颗粒形态与异向聚沉速率——混凝形态学的动力学研究之一

PAR (?)ICLE SHAPE AND THE RATE OF PERIKINETIC COAGULATION A KINETIC STUDY IN FLOCCULATION MORPHOLOGY

从经典混凝理论出发,对高岭土、凹凸棒土、聚苯乙烯乳胶等三种不同形态的胶体体系,进行了大量的聚沉实验。在理论计算与实验结果对比分析的基础上,对颗粒的作用半径与等效半径进行了较为细致的分析,证实了经典混凝理论对球形颗粒聚沉动力学的偏差,并找出形态因素影响异向聚沉反应速率常数的根据。

Coagulation experiments on three colloid systems, with morphologically different particles,have been carried out. Base on contradistinguish study of theoretical calculation experimental result,the paper has meticulously analysised the action radius and the equivalent radius of particles. It is confirmed that the classic theory have some deviations in coagulation kinetics of non-spherical particles.It has found that shape factors influence the rate of perikinetic coagulation.