摘要
结合传统沉淀技术和结晶技术,在碳酸钙自发成核和外加晶核条件下,以控制过饱和度的方式,进行水软化试验。经研究结果显示,自发成核条件下未发现晶体颗粒的生长;而在外加晶核条件下,晶体具有一定程度的生长,但不同SRT下晶体粒径之间的差异并不明显,其可能原因为反应时间较短,及晶核在循环过程中被破坏。
By integrating the conventional precipitation with crystallization,it was carried out the water softening experiment in the method of controlling supersaturation under the conditions of auto-crystallization and additive seeds respectively.During the auto-crystallization,it was not found that the crystals grew up;however,CaCO_3 crystals grew up through adding the seed.The distinctions between the particles at different SRT conditions are not apparent because of the experiment equipment or the short experiment time.
出处
《环境工程》
CAS
CSCD
北大核心
2009年第S1期20-23,共4页
Environmental Engineering
关键词
介稳区
沉淀
结晶
晶核
软化
SRT
Metastability
precipitation
crystallization
crystal seeds
softening
SRT
