环境保护科学2025，Vol.51Issue(1)：79-88,10.DOI:10.16803/j.cnki.issn.1004-6216.202312014
奎屯河下游区域承压水层高氟地下水分布特征及形成过程
Distribution characteristics and formation process of high fluorine groundwater in confined water layers in the lower reaches of Kuitun River
摘要
Abstract
To investigate the distribution characteristics and formation process of primary high fluorine groundwater in the lower reaches of Kuitun River,Xinjiang,109 groups of groundwater samples were collected.By using GIS spatial interpolation technology,Piper three-plot,Gibbs diagram and hydrogeochemical simulation method,the distribution characteristics and formation process of high-fluorine groundwater were discussed by analyzing the water chemical characteristics and occurrence forms of groundwater,so as to provide scientific basis for rational utilization and treatment of regional groundwater.The results showed that the occurrence environment of groundwater in the study area was weakly alkaline,and the F-concentration ranges from 0.22 to 7.50 mg/L,with an average value of 2.34 mg/L.66%of groundwater samples were higher than 1.0 mg/L standard for drinking water in China.The occurrence form of fluoride ions in groundwater mainly existed in the free state F-,accounting for 74.78%～99.65%.The concentration of F-increased gradually from southwest to northeast in horizontal distribution,and there was no obvious distribution pattern in vertical high fluorine groundwater.Dissolution of fluorite,precipitation of calcite and dolomite,competitive adsorption and cation exchange of HCO3-,OH-and F-in weakly alkaline environment were the main reasons for the formation of high fluoride groundwater in the study area,and human activities had little influence on the formation of high fluoride groundwater in the study area.关键词
氟/地下水/分布特征/形成过程/奎屯Key words
fluorine/groundwater/distribution characteristics/formation process/Kuitun分类
资源环境引用本文复制引用
董乐乐,罗艳丽,晁博,郑玉红,王美娟,宋振,刘畅..奎屯河下游区域承压水层高氟地下水分布特征及形成过程[J].环境保护科学,2025,51(1):79-88,10.基金项目
国家自然科学基金项目(42067053、41761097) （42067053、41761097）
