广西贺州石龙河上游地下水铊污染机理探讨  

Discuss on Thallium Pollution Mechanism of Groundwater in the Upper Reaches of Shilong River in Hezhou,Guangxi

作　　者：张鲲[1] 胡俊良[1] 刘孟合 李振华 李堃[1] 程顺波[1] 崔森[1] 夏杰[1] 赵武强[1] 刘飞[1] 彭三国[1] ZHANG Kun;HU Jun-Liang;LIU Meng-He;LI Zhen-Hua;LI Kun;CHENG Shun-Bo;CUI Sen;XIA Jie;ZHAO Wu-Qiang;LIU Fei;PENG San-Guo(Wuhan Center of China Geological Survery,Wuhan 430205,Hubei,China;First Geological Brigade of Hubei Geological Bureau,Huangshi 435000,Hubei,China;Sixth Geological Brigade of Hubei Geological Bureau,Xiaogan 432000,Hubei,China)

机构地区：[1]中国地质调查局武汉地质调查中心,武汉430205 [2]湖北省地质局第一地质大队,湖北黄石435000 [3]湖北省地质局第六地质大队,湖北孝感432000

出　　处：《华南地质与矿产》2020年第1期65-71,共7页Geology and Mineral Resources of South China

基　　金：中国地质调查局项目“广西贺州-梧州地区综合地质调查”(编号:DD20190826)。

摘　　要：贺州地区是重金属铊污染高发区,本文以贺州石龙河上游段为重点研究区,采用等间距取样,开展地下水重金属污染调查,探讨地下水铊污染机理。结果表明,研究区地下水存在重金属铊、锰污染,Tl元素含量超标的地下水有3处,超标率11.5%,Mn元素含量超标的地下水11处,超标率42.3%。研究区地下水重金属铊污染主要分布在矮山、莲花及莲花西侧村庄一带,矮山村民井地下水重金属污染最严重,Tl元素超标3.0倍,Mn元素超标19.0倍。研究区矿山抽排废水重金属Tl、Mn元素含量都未超标。对比研究表明,石龙河上游段地下水重金属铊污染来源不限于矿业活动,与地质环境背景关系更密切。Hezhou area is a high incidence area of heavy metal thallium pollution.This paper focuses on the upper reaches of Shilong river in hezhou and adopts equidistant sampling to carry out the investigation of heavy metal pollution in groundwater and discuss the mechanism of thallium pollution in groundwater.It was found the groundwater in the study area was polluted by heavy metals such as thallium and manganese.There were three places of groundwater with thallium element content exceeded the standard,with the exceeded rate of 11.5%.There were 11 places of groundwater with manganese element content exceeded the standard,with the exceeded rate of 42.3%.The thallium pollution of groundwater in the study area was mainly distributed in the area of Aishan,Lianhua and the villages on the west side of Lianhua.The Aishan groundwater was most seriously polluted by heavy metals,with thallium element exceeded the standard by 3.0 times and manganese element exceeding the standard by 19.0 times.However,the contents of heavy metals thallium and manganese in the mine drainage wastewater were not over the standard,indicating that the source of heavy metal thallium in the groundwater was not limited to mining activities and the influence of mining activities was limited.The comparative study shows that it was more closely related to the geological environment.

关 键 词：贺州石龙河 重金属污染 铊 机理 

分 类 号：P595[天文地球—地球化学] X142[天文地球—地质学]