Dissolution and Droplet Formation From A Surface Slick in Riverine Environments

这个项目的目的是对河流环境中的溶解和液滴形成过程进行实验研究，作为建立比目前用于预测地表水微水溶性污染物的运输和命运的更好的数学模型的一步。实验将在一个移动床水槽中进行，该水槽是专门为进行界面传递实验而设计的。水槽模拟水流中影响水体中目标污染物溶解、液滴形成速率和平衡浓度的条件。微溶性液体在地表水上的溢出导致表面浮油的形成，浮油沿着水的流动方向移动，同时在流动的水中溶解、蒸发并形成液滴。与这些液体泄漏有关的环境问题与泄漏液体的运输特性和液体流过的床的特性有关。预计这项研究的结果将改进缓解措施的工程设计，这些措施可用于减少这些污染物对地表水供应质量的污染影响，为其预定用途做准备。

9522171 Gulliver The objective of this project is to conduct experimental investigation of the dissolution and droplet formation processes in riverine environments as a step toward formulation of better mathematical models than are currently available for use in prediction of the transport and fate of slightly water-soluble pollutants of surface waters. The experiments will be performed in a moving-bed flume that was specifically designed for conduct of interfacial transfer experiments. The flume simulates conditions in flowing streams that affect dissolution, rate of droplet formation and the equilibrium concentration of the target pollutant in the polluted water. Spills of slightly soluble liquids on surface waters result in the formation of surface slicks that move in the direction the water is flowing while dissolving, evaporating and forming droplets in the flowing water. Environmental issues associated with spills of these liquids relate to the transport properties of the spilled liquid and the characteristics of the bed over which the liquid flows. Results of this research are expected to improve the engineering design of mitigation measures that can be applied to reduce the pollutional impact of these pollutants on the quality of surface water supplies in preparation for their intended use.