摘要
本文以含氟饮用水处理实例,介绍了一种利用原水中含有的无机盐,加入廉价化学试剂降低水中氟含量的简便方法。着重通过对影响降氟因素的探讨,研究了降氟机理。结果表明,降氟机理主要是:F^-在软化水过程中生成的 Mg(OH)_2沉淀表面以一级交换吸附共沉淀而被降低。此外,CaCO_3沉淀亦有少量的降氟作用。
In this pater a simple method of reducing fluoride from drinking water has been intro- duced through exemlpary treatment of fluoride—containing water.Through discussing sever- al factors that affect fluoride reducing,the mechanism of“first gread exchange—adsorption cosediment”of fluoride on the surface of Mg(OH)_2 precipitate,formed during the treatment process,has been intensively studied.Besides the precipitation of CaCO_3 also helps reduce flu- oride.
出处
《水处理技术》
CAS
CSCD
北大核心
1993年第2期98-101,共4页
Technology of Water Treatment
关键词
氟
饮用水
降氟
吸附
共沉淀
drinking water
reducing fluoride
mechanism
first grade exchange—adsorption
cosediment
