氯化钙去除铝工业废水中低浓度氟离子的研究  

Study on Removal of Low Concentrations of Fluoride Ions with Calcium Chloride in Aluminum Industry

作　　者：周登凤[1] 凌敏[1] 

机构地区：[1]贵州理工学院材料与冶金工程学院,贵州贵阳550003

出　　处：《贵州工业职业技术学院学报》2014年第3期22-23,32,共3页GUIZHOU SCIENCE AND TECHNOLOGY PROFESSIONAL COLLEGE

摘　　要：本文对铝工业废水中的氟离子采用氯化钙除氟方案，通过对反应时间、氯化钙添加量、搅拌强度等影响因素进行控制，得出将废水中氟离子浓度降低到1mg／L以下的实验参数为搅拌强度100转／分钟，氯化钙添加量过量50％，反应时间20分钟，添加氯化钙后的pH值在11．33左右。In this paper, calcium -fluoride -solution method is used to remove fluoride ions in industrial aluminum wastewater. By controlling the reaction-time, the amount of added, calcium chloride stirring intensity and other factors, the experiment showed that the experimental parameters when fluoride concentration in the wastewater is reduced to 1 mg/L are the following：the stirring intensity is 100 revolutions / min; amount of ealcium chloride excess50% ; and the reaction time is 20 minutes;pH is about 11.33 after adding calcium chloride.

关 键 词：氯化钙 低浓度氟离子 去除 反应时间 

分 类 号：TQ03[化学工程]