Hydrogeochemistry of high-fluoride saline groundwater in the Yuncheng Basin, northern China

The presence of saline groundwater has become one of the most acute problems for water resource management worldwide, since it causes deterioration in water quality and endangers future exploitation of groundwater resources. In addition, high levels of groundwater salinity are often associated with...

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Main Authors: Li Chengcheng, Gao Xubo, Wang Yanxin, Howard Ken
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/24/e3sconf_wri-162018_01031.pdf
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author Li Chengcheng
Gao Xubo
Wang Yanxin
Howard Ken
author_facet Li Chengcheng
Gao Xubo
Wang Yanxin
Howard Ken
author_sort Li Chengcheng
collection DOAJ
description The presence of saline groundwater has become one of the most acute problems for water resource management worldwide, since it causes deterioration in water quality and endangers future exploitation of groundwater resources. In addition, high levels of groundwater salinity are often associated with an increase in the concentrations of fluoride (F). Diverse mechanisms govern salts and fluoride enrichment in groundwater. In this case, saline groundwater with elevated fluoride (up to 14.1 mg/L) in the Yuncheng Basin (YB) was investigated. The research shows: (i) large-scale contamination of F in groundwater is closely associated with groundwater salinization processes in the area; (ii) groundwater with high F concentrations has distinctive major ion chemistry: Na-rich and Ca-poor with a high pH and HCO3- content. The major ion chemistry and pH are controlled by mineral dissolution, cation exchange, and evaporation in the aquifer systems which are also important for F mobilization.
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spelling doaj.art-955208e53e41424caa0dd0c637227ef72022-12-21T23:05:23ZengEDP SciencesE3S Web of Conferences2267-12422019-01-01980103110.1051/e3sconf/20199801031e3sconf_wri-162018_01031Hydrogeochemistry of high-fluoride saline groundwater in the Yuncheng Basin, northern ChinaLi Chengcheng0Gao Xubo1Wang Yanxin2Howard Ken3School of Environmental Studies, China University of GeosciencesSchool of Environmental Studies, China University of GeosciencesSchool of Environmental Studies, China University of GeosciencesGroundwater Research Group, University of Toronto at ScarboroughThe presence of saline groundwater has become one of the most acute problems for water resource management worldwide, since it causes deterioration in water quality and endangers future exploitation of groundwater resources. In addition, high levels of groundwater salinity are often associated with an increase in the concentrations of fluoride (F). Diverse mechanisms govern salts and fluoride enrichment in groundwater. In this case, saline groundwater with elevated fluoride (up to 14.1 mg/L) in the Yuncheng Basin (YB) was investigated. The research shows: (i) large-scale contamination of F in groundwater is closely associated with groundwater salinization processes in the area; (ii) groundwater with high F concentrations has distinctive major ion chemistry: Na-rich and Ca-poor with a high pH and HCO3- content. The major ion chemistry and pH are controlled by mineral dissolution, cation exchange, and evaporation in the aquifer systems which are also important for F mobilization.https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/24/e3sconf_wri-162018_01031.pdf
spellingShingle Li Chengcheng
Gao Xubo
Wang Yanxin
Howard Ken
Hydrogeochemistry of high-fluoride saline groundwater in the Yuncheng Basin, northern China
E3S Web of Conferences
title Hydrogeochemistry of high-fluoride saline groundwater in the Yuncheng Basin, northern China
title_full Hydrogeochemistry of high-fluoride saline groundwater in the Yuncheng Basin, northern China
title_fullStr Hydrogeochemistry of high-fluoride saline groundwater in the Yuncheng Basin, northern China
title_full_unstemmed Hydrogeochemistry of high-fluoride saline groundwater in the Yuncheng Basin, northern China
title_short Hydrogeochemistry of high-fluoride saline groundwater in the Yuncheng Basin, northern China
title_sort hydrogeochemistry of high fluoride saline groundwater in the yuncheng basin northern china
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/24/e3sconf_wri-162018_01031.pdf
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AT wangyanxin hydrogeochemistryofhighfluoridesalinegroundwaterintheyunchengbasinnorthernchina
AT howardken hydrogeochemistryofhighfluoridesalinegroundwaterintheyunchengbasinnorthernchina