Transport of Colloids in Ground Water: A Chemical-ColloidalApproach

该奖项旨在支持溶液化学的作用、固-溶界面的化学特性以及胶体与多孔介质相互作用对地下水中胶体运移的研究。该项目的目标是为这些现象建立一个理论框架，然后进行实验室实验，以评估影响多孔介质含水层中胶体运动的化学因素。在发展输运模型中，计划采用的方法将结合传质的基本理论，考虑多孔介质中胶体的流体动力学，胶体相互作用和稳定性。该奖项的提案是根据NSF项目公告：研究启动奖，NSF 88-99提交的。研究结果有望为描述悬浮在水中的胶体颗粒在通过多孔介质（如地下水含水层或水处理系统中的过滤过程）时的命运提供科学依据。除了作为污染物的作用外，胶体颗粒还可以作为细菌和病毒运输的载体。这项研究的结果也可以应用于工程设计系统，以隔离含水层，使其免受危险废物处置场所渗漏的潜在污染。

This is an award to support research on the role of solution chemistry, chemical characteristics of the solid- solution interface and colloidal interactions with porous media on the transport of colloids in groundwater. Objectives of this project are to develop a theoretical framework for these phenomena and then to conduct laboratory experiments to evaluate the chemical factors that affect movement of colloids in porous media aquifers. The approach planned in developing the transport model will be to combine fundamental theories of mass transfer, consideration of the hydrodynamics of colloids in porous media, colloidal interaction and stability. The proposal leading to this award was submitted in accord with the NSF Program Announcement: Research Initiation Awards, NSF 88-99. Results are expected to provide a scientific base for characterizing the fate of colloidal particles that are suspended in water as they move through a porous medium such as a groundwater aquifer or a filtration process in a water treatment system. In addition to their role as pollutants, colloidal particles can serve as the vehicle for transport of bacteria and viruses. Results of this research may also be applied to engineering design of systems to isolate aquifers from potential contamination by seepage from hazardous waste disposal sites.