西北煤电集聚区不同水体水化学特征及氟成因
Hydrochemical characteristics and fluorine genesis of different water bodies in coal-fired power agglomeration area of Northwest China
韩萱 1黄磊 2刘廷玺 2侯泽明 1李艳娜 1许江1
作者信息
- 1. 内蒙古农业大学水利与土木建筑工程学院,内蒙古自治区水资源保护与利用重点实验室,内蒙古 呼和浩特 010018
- 2. 内蒙古农业大学水利与土木建筑工程学院,内蒙古自治区水资源保护与利用重点实验室,内蒙古 呼和浩特 010018;黄河流域内蒙段水资源与水环境综合治理自治区协同创新中心,内蒙古 呼和浩特 010018
- 折叠
摘要
为探明西北煤电集聚区不同水体水化学特征以及氟离子分布成因,以鄂尔多斯市补连塔矿区为研究对象,采用Piper三线图、主成分分析、相关性分析等方法,对采集的55个水样进行测试,结合非致癌健康评价模型对地下水中氟离子进行健康风险评估.结果表明:所有水样均呈现出弱碱性;Na+、SO42-是地表水以及深层地下水的优势离子,浅层地下水的优势离子为 Ca2+和 HCO3-;地表水的水化学类型主要以 SO4·Cl-Na 和 HCO3·SO4-Na 型为主,浅层地下水的化学类型较多,主要以SO4·Cl-Na·Ca、HCO3-Na·Mg、HCO3-Mg和SO4·Cl-Ca型为主,深层地下水则以HCO3·SO4-Ca和SO4-Na型为主;其水化学特征主要受硅酸盐风化溶解作用影响,同时采煤活动促进了不同水体之间水化学转化;地表水、浅层地下水与深层地下水中F-变化范围分别在0.16～4.82,0～0.69,0.08～6.26mg/L,地下水中F-有19.35%的风险指数超过HQ=1,推测该地区地下水的高氟现象对人类健康产生一定的影响.
Abstract
In order to explore the hydrochemical characteristics of different water bodies and the causes of fluorine ion distribution in the Northwest coal-electricity agglomeration area,the Bulianta mining area in Ordos City was taken as the research object.The Piper three-line diagram,principal component analysis,correlation analysis and other methods were used to test the collected 55water samples,and the non-carcinogenic health assessment model was used to evaluate the health risk of fluorine ions in groundwater.The results show that all water samples were weakly alkaline;Na+and SO42-were the dominant ions of surface water and deep groundwater,and the dominant ions of shallow groundwater were Ca2+and HCO3-.The hydrochemical types of surface water were mainly SO4Cl-Na and HCO3SO4-Na.There are many chemical types of shallow groundwater,mainly SO4Cl-Na·Ca,HCO3-Na·Mg,HCO3-Mg and SO4Cl-Ca,while the deep groundwater is mainly HCO3SO4-Ca and SO4-Na.Its hydrochemical characteristics are mainly due to the influence of silicate weathering and dissolution,and coal mining activities promote the interaction between different water bodies.The variation ranges of F-in surface water,shallow groundwater and deep layer were respectively 0.16～4.82,0～0.69,0.08～6.26mg/L in surface water,shallow groundwater and deep layer,respectively.19.35%of the risk index of F-in groundwater exceeded HQ=1,and it is assumed that the high fluorine phenomenon in groundwater in this area has certain impacts on human health.
关键词
地下水/地表水/水化学特征/主成分分析/氟离子Key words
groundwater/surface water/hydrochemical characteristics/principal component analysis/fluorideions引用本文复制引用
基金项目
国家自然科学基金资助项目(52369003)
内蒙古自治区自然科学基金资助项目(2023LHMS04011)
准格尔旗应用技术研究与开发项目(2023YY-19)
内蒙古自治区科技领军人才团队(2022LJRC0007)
内蒙古农业大学基本科研业务费专项资金资助(BR22-12-04)
出版年
2024
NETL
NSTL
万方数据