磷酸三钙饮水除氟条件试验及其机理探讨  

Mechanisms and conditions of defluoridation from drinking water by tricalcium phosphate

作　　者：张妍[1] 何公理[1] 吉荣娣[1] 

机构地区：[1]中国预防医学科学院环境卫生与卫生工程研究所,北京100050

出　　处：《中国地方病学杂志》1996年第3期153-156,共4页Chinese Jouranl of Endemiology

摘　　要：报道了磷酸三钙饮水除氟的实验条件,比较了磷酸三钙在不同条件下的除氟效果。结果表明磷酸三钙的除氟效率与原水 pH 值呈密切的负相关关系(相关系数在—0.8934～—0.9915),与水温和接触时间呈明显的正相关关系(相关系数分别为0.6420～0.9207,0.956～0.9839)。证明了磷酸三钙的除氟作用是一种复杂的需能化学反应机理。The present work examines and compares the efficiency of defluoridation from drinking water by TCP under various pH level,temperature and contact time conditions.Its defluoridation mechanisms are discussed in detail.The results showed that there were a closely negative correlation between the defluo- ridation efficiency of TCP and the pH levels of raw water(r=—0.8934～—0.9915),evidently positive correlation between that and temperature as well as the contact time(r=0.6420～0.9207 and 0.1956～ 0.9839,respectively)which suggested that the defluoridation mechanism of TCP could be a complex chemical reaction needed energy.

关 键 词：磷酸三钙 氟中毒 饮用水 除氟 

分 类 号：R599.9[医药卫生—内科学] R123.6[医药卫生—临床医学]