龙子祠泉水化学组分成因及硫同位素分析

摘要

Longzici spring is the water source of industrial and agricultural production in Linfen City.According to the monitoring, the sulfate ion(SO) ,total hardness (HB) and total dissoloved solid (TDS) is increasing year by year in Longzici Spring water.In the cocal mining process, ferrous sulphide is oxidized to sulfate.This leads to the sulfate ion in karst groundwater increase,while the total hardness and total dissoloved solid induced growth.Through the analysis of the sulfur isotope, the sulfate ion from cacol mining drainage accounted for 22.2% in spring water.On this basis, put forward the protection measures to prevent pollution caused by coal mining: reducing the amount of sulfate ion infiltering into groundwater, reducing the relative mass concentration of sulfate ion in karst groundwater.%龙子祠是山西省临汾市工农业生产和城市水源地,根据监测发现龙子祠泉水中的硫酸根离子(SO)、总硬度(HB)、溶解性总固体(TDS)呈逐年增长趋势.采煤过程中硫铁矿氧化生成硫酸,引起岩溶地下水中硫酸根离子含量的增长,并进一步引起总硬度和溶解性总固体增长.通过对硫同位素分析计算,结果显示:出泉水中22.2%的硫酸根是由采煤排水引起,在此基础上提出减少SO的入渗量、降低岩溶地下水相对质量浓度,防止采煤引起的污染,保护龙子祠泉水质等保护措施.