«上一篇/Previous Article|本期目录/Table of Contents|下一篇/Next Article»

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:

第35卷

期数:

2013年第03期

页码:

83-96

栏目:

水资源与环境

出版日期:

2013-09-15

文章信息/Info

Title:

Chemical Characteristics and Geochemical Processes of High Arsenic Groundwater in Different Regions of China

文章编号:

1672-6561(2013)03-0083-14

作者:

郭华明; 郭琦; 贾永锋; 刘泽云; 姜玉肖

1. 中国地质大学(北京)地下水循环与环境演化教育部重点实验室,北京 100083; 2. 中国地质大学(北京)水资源与环境学院,北京 100083

Author(s):

GUO Hua-ming;  GUO Qi;  JIA Yong-feng;  LIU Ze-yun;  JIANG Yu-xiao

1.Key Laboratory of Groundwater Circulation and Evolution of Ministry of Education, China University of Geosciences, Beijing 100083, China; 2. School of Water Resources and Environment, China University of Geosciences, Beijing 100083, China

关键词:

地下水; 砷释放; 水化学特征; 水文地球化学; 富砷机理; 砷形态; 还原性溶解; 解吸附

Keywords:

groundwater;  arsenic release;  water chemical characteristic;  hydrogeochemistry;  arsenic enrichment mechanism;  arsenic species;  reductive dissolution;  desorption

分类号:

P641

DOI:

-

文献标志码:

A

摘要:

在中国广泛分布2类高砷地下水区(干旱内陆盆地和湿润河流三角洲),严重危害居民的身体健康。选择以河套盆地、呼和浩特盆地、大同盆地和银川盆地为代表的干旱内陆盆地和以江汉平原和珠江三角洲为代表的湿润河流三角洲为研究对象,分析中国不同区域高砷地下水化学特征和水文地球化学过程。结果表明:江汉平原高砷地下水以HCO₃-Ca型为主,大同盆地、河套盆地和银川盆地高砷地下水主要为HCO₃-Na型,而珠江三角洲高砷地下水为Cl-Na型;高砷地下水的氧化还原电位低,处于还原环境;SO₄^2-和NO₃^-质量浓度总体较低,其中江汉平原SO42-最低,而河套盆地NO₃^-最低;铁与砷质量浓度之间的相关性并不显著,珠江三角洲高砷地下水中铁、锰质量浓度最高,砷质量浓度相对较低,而大同盆地高砷地下水中铁、锰质量浓度最低,砷质量浓度相对较高;风化作用、阳离子交换吸附作用和还原作用等不同程度地发生于高砷地下水系统中,在河套盆地和呼和浩特盆地,除铁/锰氧化物矿物的还原性溶解外,黄铁矿沉淀可能是控制地下水中铁、砷质量浓度的一个重要过程,而在江汉平原,铁/锰氧化物矿物的还原性溶解和Fe(Ⅱ)的再吸附是地下水中的主要水文地球化学过程;在地下水pH值较高的干旱内陆盆地,吸附态砷的解吸附也是一个重要的富砷过程。

Abstract:

High arsenic groundwater has been widely found in two kinds of regions (including arid inland basin and humid river delta) in China, which seriously affects resident health. Hetao Basin, Huhhot Basin, Yinchuan Basin and Datong Basin were selected as the arid inland basins, and Pearl River Delta and Jianghan Plain as the humid river deltas. Chemical characteristics and hydrogeochemical processes of high arsenic groundwater in different regions of China were analyzed. The type of high arsenic groundwater is HCO₃-Ca in Jianghan Plain, HCO₃-Na in Datong Basin, Hetao Basin and Yinchuan Basin, and Cl-Na in Pearl River Delta. Oxidation-reduction potential in high arsenic groundwater is low, indicating reduction environment. In these environments, mass concentrations of SO₄^2- and NO₃^- are generally low. Mass concentration of SO₄^2- in Jianghan Plain is the lowest among all the six regions, while that of NO₃^- in Hetao Basin is the lowest. There is no significant correlation between mass concentrations of As and Fe. Mass concentrations of Fe and Mn are the highest, but As is relatively lower in Pearl River Delta, and mass concentrations of Fe and Mn are the lowest, but As is relatively higher in Datong Basin. Weathering, cation-exchange adsorption and reduction occur in high arsenic groundwater system. Pyrite precipitation may be an important process for controlling mass concentrations of Fe and As in addition to reductive dissolution of Fe/Mn oxides in Hetao Basin and Huhhot Basin. However, reductive dissolution of Fe/Mn oxides and Fe( Ⅱ) re-adsorption are the major hydrogeochemical processes in Jianghan Plain. Desorption of adsorbed arsenic also contributes to arsenic enrichment in groundwater of arid inland basins with weak alkaline environment.

