US-India Cooperative Research: Modeling Flocculation-Dispersion of Colloidal Suspensions in a Particle Population Balance Framework

描述：该奖项支持美印合作研究，题为“在粒子种群平衡框架中模拟胶体悬浮液的絮凝-分散”。胶体悬浮液的絮凝和分散是许多工业活动中重要的单元操作，如纸浆和造纸、矿物和陶瓷加工以及水处理。调查人员将对絮凝/分散过程中列举的九个步骤进行详细研究。他们将开发一个综合的数学模型，包括各种现象，如聚集，粒子间力，流体动力学和聚合物吸附。虽然絮凝过程已经广泛建模，但提出的工作将是第一次尝试整合各种子过程。新模型将通过与现有实验数据的比较来验证。然后，将通过进行新的实验来验证该模型的预测。范围：这项研究的合作者是哥伦比亚大学的P. Somasundaran和印度浦那塔塔研究设计与开发中心的P. Pradip和P. c . Kapur。pi是一个世界级的科学家团队，他们有很好的机会实现他们的研究目标。开发一个综合模型来预测絮凝动力学将对水净化、废物处理、产品配方、矿物选矿方案和环境修复非常有用。该项目由国际项目司和印度政府科技部联合资助。

0117622Somasundaran Description: This award supports US-India cooperative research entitled "Modeling Flocculation-Dispersion of Colloidal Suspensions in a Particle Population Balance Framework." Flocculation and dispersion of colloidal suspensions are important unit operations in many industrial activities such as pulp and papermaking, mineral and ceramics processing, and water treatment. The investigators will undertake a detailed study of the nine enumerated steps in the flocculation/dispersion process. They will develop a comprehensive mathematical model that includes a variety of phenomena such as aggregation, interparticle forces, hydrodynamics and polymer adsorption. Although flocculation processes have been extensively modeled, the proposed work will be the first attempt to integrate the various subprocesses. The new model will be validated by comparison with existing experimental data. Predictions from the model will then be tested by performing new experiments. Scope: The collaborators for this research are P. Somasundaran, Columbia University and P. Pradip and P.C. Kapur, Tata Research Design and Development Centre, Pune, India. The PIs are a team of world class scientists that have an excellent chance of achieving their research objectives. Development of a comprehensive model to predict the kinetics of flocculation will be very useful for water purification, waste treatment, product formulation, mineral beneficiation schemes, and environmental remediation. This project is jointly funded by the Division of International Programs and the Government of India's Department of Science & Technology.