某些除氟方法除氟效能分析  

Analysis of Defluoridation Effect in some Defluoridative Methods

作　　者：王连方[1] 张玲[1] 王生玲[1] 杨杨[1] 

机构地区：[1]新疆地方病防治研究所,新疆乌鲁木齐830002

出　　处：《地方病通报》1999年第1期20-22,共3页Endemic Diseases Bulletin

基　　金：新疆卫生厅资助

摘　　要：本实验室就一些除氟技术作了除氟效果比较试验。混凝沉淀组11种实验的除氟剂中4种（1种铝制剂，3种提取骨盐制剂）在4～80小时内可将含氟10．5mg／L水的氟浓度降到1．0mg／L。5种铝制剂先降到了可接受的1．0mg／L，然后又上升；提取的骨盐制剂随着时间的延长除氟效能增高。在吸附滤过组，以提取骨盐为最好；活性氧化铝可从水中清除较高氟，但必须先用铝盐处理。活性氧化铝除氟效能受处理水的流程方式影响，同样量滤料双向流程除氟量明显高于下行式流程。A series of defluoridative tests vere made to compare the defluoridation effect in some defluoridation methods in our laboratory. In group of coagulent precipitation, it was found that four reagents (one aluminium compound, three purified bone salts) among eleven defluoridation reagents tested could reduce the concentration of fluoride in water from 10. 5 mg/L to less than 1. 0 mg/L In period of 4-80 hours, that five aluminium reagents showed appearance of reducing the fluoride to acceptable limt (<1. 0 mg/L) first but then increasing again, and the effect of defluoridation carried on increasing with the prolonged time in the reagent of purified bonesalt. In group of adsorbent filtration, the capacity of defluoridation in purified bonesalt was higher than that of the other filtration materials (bone char, activated alumia). The activated alumia could remove more fluoride from drinking water, but it had to be treated by aluminium compound before treating water. The efficacy of defluoridation of activated alumia was affected by the way of flow course in treatment water also. The amount of fluoride removed by double-way (down first and then up way) was obviously higher than that by down-way in same weight of filtration material.

关 键 词：除氟方法 地方性氟中毒 流行病学 

分 类 号：R599.01[医药卫生—内科学]