【摘要】 氟中毒是由于摄入过量氟引起的.除发生在高氟水地区外,由于砖茶中的氟含量比较高,有饮用砖茶习惯的少数民族地区往往因饮茶过多出现氟中毒现象.通过对国内外饮用水及茶水降氟的技术、降氟机理、降氟影响因素的综述,对当前吸附法如蛇纹石、沸石、负载硅胶、石英砂、粘土等的除氟效果及机理做了深入探讨,对化学沉淀法的常规做法如铝盐、钙盐等除氟和最新尝试进行了比较,此外简述了电化学方法的应用,其目的是提出在不影响茶水质量和品位的情况下的砖茶水降氟的设想.更多还原

【Abstract】 Excess ingestion of fluoride can cause Fluorosis. It is common in high-fluoride areas and due to drinking the high-content of fluoride brick tea, people sufferred from fluorosis. Analyzed factors affecting defluoridation, mechanical and technology about fluoride removal in drinking water and brick tea water, made a profound discuss about physical adsorption like serpent, zeolite, silicone, quartz silt, clay and so on. Besides, made a comparison about the common practices and new tries of the chemical sedimentation and reviewed electricity-chemical methods in order to seek ways removing excess fluoride without changing the quality and taste of the brick tea.更多还原