: 2013 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FK015761%2F1
• 关键词: situ; recovery; resources; waste; repositories

The proposed research seeks to undertake scoping work with academia and industry to develop a new and exciting research field related to mining resources from landfill that seeks to address the following central question: Can resources (materials of value e.g. metals, rare earth elements, plastics, energy) be recovered by leaching waste repositories whilst the material lies in situ, thus avoiding the need to actively mine the material? The fundamental geoscience research question that underpins this is: How can we understand and manipulate the in situ biogeochemistry of the waste within the repository to solubilise resources and recover them through leaching?The concept and technology of in situ leaching has been developed in the mining industry for recovery of uranium and copper, and is done by circulating solutions to extract the elements and/or stimulating and enhancing microbial leaching. No-one has looked at the possibility of transfering this concept for application to recovery of resource from waste repositories. Wastes display diverse compositions, mineralogies, textures very different to that of ores and thus will require new science to understand and develop leaching methods to solubilise valuable components.We will during the scoping stage be considering resource extraction the full range of wastes currently in UK landfills including industrial snd commercial waste (anticipated to be metal-rich), incinerator and fuel ash, mineral wastes, municipal waste and agricultural wastes to examine the idea of in situ leaching. We are particulary keen to identify during the grant which types of landfilled waste streams might be relatively enriched in certain resources and focus the full research proposal on recovery from these wastes. We envisage that in situ leaching could sidestep many of the problems that prevent realisation of the resource potential of former landfill sites, with important impacts not only in the UK but internationally. Furthermore, our aim is to not only investigate means to recover resource through in situ leaching but to also investigate how we can appropriately benchmark such processes (which we believe will have substantially lower environmental and human health impacts) in terms of life-cycle, human health and ecosystems service costs for comparison to retrieval of landfilled resources by 'conventional' dig-and-process landfill mining and against conventional mining of the same resources.

拟议的研究旨在与学术界和工业界进行范围确定工作，以开发一个与垃圾填埋场采矿资源相关的新的令人兴奋的研究领域，旨在解决以下核心问题：资源（如金属、稀土元素、塑料、能源等有价值的材料）能否通过在材料处于原位时浸出废物库来回收，从而避免主动开采材料？支撑这一点的基本地球科学研究问题是：我们如何理解和操纵储存库中废物的原位生物地球化学，以溶解资源并通过浸出回收它们？就地浸出的概念和技术是在采矿业中为回收铀和铜而发展起来的，它是通过循环溶液提取元素和/或刺激和加强微生物浸出来完成的。没有人研究过将这一概念应用于从废物储存库中回收资源的可能性。废物显示出不同的成分、矿物学和质地，与矿石非常不同，因此需要新的科学来理解和开发浸出方法，以溶解有价值的成分。在确定范围阶段，我们将考虑对目前在英国垃圾填埋场的所有废物进行资源提取，包括工业和商业废物（预计富含金属）、焚化炉和燃料灰、矿物废物、城市废物和农业废物，以研究就地浸出的想法。我们特别希望在拨款期间确定哪种类型的堆填废物流可能含有相对丰富的某些资源，并将整个研究建议集中于从这些废物中回收。我们设想，就地浸出可以避免许多阻碍实现前垃圾填埋场资源潜力的问题，不仅在英国，而且在国际上产生重要影响。此外，我们的目标不仅是研究通过原位浸出回收资源的方法，而且还研究我们如何能够在生命周期、人类健康和生态系统服务成本方面适当地对这些过程进行基准测试（我们认为这些过程对环境和人类健康的影响将大大降低），以便与“传统”挖掘和加工填埋场采矿回收垃圾填埋资源进行比较，并与相同资源的传统采矿进行比较。

项目成果

In Situ Resource Recovery from Waste Repositories: Exploring the Potential for Mobilization and Capture of Metals from Anthropogenic Ores

• DOI: 10.1007/s40831-016-0102-4
• 发表时间: 2017-06-01
• 期刊: JOURNAL OF SUSTAINABLE METALLURGY
• 影响因子: 2.4
• 作者: Sapsford, Devin;Cleall, Peter;Harbottle, Michael
• 通讯作者: Harbottle, Michael