摘要
近年来,随着人为活动影响的加剧,地下水水质有恶化趋势,但水化学组分形成机制尚不明确。在地下水样品采集的基础上,运用水化学组分统计分析、离子比值分析、Piper三线图、Gibbs图、离子比值图、饱和指数计算等手段分析区内地下水水化学特征及其影响因素。结果表明:区内岩溶地下水阳离子以Ca^(2+)为主,阴离子以HCO_(3)^(-)为主,水化学类型主要有HCO_(3)-Ca型、HCO_(3)·SO_(4)-Ca型、HCO_(3)·Cl-Ca型。水化学组分主要受水岩相互作用控制,主要来源于方解石、白云石、盐岩等矿物的溶解;区内阳离子交换作用较弱;人为活动影响导致地下水中Cl^(-)、NO_(3)^(-)浓度增加。
As the main water source of Feicheng city,karst groundwater has made outstanding contribution to the local social and economic development.In recent years,with the increasing influence of human activities,the groundwater quality has deteriorated,but the formation mechanism of water chemical components is not clear.On the basis of groundwater sample collection,statistical analysis of water chemical components,ion ratio analysis,Piper three-plot,Gibbs chart,ion ratio chart,saturation index calculation and other methods were used to analyze the groundwater chemical characteristics and influencing factors.The results show that Ca^(2+)is the main cation,HCO_(3)^(-)is the main anion,and HCO_(3)·Ca type,HCO_(3)·SO_(4)-Ca type and HCO_(3)·Cl-Ca type are the main hydrochemical types.The hydrochemical components are mainly controlled by water-rock interaction,and mainly come from the dissolution of calcite,dolomite,salt rock and other minerals.The cation exchange is weak in the region.The concentration of Cl^(-)and NO_(3)^(-)in groundwater increased due to the influence of human activities.
作者
李星辰
王婷
李晓波
滕海成
周超
高慧
左含月
王琦
Li Xingchen;Wang Ting;Li Xiaobo;Teng Haicheng;Zhou Chao;Gao Hui;Zuo Hanyue;Wang Qi(No.5 Exploration Institute of Geology and Mineral Resources of Shandong Province,Tai’an 271000,China;Tai’an Ecological Environment Protection and Control Center,Tai’an 271000,China;School of Water Resources and Environment,Hebei GEO University,Shijiazhuang 050031,China)
出处
《环境工程》
CAS
CSCD
北大核心
2023年第S02期108-113,共6页
Environmental Engineering
基金
泰安市地下水环境状况调查项目(202005034)
关键词
肥城市
水源地
岩溶地下水
水化学特征
碳酸盐岩
Feicheng
water source
karst water
hydrochemical characteristics
carbonate rock
