NSERC Industrial Research Chair in Fractured Rock Contaminant Hydrology

NSERC 裂隙岩污染物水文学工业研究主席

• 批准号: 363783-2018
• 负责人: Parker, Beth
• 金额: $ 31.8万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Industrial Research Chairs
• 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=719017
• 关键词: NSERC; Industrial; Research; Chair; Fractured

Groundwater in sedimentary bedrock (i.e., bedrock aquifers) is the most important source of fresh water inCanada and globally; however, many of these aquifers are polluted due to a large variety of human activities.Chlorinated organic solvents are the most common industrial contaminant found in groundwater. Little isknown about how subsurface conditions affect movement of these contaminants from source areas to receptorsbecause of over-reliance on poor characterisation tools. Dr. Parker, with her NSERC Industrial Research Chairon Groundwater Contamination in Fractured Rock (held since 2007), has overcome these limitations using newtechnologies and detailed field and laboratory measurements applied to real contaminated sites. Dr. Parker andher research team show that pollutants move quickly from their source through rock fractures but are slowed byspreading into the bedrock pores accessed through many active fractures where they are sorbed to minerals andslowly degrade due to naturally occurring chemical and microbial reactions. Over many decades the plumesbecome stationary or even retreat back toward source areas. The next five years of research will usemeasurement and computer modeling insights to predict future conditions and rates of natural or enhancedremediation to hasten cleanup. Results will be useful for sedimentary rock aquifers worldwide, informingdecisions regarding groundwater contamination threats to water supply wells and ecosystems, and how toprotect both. This work enables reliable, cost-effective management and eventual cleanup of polluted sites andpositions Canadians as world leaders in groundwater science, technology manufacturing, and resourceprotection. This is achieved through hands-on student training at real-world sites and improved methods andtechnologies for protecting a global resource that is critical for sustaining life and supports producing food andmanufacturing.

沉积基岩中的地下水（即基岩含水层）是加拿大乃至全球最重要的淡水来源；然而，由于各种各样的人类活动，许多这些含水层受到污染。氯化有机溶剂是地下水中最常见的工业污染物。由于过度依赖较差的表征工具，人们对地下条件如何影响这些污染物从源区到受体的运动知之甚少。帕克博士和她的NSERC工业研究主席裂隙岩石中的地下水污染（自2007年以来）已经克服了这些限制，使用新技术和详细的现场和实验室测量应用于实际污染地点。帕克博士和她的研究小组表明，污染物通过岩石裂缝从源头迅速移动，但通过许多活动裂缝进入基岩孔隙，它们被矿物质吸收，并由于自然发生的化学和微生物反应而缓慢降解，从而减慢了速度。几十年后，这些羽流变得静止，甚至向源区撤退。未来五年的研究将使用测量和计算机建模的见解来预测未来的条件和自然或加强补救的速度，以加速清理。研究结果将对世界各地的沉积岩含水层有用，为地下水污染对供水井和生态系统的威胁以及如何保护两者的决策提供信息。这项工作使可靠、经济的管理和最终的污染清理成为可能，并使加拿大在地下水科学、技术制造和资源保护方面处于世界领先地位。这是通过学生在现实世界现场的实践培训和改进的方法和技术来实现的，以保护对维持生命和支持食品生产和制造业至关重要的全球资源。