院报 ›› 2023, Vol. 40 ›› Issue (10): 59-65.DOI: 10.11988/ckyyb.20220344

• 水环境与水生态 • 上一篇    下一篇

奎屯河流域地下水及沉积物化学组分特征对氟释放的影响

刘亚楠1,2, 李巧1,2, 宿彦鹏3, 陶洪飞1,2, 马合木江·艾合买提1,2   

  1. 1.新疆农业大学 水利与土木工程学院,乌鲁木齐 830052;
    2.新疆水利工程安全与水灾害防治重点实验室,乌鲁木齐 830052;
    3.甘肃省临夏回族自治州广河县水务局,甘肃 临夏 731300
  • 收稿日期:2022-04-06 修回日期:2022-07-15 出版日期:2023-10-01 发布日期:2023-10-13
  • 通讯作者: 李 巧(1987-),女,四川广安人,教授,博士,从事水环境保护的研究。E-mail:qiaoli_xjau@qq.com
  • 作者简介:刘亚楠(1997-),女,河北唐山人,硕士研究生,从事水环境保护的研究。E-mail:1430347115@qq.com
  • 基金资助:
    新疆维吾尔自治区自然科学基金青年科学基金项目(2022D01B86);新疆自治区高校基本科研业务费科研项目(XJEDU2022J008);新疆水利工程安全与水灾害防治重点实验室开放课题资助项目(ZDSYS-JS-2021-09,ZDSYS-YJS-2022-20)

Influences of Chemical Composition of Groundwater and Sediments on Fluorine Release in Kuitun River Basin

LIU Ya-nan1,2, LI Qiao1,2, SU Yan-peng3, TAO Hong-fei1,2, MAHEMUJIANG Aihemaiti1,2   

  1. 1. College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China;
    2. Xinjiang Key Laboratory of Water Conservancy Engineering Safety and Water Disaster Prevention, Urumqi 830052, China;
    3. Water Affairs Bureau, Guanghe County, Linxia Hui Autonomous Prefecture, Linxia 731300, China
  • Received:2022-04-06 Revised:2022-07-15 Online:2023-10-01 Published:2023-10-13

摘要: 新疆奎屯河流域是典型的原生高氟区。运用数理统计、定性与定量分析结合的研究方法,研究奎屯河流域沉积物化学组分相关性、地下水及沉积物化学组分特征及水-土系统中氟的释放机理。结果表明:奎屯河流域沉积物F含量与沉积物Mg、Ca、Mn、Fe、Cu、As含量呈正相关关系;水-土系统中氟离子经过矿物溶解-沉淀、络合-解离等水文地球化学作用,不断改变赋存状态;相同深度下,氟含量受到水文地球化学作用、土壤腐殖质等的影响,改变赋存环境,地下水氟含量随沉积物氟含量的增大呈先增大后减小趋势。

关键词: 地下水化学组分, 沉积物化学组分, 水-土系统, 氟的释放机理, 数理统计, 水文地球化学作用, 奎屯河流域

Abstract: Kuitun River Basin in Xinjiang is a typical endogenous high-fluorine area. By using a combination of mathematical statistics, qualitative and quantitative analysis, we investigated the correlation between chemical composition of borehole sediments and fluorine content, the chemical composition characteristics of groundwater and sediment, and the release mechanism of fluorine in the water-soil system of Kuitun River Basin. Results reveal a positive correlation between the fluorine (F) content and the content of magnesium (Mg), calcium (Ca), manganese (Mn), iron (Fe), copper (Cu), and arsenic (As) in borehole sediments. The occurrence state of fluoride ions in the water-soil system changes continuously through hydrogeochemical processes such as mineral dissolution- precipitation and complexation-dissociation. Moreover, the fluorine content at a particular depth is influenced by hydrogeochemistry and soil humus, causing variations in the storage environment. The fluorine content in groundwater initially increases and subsequently decreases with the rise in fluorine content in sediments.

Key words: chemical composition of groundwater, chemical composition of sediment, water-soil system, fluorine release mechanism, mathematical statistics, hydrogeochemical process, Kuitun River Basin

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