首页|西北煤电集聚区不同水体水化学特征及氟成因

西北煤电集聚区不同水体水化学特征及氟成因

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
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。
Hydrochemical characteristics and fluorine genesis of different water bodies in coal-fired power agglomeration area of Northwest China
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.

groundwatersurface waterhydrochemical characteristicsprincipal component analysisfluorideions

韩萱、黄磊、刘廷玺、侯泽明、李艳娜、许江

展开 >

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

地下水 地表水 水化学特征 主成分分析 氟离子

国家自然科学基金资助项目内蒙古自治区自然科学基金资助项目准格尔旗应用技术研究与开发项目内蒙古自治区科技领军人才团队内蒙古农业大学基本科研业务费专项资金资助

523690032023LHMS040112023YY-192022LJRC0007BR22-12-04

2024

中国环境科学
中国环境科学学会

中国环境科学

CSTPCDCHSSCD北大核心
影响因子：2.174
ISSN：1000-6923
年,卷(期)：2024.44(7)
  • 48