Morphology of Colloidal Deposits in Porous Media

多孔介质中胶体沉积物的形态

• 批准号: 9634213
• 负责人: Mark Wiesner
• 金额: $ 17.9万
• 依托单位: William Marsh Rice University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-09-15 至 1999-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9634213&HistoricalAwards=false
• 关键词: Morphology; Colloidal; Deposits; Porous; Media

CTS - 9634213 Mark Weisner Rice University ABSTRACT This Project is an investigation of the effects of particle size and fluid flow on the morphology of colloidal deposits. Experiments will be performed to evaluate particle attachment on granular porous media and directly observe particular disposition using microscopy. The deposit morphology will be characterized by power-law relationships of mass distribution as determined by light scattering, sedimentation and image analysis. Theory will be developed to predict trends in deposit morphology based on physical-chemical characteristics. Monte Carlo simulation results will be compared to theory. The results may lead to an improved understanding of liquid-solid separations used in various manufacturing and environmental applications.

摘要本项目旨在研究粒径和流体流动对胶体沉积物形态的影响。将进行实验来评估颗粒在颗粒状多孔介质上的附着，并使用显微镜直接观察特定的分布。由光散射、沉积和图像分析确定的质量分布的幂律关系将表征沉积物的形态。将发展基于物理化学特征的理论来预测矿床形态的趋势。将蒙特卡罗仿真结果与理论进行比较。这些结果可能会导致对各种制造和环境应用中使用的液固分离的更好理解。