摘要
介绍了水中微颗粒能长期悬浮的原因，讨论了微颗粒混凝沉淀的影响因素及原理，并简单介绍了凝聚控制的几种方法。
The long - term suspension causes of particle in water were introduced. Theeffect factors and mechanism of condensing sediment of particle were discussed. And some kindsof control means of condensation were briefly introduced.
