高氟地下水混凝沉淀降氟试验研究  

An experimental study of coagulative precipitation process for fluoride removal from high fluoride-bearing groundwater

作　　者：王振宇[1] 王金生[1] 滕彦国[1] 王化军[2] 王丽[1] 

机构地区：[1]北京师范大学环境学院地下水环境安全研究所环境模拟与污染控制国家联合重点实验室,北京100875 [2]北京科技大学土木与环境工程学院,北京100083

出　　处：《水文地质工程地质》2004年第5期42-45,71,共5页Hydrogeology & Engineering Geology

基　　金：国家重点基础研究发展规划(G1999043606);国家自然科学基金委员会;水利部黄河水利委员会黄河联合资助项目(50239010)

摘　　要：本文开展了山西运城地区高氟地下水的降氟试验,对聚铁、硫酸铝和明矾等不同混凝剂降氟效果进行对比,探讨了地下水硬度对混凝沉淀除氟效果的影响。实验结果表明:明矾混凝沉降效果优于其它混凝剂,0 3g L的明矾溶液可使含氟浓度4 0mg L的地下水降低到浓度1 0mg L以下;地下水的硬度对明矾混凝降氟效果没有明显影响。Effective fluoride removal technology is very important for people who drink high fluoride-bearing groundwater. A trial experiment of fluoride removal from high fluoride-bearing groundwater in Yuncheng Basin, Shanxi Province, is conducted and discussed in this paper. Several coagulants have been compared in this experiment, and the influence of the hardness of groundwater has been investigated. Experiment results indicate that alum is the best choice as a coagulant, and that for coagulative precipitation process using alum solution at 0.3 g/L has been successfully applied for fluoride removal from fluoride-bearing water whose initial concentration is less than 4 mg/L.Hardness of the groundwater is not important.

关 键 词：高氟地下水 降氟 明矾 混凝沉降 

分 类 号：P641.3[天文地球—地质矿产勘探] P631.621[天文地球—地质学]