Fate of contaminants in groundwater and development of passive remediation systems

地下水污染物的归宿和被动修复系统的发展

基本信息

  • 批准号:
    RGPIN-2016-04381
  • 负责人:
  • 金额:
    $ 2.4万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Discovery Grants Program - Individual
  • 财政年份:
    2018
  • 资助国家:
    加拿大
  • 起止时间:
    2018-01-01 至 2019-12-31
  • 项目状态:
    已结题

项目摘要

The release of contaminants from legacy anthropogenic activities has resulted in large-scale contamination of groundwater, soils and sediments at many locations in Canada and around the world. As an example, mining and manufacturing activities have led to the release of toxic elements, including As, Cd, Co, Cu, Mo, Ni, Pb, Hg, Zn, and V that have now caused degradation of water quality or have accumulated in soils and sediments downstream from source areas. Due to the scale of the contamination, costly controls are required to minimize further degradation of water supplies and affected ecosystems. A number of approaches have been developed for remediating groundwater, sediment and soils and advances have been made over the past several decades. In situ remediation techniques are generally applied at contaminated sites that are less than several km2 in scale. Implementing remediation approaches at larger scales presents greater challenges due to limitations to site access and high costs for reagents. ******My recent research acitivities have focused on identifying low cost approaches for stabilizing contaminants that can be applied at the watershed scale. Projects we are conducting include studies to 1) understand the cycling of Hg and processes controlling Hg methylation in a dynamic watershed, 2) understand the fate of emerging contaminants, including explosives, pharmaceutical compounds, artificial sweeteners, and perfluorinated compounds in surface water, wastewater and groundwater, and 3) understand the fractionation of stable isotopes of Cr, Se, Cu, Zn and Ni as tools for delineating reaction mechanisms and reaction progress. We have evaluated new methods for stabilizing or treating contaminants in groundwater, waste materials and soils. I utilize a series of instruments, including a trace Hg analyzer, an automated methyl Hg analyzer, and ion chromatographs, a gas chromatograph, and a new high-performance liquid chromatograph/electrospray triple quadrupole mass spectrometer. I also have access to a multi-collector inductively coupled plasma mass spectrometer through collaboration. We have applied novel synchrotron techniques to further understand reaction mechanisms. ******During the next five years, I plan to accelerate my research activities to assess remediation strategies that can be applied to large-scale contaminated sites. I will conduct laboratory studies to evaluate the application of reactive media as co-blending reagents to stabilize metals in contaminated soils and sediments. I will study the fate of emerging contaminants in the subsurface and identify sustainable treatment approaches. I will continue to develop novel tools to characterize the effectiveness of remediation systems. The overall goal is to work towards improving the environment in a practical, cost-effective and technically sound manner. **
遗留的人为活动释放的污染物导致加拿大和世界各地许多地方的地下水、土壤和沉积物受到大规模污染。例如,采矿和制造活动导致有毒元素的释放,包括砷、镉、钴、铜、钼、镍、铅、汞、锌和钒,这些元素现在已造成水质退化或在污染源地区下游的土壤和沉积物中积累。由于污染的规模,需要采取昂贵的控制措施,以最大限度地减少供水和受影响生态系统的进一步退化。在过去的几十年里,已经开发了许多修复地下水、沉积物和土壤的方法,并取得了进展。就地修复技术通常应用于规模小于几平方公里的受污染场地。由于场地准入的限制和试剂的高昂成本,在更大范围内实施补救办法带来了更大的挑战。*我最近的研究活动侧重于确定可在分水岭范围内应用的稳定污染物的低成本方法。我们正在进行的项目包括:1)了解汞在动态分水岭中的循环和控制汞甲基化的过程;2)了解新出现的污染物,包括地表水、废水和地下水中的炸药、药物化合物、人工甜味剂和全氟化合物的去向;3)了解铬、硒、铜、锌和镍的稳定同位素的分馏,以此作为描述反应机理和反应进程的工具。我们评估了稳定或处理地下水、废物和土壤中污染物的新方法。我使用了一系列的仪器,包括痕量汞分析仪,自动甲基汞分析仪,离子色谱仪,气相色谱仪,以及新的高效液相色谱仪/电喷雾三重四极杆质谱仪。我还通过合作获得了一台多收集器电感耦合等离子体质谱仪。我们应用了新的同步加速器技术来进一步了解反应机理。*在未来五年,我计划加快我的研究活动,以评估可以应用于大规模污染场地的补救策略。我将进行实验室研究,以评估反应介质作为共混合试剂的应用,以稳定受污染土壤和沉积物中的金属。我将研究地下新出现的污染物的命运,并确定可持续的处理方法。我将继续开发新的工具来表征补救系统的有效性。总体目标是以实际、成本效益高和技术健全的方式努力改善环境。**

