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

0117622 Somasundaran描述：该奖项支持美国和印度的合作研究，题为“粒子种群平衡框架中胶体悬浮液的絮凝分散模型”。胶体悬浮液的絮凝和分散是制浆造纸、矿物和陶瓷加工、水处理等许多工业活动中的重要单元操作。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。他们将开发一个全面的数学模型，其中包括聚集、粒间力、流体力学和聚合物吸附等各种现象。虽然已经对絮凝过程进行了广泛的建模，但拟议的工作将是整合各个子过程的第一次尝试。新模型将通过与现有实验数据的比较来验证。然后，该模型的预测将通过进行新的实验进行测试。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和开发中心的P.PRadip和P.C.Kapur。PI是一个由世界级科学家组成的团队，他们有很好的机会实现他们的研究目标。发展一个预测絮凝动力学的综合模型将对净水、废物处理、产品配方、选矿方案和环境修复非常有用。该项目由国际项目部和印度政府科学与技术部共同资助。

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.