基于水盐平衡的官厅水库氟化物达标途径研究

金桂琴; 黄俊雄; 王军红; 宋倩; 李文忠; 郭浩然

doi:10.13205/j.hjgc.202502015

基于水盐平衡的官厅水库氟化物达标途径研究

doi: 10.13205/j.hjgc.202502015

1. 北京市水科学技术研究院流域水环境与生态技术北京市重点实验室, 北京 100048;
2. 北京市官厅水库管理处, 河北张家口 075441

基金项目:

北京市科技计划项目(Z221100005222014)

国家自然科学基金项目(52209005)

北京市财政项目(11000023T000002092475)

详细信息

作者简介:
金桂琴(1977-),女,硕士,正高级工程师。156116588@qq.com

通讯作者:
金桂琴(1977-),女,硕士,正高级工程师。156116588@qq.com

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出版历程
- 收稿日期: 2024-10-26
- 录用日期: 2024-12-30
- 修回日期: 2024-11-09

Research on pathways of fluoride complying with water quality standards in the Guanting Reservoir based on water and salt balance

1. Beijing Key Laboratory of Watershed Environment and Ecological Technology, Beijing Water Science and Technology Institute, Beijing 100048, China;
2. Beijing Guanting Reservoir Management Office, Zhangjiakou 075441, China

摘要

摘要: 我国北方大部分水库存在氟化物含量超标的问题,严重影响区域生态环境和人体健康。依托官厅水库恢复水源地的迫切需求,结合库区氟化物浓度超标的现状,综合采用水盐平衡分析、相关分析以及情景分析等方法,从氟化物视角探索官厅水库恢复水源地的途径和措施。结果表明,官厅水库库区氟化物浓度多年均值为1.23 mg/L,稍高于入库河流八号桥和东大桥的氟化物浓度。八号桥和东大桥汇入是库区主要的水量和氟化物贡献源,分别占总入库量的66.69%和52.31%;此外,库区底泥氟化物释放约占总汇入量的27.54%,成为仅次于八号桥的第2大污染源。通过将八号桥来水的氟化物浓度降低到0.63 mg/L,或对库区75.42%的面积开展清淤的单项措施,以及分别将补水量提升50%、补水氟化物浓度降低50%、库区50%的面积开展清淤等措施进行组合的综合措施,均能够保障库区氟化物维持在GB 3838—2022《地表水环境质量标准》中Ⅱ类水质。具体工程实践中,需在考虑经济性的基础上,综合采用补水、改善水质以及生态清淤的方式,保障库区稳定达到水源地的要求。
- 水盐平衡 /
- 官厅水库 /
- 氟化物 /
- 生态补水
Abstract: Many reservoirs in north China are facing the issue of excessive fluoride concentration over the water quality standards, which severely impacts the regional ecological environment and human health. Leveraging the urgent need to restore the water source of the Guanting Reservoir, combined with the current situation of excessive fluoride concentration in the reservoir area, a comprehensive approach utilizing methods such as water-salt balance analysis, correlation analysis, and scenario analysis was employed to explore the ways and measures for restoring the water source of Guanting Reservoir from the perspective of fluoride. Research findings indicate that the average fluoride concentration in the Guanting Reservoir area is 1.23 mg/L over multiple years, slightly higher than the fluoride concentrations at the No.8 Bridge and East Bridge inlet tributary. The No.8 Bridge and East Bridge inlet tributary are the main contributors to the reservoir area’s water volume and fluoride, accounting for 66.69% and 52.31% of the total inflow, respectively. Additionally, fluoride released from reservoir sediment accounts for approximately 27.54% of the total inflow, making it the second largest source of pollution following the No.8 Bridge inlet tributary. By taking a single measure, like reducing the fluoride concentration in the water of the No.8 Bridge inlet tributary to 0.63 mg/L, dredging 75.42% of the reservoir area, or taking a comprehensive measure, including increasing water replenishment amount by 50%, reducing the fluoride concentration of replenishment water by 50%, and dredging 50% the reservoir area, the fluoride in the reservoir area can all be maintained at the level of Class Ⅱ spcified in Surface Water Environmental Quality GB 3838—2022. It is necessary to comprehensively adopt water replenishment, water quality improvement, and ecological dredging to ensure the stable attainment of water source requirements in the reservoir area.
- water-salt balance /
- the Guanting Reservoir /
- fluoride /
- ecological water replenishment

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