Soil remediation and dynamics hydraulic properties

污染土地的修复是一个复杂且极具挑战性的科学问题。土壤中的污染物不仅对与其接触的植物、动物和人类构成直接威胁，而且也是地下水严重和持久的污染源。我们有真实的迫切需要更好地了解土壤和地下水中污染物的命运和持久性。我们预测土壤污染物行为的能力的一个复杂问题和限制是，由于污染物本身的存在及其对土壤性质的影响，水流过土壤的速率和土壤中储存的水量可能会随着时间的推移而变化。这项研究将推进我们对这些关系的了解，并为更好地预测与我们的土壤和地下水资源相关的风险和威胁提供基础。这项研究将作为系统的高度仪器化的实验室实验的组合进行，目标是土壤中污染物和水流之间的联系和反馈，以及开发新的数学表达式和模型，以更好地预测行为。最终，这项研究将为改善土壤修复实践和潜在的新修复方法奠定基础，以恢复受污染的土地和保护地下水资源。八名学生（本科生，硕士和博士）在本研究计划的培训将有先进的土壤和地下水污染的知识，并将在加拿大的环境部门找到就业机会，这对高素质的人才大大超过供应的需求。

The remediation of contaminated lands is a complex and highly challenging scientific problem. Contaminates in soils not only pose a direct threat to the plants, animal, and humans that are in contact with them, but also are a serious and persistent source of contamination for groundwaters. There is a real and pressing need for us to better understand the fate and persistence of contaminants in soils and groundwaters. One of the complicating issues and limitations to our ability to predict the behavior of soil contaminants is that the rate water flows through the soil and the amount of water stored in the soil can change over time due to the presence of the contaminants themselves and their effects on soil properties. This research will advance our knowledge of those relationships and provide the foundation to better predict the risks and threats associated with our soil and groundwater resources. This research will be conducted as a combination of systematic highly instrumented laboratory experiments targeting the linkage and feedback between contaminants and water flow in soils and the development of new mathematical expressions and models to better predict the behaviors. Ultimately this research will lay the foundation for improved soil remediation practices and potentially new remediation methods to reclaim contaminated lands and protect groundwater resources. The eight students (undergraduates, Master's, and PhD) trained in this research program will have advanced knowledge of soil and groundwater contamination and will find employment in Canada's environmental sector which has demands for highly qualified personnel which substantially exceed the supply.