Metal isotope ratios as indicators of dissolved metal release and attenuation

金属同位素比作为溶解金属释放和衰减的指标

• 批准号: 413161-2011
• 负责人: Blowes, David
• 金额: $ 13.19万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=491457
• 关键词: Metal; isotope; ratios; indicators; dissolved

The release of metals at mine sites, mineral processing facilities, and mine waste disposal areas can result in contamination of groundwater resources. Dissolved metals such as Cu, Ni, and Zn can migrate along the groundwater flow path, and may be attenuated by reactions with the aquifer minerals and through microbially-mediated biogeochemical reactions. Enhancing these attenuation reactions forms the basis for many in situ groundwater remediation systems. This research project will use measurements of stable isotope ratios of Cu, Ni, and Zn to determine reaction mechanisms controlling the concentrations of dissolved metals in groundwater. The research will encompass mine wastes and in situ groundwater treatment systems. The

矿区、矿物加工设施和矿山废物处理区释放的金属可能导致地下水资源污染。溶解的金属如Cu、Ni和Zn可沿着地下水流路径迁移，并可通过与含水层矿物的反应以及通过微生物介导的生物地球化学反应而衰减。增强这些衰减反应形成了许多原位地下水修复系统的基础。该研究项目将使用Cu、Ni和Zn的稳定同位素比率的测量来确定控制地下水中溶解金属浓度的反应机制。这项研究将包括矿山废物和就地地下水处理系统。的