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: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=742725
• 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不断受到工业和其他人类活动的威胁。保护这一资源对于人类和生态系统的健康以及经济安全至关重要。加拿大经济严重依赖资源部门，但这些活动因其性质和规模而对环境产生重大影响。例如，包括矿物和石油资源在内的采矿作业会产生废物，这些废物有可能将污染物，特别是有毒金属浸入环境中。地下水和土壤中污染物的迁移和归宿通常涉及复杂的生物地球化学反应以及物理迁移和衰减过程。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，确定这种耦合对地下水和地下系统中金属的命运的影响，并评估对缓解和修复策略的影响。这些目标将通过广泛详细的实验室实验和对大型现场项目收集的数据的分析，以及数值模型的开发和实施来实现，以了解控制物理和地球化学过程。拟议的研究将为污染物如何在大规模工业活动附近移动提供新的见解，特别是矿物和油砂采矿场周围金属的移动。这些新见解将帮助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修复和缓解相关的成本。该研究将为矿山废物管理和工业污染物修复领域的高素质人员提供培训，使他们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机构中担任重要角色行业。