摘要
作者对磷酸氢钙、硫酸铝钾、氢氧化钙和骨碳的除水氟效果、速度以及除氟后水中钙磷含量进行了比较。含氟水中的原始氟浓度为０．５３ｍｍｏｌ／Ｌ。每１００ｍｌ含氟水中加入８０ｍｇ的十二水硫酸铝钾在１ｈ内可将氟浓度降至正常水平（０．０６ｍｍｏｌ／Ｌ）；每１００ｍｌ含氟水中加入２００ｍｇ的磷酸氢钙需１２ｈ将水氟浓度降至正常水平，氢氧化钙和骨碳单独作用的效果较差。使用除水氟剂后．水中钙、磷浓度和ｐＨ值符合《生活饮用水卫生标准》。
Abstract The rate and capacity of water defluoridation was evaluated after using KAI (SO4) 2, CaHPO4, Ca(OH)2 and bone charcoal. Removing 100ml water fluoride from 0. 53mmol/L to 0. 06mmol/L took 80mg Kal (SO4)2 1 hour or 100rug CaHPO4 12 hours. Ca (OH)2 and bone charcoal had lower capability of defluoridation. The quality of water after using defluoridators was acceptable in PH and levels of calcium and phosphate.
出处
《口腔医学纵横》
CSCD
1995年第4期207-209,共3页
Journal of Comprehensive Stomatology
