奎屯河流域地下水砷、氟空间分布及成因  

Spatial Distribution and Causes of Arsenic and Fluoride in Groundwater of Kuitun River Basin

作　　者：李巧[1,2,3] 刘亚楠 陶洪飞 姜有为[1,3] 马合木江·艾合买提 杨文新 LI Qiao;LIU Ya-nan;TAO Hong-fei;JIANG You-wei;Mahemujiang·Aihemaiti;YANG Wen-xin(College of Hydraulic and Civil Engineering,Xinjiang Agricultural University,Urumqi 830052,China;Xinjiang Hydrology and Water Resources Engineering Technology Research Center,Urumqi 830052,China;Xinjiang Key Laboratory of Water Conservancy Engineering Safety and Water Disaster Prevention,Urumqi 830052,China)

机构地区：[1]新疆农业大学水利与土木工程学院,乌鲁木齐830052 [2]新疆水文水资源工程技术研究中心,乌鲁木齐830052 [3]新疆水利工程安全与水灾害防治重点实验室,乌鲁木齐830052

出　　处：《新疆农业大学学报》2021年第5期337-346,共10页Journal of Xinjiang Agricultural University

基　　金：国家自然科学基金(41762018);新疆维吾尔自治区“天山青年计划”青年博士科技人才培养项目(2020Q079);新疆维吾尔自治区杰出青年科学基金项目资助。

摘　　要：新疆奎屯河流域是典型的原生高砷、高氟地下水区。运用地下水水化学组分测试、Piper三线图、Gibbs图、离子比和灰色关联度等方法对奎屯河流域地下水砷、氟空间分布特征及影响因素进行了研究。结果表明,奎屯河流域水平方向上砷、氟含量由南向北呈增大趋势;垂直方向上,高砷、高氟地下水主要分别集中在75~200 m、和50~200 m井深处。石膏和萤石的风化溶解、强烈的蒸发浓缩、重碳酸氢根对砷、氟的吸附、以及Ca^(2+)置换出Na^(+)的过程都增大了研究区地下水中砷、氟的含量;pH、HCO_(3)^(-)是与砷、氟含量变化影响最密切的两种因素。The Kuitun River Basin in Xinjiang is a typical native groundwater area with high arsenic and high fluoride content.This project aims to study the spatial distribution characteristics and influencing factors of arsenic and fluoride in the groundwater of Kuitun River Basin by using the methods such as groundwater chemical composition test,Piper,Gibbs,ion ratio and grey correlation degree.The results showed that the contents of arsenic and fluorine tended to increase from south to north in the Kuitun River Basin.In the vertical direction,high arsenic and high fluoride groundwater were mainly concentrated in wells 75~200 m and 50~200 m deep,respectively.The weathering and dissolution of gypsum and fluorite,the intense evaporation and concentration,the adsorption of arsenic and fluorine by bicarbonate,and the replacement of Ca^(2+) to Na^(+) all increased the content of arsenic and fluorine in the groundwater in the study area.pH and HCO_(3)^(-) were the two factors most closely related to the change of arsenic and fluorine content.

关 键 词：奎屯河流域 离子比 灰色关联度 蒸发浓缩 竞争吸附 阳离子交换 

分 类 号：X523[环境科学与工程—环境工程]