摘要
混凝研究的理论与实践近三十年来得到长足的发展,很大的原因在于现代检测技术与手段的大力运用,激光光散射为其中得力的方法之一。本文对其基本操作原理作了简要介绍,并对测定过程中存在的若干问题作了探讨。然后就其在混凝领域中诸层次的研究现状与发展趋势进行了若干概括。本文试图阐明其应用于混凝领域的研究所具有的巨大潜力及困难与局限所在。
Laser light scattering (LLS) is a powerful technique for particle characterization or dynamic monitoring of particle-particle interaction. As the technique continues to develop, LLS is emerging as an important means for coagulation research, not only for static or in-situ characterization of coagulant speciation, aquatic particle size distribution, uniform colloid dispersions, but also for fractal dimension detection, coagulation rate constant determination. This paper reviews the“state of the art”in LLS with regard to theoretical considerations, technological advances, and current and potential applications in coagulation research.
关键词
混凝
激光光散射
水体颗粒物
混凝动力学
Coagulation
Laser light scattering
Aquatic particulate
Fractal
Coagulation kinetics