项目成果

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Ptacek, Carol其他文献

Ptacek, Carol的其他文献

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{{ truncateString('Ptacek, Carol', 18)}}的其他基金

Passive Approaches for Long-term Management of Mine Wastes and Hazardous Substances
矿山废物和有害物质长期管理的被动方法
  • 批准号:
    RGPIN-2022-03754
  • 财政年份:
    2022
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Fate of contaminants in groundwater and development of passive remediation systems
地下水污染物的归宿和被动修复系统的开发
  • 批准号:
    RGPIN-2016-04381
  • 财政年份:
    2021
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Fate of contaminants in groundwater and development of passive remediation systems
地下水污染物的归宿和被动修复系统的开发
  • 批准号:
    RGPIN-2016-04381
  • 财政年份:
    2020
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Fate of contaminants in groundwater and development of passive remediation systems
地下水污染物的归宿和被动修复系统的发展
  • 批准号:
    RGPIN-2016-04381
  • 财政年份:
    2019
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Fate of contaminants in groundwater and development of passive remediation systems
地下水污染物的归宿和被动修复系统的发展
  • 批准号:
    RGPIN-2016-04381
  • 财政年份:
    2017
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Fate of contaminants in groundwater and development of passive remediation systems
地下水污染物的归宿和被动修复系统的发展
  • 批准号:
    RGPIN-2016-04381
  • 财政年份:
    2016
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Remediation of mercury contaminated sediments
汞污染沉积物的修复
  • 批准号:
    486026-2015
  • 财政年份:
    2016
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Collaborative Research and Development Grants
Remediation of mercury contaminated sediments
汞污染沉积物的修复
  • 批准号:
    486026-2015
  • 财政年份:
    2015
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Collaborative Research and Development Grants
Fate and remediation of contaminants in groundwater
地下水污染物的归宿和修复
  • 批准号:
    138232-2011
  • 财政年份:
    2015
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Fate and remediation of contaminants in groundwater
地下水污染物的归宿和修复
  • 批准号:
    138232-2011
  • 财政年份:
    2014
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual

相似海外基金

Fate of contaminants in groundwater and development of passive remediation systems
地下水污染物的归宿和被动修复系统的开发
  • 批准号:
    RGPIN-2016-04381
  • 财政年份:
    2021
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Fate of contaminants in groundwater and development of passive remediation systems
地下水污染物的归宿和被动修复系统的开发
  • 批准号:
    RGPIN-2016-04381
  • 财政年份:
    2020
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Fate of contaminants in groundwater and development of passive remediation systems
地下水污染物的归宿和被动修复系统的发展
  • 批准号:
    RGPIN-2016-04381
  • 财政年份:
    2019
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Fate of contaminants in groundwater and development of passive remediation systems
地下水污染物的归宿和被动修复系统的发展
  • 批准号:
    RGPIN-2016-04381
  • 财政年份:
    2017
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Fate of contaminants in groundwater and development of passive remediation systems
地下水污染物的归宿和被动修复系统的发展
  • 批准号:
    RGPIN-2016-04381
  • 财政年份:
    2016
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Fate and remediation of contaminants in groundwater
地下水污染物的归宿和修复
  • 批准号:
    138232-2011
  • 财政年份:
    2015
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Fate and remediation of contaminants in groundwater
地下水污染物的归宿和修复
  • 批准号:
    138232-2011
  • 财政年份:
    2014
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Fate and Remediation of Emerging Contaminants in Groundwater
地下水中新兴污染物的归宿和修复
  • 批准号:
    450142-2013
  • 财政年份:
    2013
  • 资助金额:
    $ 2.4万
  • 项目类别:
    University Undergraduate Student Research Awards
Fate and remediation of contaminants in groundwater
地下水污染物的归宿和修复
  • 批准号:
    138232-2011
  • 财政年份:
    2013
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
Fate and remediation of contaminants in groundwater
地下水污染物的归宿和修复
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    138232-2011
  • 财政年份:
    2012
  • 资助金额:
    $ 2.4万
  • 项目类别:
    Discovery Grants Program - Individual
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