某城市地下水中重金属含量分析及锰污染修复治理措施  

Analysis of heavy metal content in groundwater of a certain city and remedial measures for manganese pollution*

作　　者：韩湉 曹磊 刘茜 HAN Tian;CAO Lei;LIU Qian(Beijing Chaoyang District Ecological Environmental Monitoring Center,Beijing 100048,China)

机构地区：[1]北京市朝阳区生态环境监测中心,北京100048

出　　处：《化学工程师》2025年第4期100-103,18,共5页Chemical Engineer

基　　金：北京市自然科学基金项目(82159621);北京市科技计划基金项目(Z181100004816024)。

摘　　要：以北方某城市不同时间段以及不同取样点位的地下水样品为研究对象,对地下水中不同类型重金属的含量进行了检测分析,并采取吸附法对含不同浓度重金属锰的模拟地下水进行了修复治理。结果表明,目标城市地下水中重金属锰的含量存在一定程度的超标现象,2024年前三季度不同取样点位地下水样中重金属锰的平均含量均超过了0.1mg·L^(-1),未达到GB/T 14848-2017《地下水质量标准》中规定的三类水质标准要求,而其他类型重金属含量均未超标。吸附剂HS-2能够对重金属锰超标的地下水起到良好的吸附治理效果,当其投加量为8g·L^(-1)时,对重金属锰初始浓度为0.5~30mg·L^(-1)的模拟地下水中重金属锰的去除率均在99.7%以上,处理后的模拟地下水中重金属的含量均在0.1mg·L^(-1)以下,达到了良好的修复治理效果。Taking groundwater samples from a northern city at different time periods and sampling points as the research object,the content of different types of heavy metals in groundwater was detected and analyzed.Adsorption method was used to restore and treat simulated groundwater containing different concentrations of heavy metal manganese.The results indicate that there is a certain degree of excessive content of heavy metal manganese in the groundwater of the target city.In the first three quarters of 2024,the average content of heavy metal manganese in groundwater samples from different sampling points exceeded 0.1mg·L^(-1),which did not meet the requirements of the Class III water quality standard specified in GB/T 14848-2017,while the content of other types of heavy metals did not exceed the standard.The adsorbent HS-2 can effectively adsorb and treat groundwater with excessive heavy metal manganese.When its dosage is 8g·L^(-1),the removal rate of heavy metal manganese in simulated groundwater with initial concentrations of 0.5~30mg·L^(-1) is above 99.7%.The content of heavy metals in the treated simulated groundwater is below 0.1mg·L^(-1),achieving good remediation and treatment effects.

关 键 词：城市地下水 重金属污染 超标 吸附剂 修复治理效果 

分 类 号：X532[环境科学与工程—环境工程]