Hydrodynamic Properties of Flocculation and Dispersion of Clay Colloid

“目前研究的目标是清晰度，即对光线胶体悬浮液分析行为的框架，其中一个是水生环境中的重要问题。”已获得的结果汇总为以下结果：1.由于使用彩色模型，我们已经成功地开发了一个实验程序，以标准化湍流流动在碰撞频率之间的条件下的混合强度。开发的程序已应用于桥接流程的分析。使用这种方法，pdymermolecules的吸收过程被揭示为氢动力学的术语和该过程的速率常数，被确定为最小的。流量的强度也在标准的湍流流中进行了分析。We submitted the very simple model to describe the strengh of floc（F）as follows ： F= N_c·fwhere N_c is the number of contacts between clusters and f is the cohesive strength at each contact.4.所开发的程序已经被转换成非常有效的方法，以便在粘土颗粒中分析系统。在一个分散的系统中，静电双层层的存在及其相互作用被发现对确定粘土悬浮液的流变学是非常重要的。

The objective of present research is to clarity the framework of the analysis of the behavior of lay colloid suspension which is vital issue in aquatic enviroment. The obtained results are summariged as follows :1. By using the model colloid, we have successfully developed the experimental procedure to standardize the mixing intensity of turbulent flow in terms of collision frequency between colloidal particles.2. The developed procedure is applied to the analysis of bridging flocculation. With this method, the adsorbing process of pdymer molecules was revealed in terms of hydrodynamics and the rate constant of this process, was determined.3. The strength of flocs is also analysed in the standardiged turbulent flow. We submitted the very simple model to describe the strengh of floc(F)as follows : F=N_c・fwhere N_c is the number of contacts between clusters and f is the cohesive strength at each contact.4. The developed procedure was turned out to be very effective to analyze the system involved in clay particles.5. In the dispersed system, the presence of electrostatic double layer and their interaction were found to be very important to determine the rheology of clay suspension.