示踪试验在岩溶区城市管网渗漏污染地下水溯源的应用——以贵阳市某泉点为例  

Application of Tracer Test in Tracing Groundwater Source of Leakage Pollution in Urban Pipeline Networks in Karst Areas——Taking a Spring Point in Guiyang City as an Example

作　　者：李婕 胡德勇[1] 任维 杨芳 Li Jie;Hu Deyong;Ren Wei;Yang Fang(Guizhou Geological and Mineral Exploration and Development Bureau 105 Geological Brigade,Guiyang 550000,China)

机构地区：[1]贵州省地质矿产勘查开发局一0五地质大队,贵州贵阳550000

出　　处：《四川有色金属》2025年第1期47-51,共5页Sichuan Nonferrous Metals

基　　金：贵州矿区水文地质科技创新人才团队(项目编号:黔地矿科合[2024]TD007)。

摘　　要：随着城市建设活动周边常住人口增加,城市污水排放量的增长加剧了污水管网的负荷。由于城市管网的老化与破损,污水得以从管网的裂缝中渗漏,并通过岩溶裂隙渗透进入地下水系统,进而导致了地下水体中氨氮浓度升高。本文以贵阳市城区已被污染的某泉点为例,对该泉点周边水文地质条件和地下水环境现状进行调查,划定该泉点的泉域范围,结合城市的污水排放现状及管网分布情况,通过示踪试验溯源查明该泉点的污染源及污染成因模式,为今后岩溶区城市地下水污染治理起到参考和促进作用。With the increase in the permanent population around urban construction activities,the growth of urban sewage discharge has intensified the burden on the sewage pipeline network.Due to the aging and damage of the urban pipeline network,sewage has leaked through the cracks in the network and infiltrated into the groundwater system through karst fissures,leading to an increase in ammonia nitrogen concentration in the groundwater body.This article takes a certain polluted spring point in the urban area of Guiyang as an example,investigates the hydrogeological conditions and current status of the groundwater environment around the spring point,delineates the spring area,and,in conjunction with the current situation of urban sewage discharge and pipeline distribution,identifies the pollution sources and pollution causation patterns of the spring point through tracer tests,providing a reference and promoting effect for the future management of urban groundwater pollution in karst areas.

关 键 词：示踪 污染源 岩溶区城市 氨氮 

分 类 号：P641.7[天文地球—地质矿产勘探]