参考文献/References:

-

相似文献/References:

[1]崔恒,郑西来,李琴,等.天然补给和人工抽水对地下咸水体的影响[J].地球科学与环境学报,2013,35(04):113.
　CUI Heng,ZHENG Xi-lai,LI Qin,et al.Effects of Natural Recharge and Artificial Pumping on Underground Saltwater[J].Journal of Earth Sciences and Environment,2013,35(03):113.
[2]李付兰,倪萍,郭华明,等.松嫩平原含水层沉积物特征及其对砷赋存态分布的影响[J].地球科学与环境学报,2015,37(01):101.
　LI Fu-lan,NI Ping,GUO Hua-ming,et al.Characteristics of Aquifer Sediments in Songnen Plain and Their Influences on Distribution of Arsenic Occurrence Modes[J].Journal of Earth Sciences and Environment,2015,37(03):101.
[3]贾超,张国荣,王嘉斌,等.地下水开采诱发地面沉降研究及其工程应用：以山东德州地区为例[J].地球科学与环境学报,2015,37(04):102.
　JIA Chao,ZHANG Guo-rong,WANG Jia-bin,et al.Study on Land Subsidence Induced by Groundwater Extraction and Its Engineering Application: Taking Dezhou Area of Shandong as an Example[J].Journal of Earth Sciences and Environment,2015,37(03):102.
[4]胡立堂,孙康宁,尹文杰.GRACE卫星在区域地下水管理中的应用潜力综述[J].地球科学与环境学报,2016,38(02):258.
　HU Li-tang,SUN Kang-ning,YIN Wen-jie.Review on the Application of GRACE Satellite in Regional Groundwater Management[J].Journal of Earth Sciences and Environment,2016,38(03):258.
[5]齐继祥,张之淦,彭玉荣,等.一种地下水14C测年沉淀法采样新程序及对以往测年成果可靠性的评估[J].地球科学与环境学报,2016,38(03):387.
　QI Ji-xiang,ZHANG Zhi-gan,PENG Yu-rong,et al.New Precipitation Method Sampling Procedure of 14C Dating of Groundwater and the Evaluation of the Formerly-obtained 14C Dating Results[J].Journal of Earth Sciences and Environment,2016,38(03):387.
[6]姜军,徐永,马媛.鄂尔多斯盆地都思兔河流域白垩系含水层特征及供水前景分析[J].地球科学与环境学报,2012,34(01):47.
　JIANG Jun,XU Yong,MA Yuan.Characteristics of Cretaceous aquifer and water supply prospect of Dusitu River Valley in Ordos Basin[J].Journal of Earth Sciences and Environment,2012,34(03):47.
[7]高存荣,王俊桃.中国69个城市地下水挥发性卤代烃污染检测与特征研究[J].地球科学与环境学报,2012,34(01):66.
　GAO Cun-rong,WANG Jun-tao.Investigation and research on volatile halogenated hydrocarbon contamination from groundwater in 69 cities of China[J].Journal of Earth Sciences and Environment,2012,34(03):66.
[8]邢丽娜,郭华明,魏亮,等.华北平原浅层含氟地下水演化特点及成因[J].地球科学与环境学报,2012,34(04):57.
　XING Li-na,GUO Hua-ming,WEI Liang,et al.Evolution Feature and Gensis of Fluoride Groundwater in Shallow Aquifer from North China Plain[J].Journal of Earth Sciences and Environment,2012,34(03):57.
[9]李树志,白国良,田迎斌.煤矸石回填地基的环境效应研究[J].地球科学与环境学报,2011,33(04):412.
　LI Shu-zhi,BAI Guo-liang,TIAN Ying-bin.Study on Environmental Effect of Foundation Backfilled with Coal Gangue[J].Journal of Earth Sciences and Environment,2011,33(03):412.
[10]张钦,张黎.银川平原主要水环境问题及其对策[J].地球科学与环境学报,2010,32(04):392.
　ZHANG Qin,ZHANG Li.Main Water Environmental Problem and Its Countermeasures in Yinchuan Plain[J].Journal of Earth Sciences and Environment,2010,32(03):392.

备注/Memo

备注/Memo:

收稿日期:2013-04-24
基金项目:国家自然科学基金项目(41222020,41172224);中国地质调查局地质大调查项目(12120113103700)
作者简介:郭华明(1975-),男,江西乐安人,教授,博士研究生导师,工学博士,E-mail:hmguo@cugb.edu.cn。

常用功能

更新日期/Last Update: 2014-01-20