Quantifying the impacts of coupled physical and bio-geochemical processes on metal transport in groundwater

量化物理和生物地球化学耦合过程对地下水中金属迁移的影响

• 批准号: RGPIN-2021-03807
• 负责人: Amos, Richard
• 金额: $ 2.19万
• 依托单位: Carleton University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=751116
• 关键词: Quantifying; impacts; coupled; physical; bio

Throughout Canada and globally groundwater resources are under continuous threat from industry and other anthropogenic activities. The protection of this resource is vital for the health of humans and ecosystems, and economic security. Canada's economy relies heavily on the resource sector, but these activities, due to their nature and scale have significant impact on the environment. For example, mining operations, including mineral and petroleum resources, generate waste products that have potential to leach contaminant, and particularly toxic metals, into the environment. The transport and fate of contaminants in groundwater and in soils often involve complex biogeochemical reactions coupled to physical transport and attenuation processes. The objectives of this research program are to better understand and quantify these coupled biogeochemical and physical processes, to determine the effect of this coupling on the fate of metals in groundwater and subsurface systems, and to evaluate the impact on mitigation and remediation strategies. These objectives will be carried out through extensive detailed laboratory experiments and analysis of data collected from large-scale field projects, coupled with the development and implementation of numerical models to understand the controlling physical and geochemical processes. The proposed research will provide new insights into how contaminants move near largescale industrial activities, particularly the movement of metals around both mineral and oil sands mining sites. These new insights will help industry and government to implement more effective policies and practices to better protect the environment and reduce the cost associated with remediation and mitigation. The research will provide training to highly qualified personnel in the area of mine waste management and industrial contaminant remediation allowing them to become leaders in the field and allowing them to continue research or take up important roles within industry, government or within Canada's world leading environmental consulting industry.

整个加拿大和全球地下水资源都受到工业和其他人为活动的不断威胁。该资源的保护对于人类和生态系统的健康以及经济安全至关重要。加拿大的经济在很大程度上依赖资源部门，但是由于其性质和规模，这些活动对环境产生了重大影响。例如，包括矿物质和石油资源在内的采矿业务产生的废物产生了有可能进入环境中的污染物，尤其是有毒金属的废物。地下水和土壤中污染物的运输和命运通常涉及复杂的生物地球化学反应，并结合了物理运输和衰减过程。该研究计划的目标是更好地理解和量化这些耦合的生物地球化学和物理过程，以确定这种耦合对地下水和地下系统中金属命运的影响，并评估对缓解和补救策略的影响。这些目标将通过广泛的详细实验室实验以及从大规模现场项目收集的数据进行分析，再加上数值模型的开发和实施，以了解控制物理和地球化学过程。拟议的研究将提供有关污染物如何在大型工业活动附近移动的新见解，尤其是矿物和油砂挖掘地点周围金属的运动。这些新的见解将有助于行业和政府实施更有效的政策和实践，以更好地保护环境，并降低与补救和缓解相关的成本。这项研究将为矿物废物管理和工业污染物补救领域的高素质人员提供培训，使他们能够成为该领域的领导者，并允许他们继续研究或在工业，政府或加拿大世界领先的环境咨询行业中扮演重要角色。