摘要
本课题以安徽省宿州市城郊浅层地下水20组样品为研究对象,运用Piper图、Gibbs图和多元统计分析等方法对其水化学特征、水岩作用、离子来源等水文地球化学及同位素特征进行研究。结果表明:pH变化范围为7.17~7.94,属于弱碱性水,符合《生活饮用水卫生标准》(GB 5749-2006)中6.5 3- > Ca2+ > Cl− >SO42- > Na+ > Mg2+ > K+,阴阳离子的优势离子分别是HCO3- 和Ca2+;研究区水文地球化学作用包括硫酸岩矿物的溶解、硅酸岩矿物风化和碳酸岩矿物的溶蚀作用;地下水主要成分主要受大气降水作用。
In this study, 20 sets of samples of shallow groundwater of Suzhou City Suburbs, Anhui Province, were studied for the hydrogeochemical and isotopic characteristics of their water chemical characteristics, water-rock interaction, and ion source by using Piper diagram, Gibbs diagram and mul-tivariable analysis. The results show that the pH range is 7.17~7.94, which is weak alkaline water and meets the requirements of 6.5 HCO3- > Ca2+ > Cl− >SO42- > Na+ > Mg2+ > K+, and the dominant ions of anions and cations are HCO3- and Ca2+, respectively;the water chemistry characteristics of the study area include the dissolution of sul-fate, the weathering of silicate, and the dissolution of carbonates;principal groundwater components are mainly formed by atmospheric precipitation.
出处
《自然科学》
2023年第4期679-685,共7页
Open Journal of Nature Science
