摘要
为保证饮水安全,解决水源地水质超标问题,提出治理方案,本文通过同位素监测、定量估算分析等方法对龙祠水源地高浓度硫酸根离子进行了研究。结果表明:在特殊“单斜逆置型”地质结构下,龙祠水源地高浓度硫酸根离子主要来源于中奥陶系石膏和煤系硫铁矿的氧化溶解;由硫同位素分析可知,中奥陶系石膏溶解是硫酸根离子浓度较高的主要原因,占比在75%以上,属于地质原因;煤矿开采导致的硫铁矿氧化溶解是加剧硫酸根离子总浓度波动变化的直接显性影响因素,为人类活动加剧所致。
To ensure drinking water safety and address standard-exceeding issues of water quality in the water source area,a remediation plan is proposed in this paper.Through methods such as isotope monitoring and quantitative estimation analysis,the study investigates the high concentrations of sulfate ions in Longci watershed.The results indicate that,under the unique geological structure pattern of“tilted inversion”,the main sources of high sulfate ion concentrations in Longci water source area are the oxidation and dissolution of gypsum from the Middle-Upper Ordovician and pyrite from the coal series.Sulfur isotope analysis reveals that the dissolution of gypsum from the Middle-Upper Ordovician is the primary geological reason for the elevated sulfate ion concentration,accounting for over 75%of the proportion.The oxidation and dissolution of pyrite resulting from coal mining exacerbates fluctuations in total sulfate ion concentration and is a direct and prominent factor influenced by human activities.
作者
张芳齐
ZHANG Fangqi(Taiyuan University of Technology Architectural Design and Research Institute Co.,Ltd.,Taiyuan 030024,China)
出处
《水资源开发与管理》
2023年第9期42-46,共5页
Water Resources Development and Management
关键词
硫同位素
石膏
岩溶水
硫酸根
龙祠水源地
sulfur isotope
plaster
karstic water
sulfate radical
Longci water source
作者简介
张芳齐(1988—),女,工程师,学士,主要从事水文水资源相关工作。
