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(即基岩含水层)中的地下水是加拿大和全球最重要的淡水来源；然而，由于各种人类活动，许多这些含水层受到了污染。氯化有机溶剂是地下水中最常见的工业污染物。由于过度依赖糟糕的表征工具，人们对地下条件如何影响这些污染物从源头地区向接收器的移动知之甚少。Parker博士与她的NSERC工业研究中心ChaIron地下水污染研究中心(自2007年成立)一起，利用新技术以及应用于真实受污染地点的详细现场和实验室测量，克服了这些限制。帕克博士和她的研究团队表明，污染物通过岩石裂隙从源头快速移动，但通过许多活跃的裂隙进入基岩孔隙而缓慢扩散，在那里它们被矿物吸附，并由于自然发生的化学和微生物反应而缓慢降解。在几十年的时间里，羽流变得静止不动，甚至退回到源头地区。未来五年的研究将使用测量和计算机建模的洞察力来预测未来的条件和自然或强化修复的速度，以加快清理工作。研究结果将对世界各地的沉积岩含水层有用，为有关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。这项工作能够对污染场地进行可靠、成本效益高的管理和最终的清理，并使加拿大人在地下水科学、技术制造和资源保护方面处于世界领先地位。这是通过在真实世界地点进行学生实践培训以及改进保护全球资源的方法和技术来实现的，全球资源对维持生命至关重要，并支持食品和制造业的生产。