Cargando…

Formation and In Situ Treatment of High Fluoride Concentrations in Shallow Groundwater of a Semi-Arid Region: Jiaolai Basin, China

Fluorine is an essential nutrient, and excessive or deficient fluoride contents in water can be harmful to human health. The shallow groundwater of the Jiaolai Basin, China has a high fluoride content. This study aimed to (1) investigate the processes responsible for the formation of shallow high-fl...

Descripción completa

Detalles Bibliográficos
Autores principales: Gao, Zongjun, Shi, Mengjie, Zhang, Hongying, Feng, Jianguo, Fang, Shaoyan, Cui, Yechen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7663115/
https://www.ncbi.nlm.nih.gov/pubmed/33147829
http://dx.doi.org/10.3390/ijerph17218075
_version_ 1783609552268165120
author Gao, Zongjun
Shi, Mengjie
Zhang, Hongying
Feng, Jianguo
Fang, Shaoyan
Cui, Yechen
author_facet Gao, Zongjun
Shi, Mengjie
Zhang, Hongying
Feng, Jianguo
Fang, Shaoyan
Cui, Yechen
author_sort Gao, Zongjun
collection PubMed
description Fluorine is an essential nutrient, and excessive or deficient fluoride contents in water can be harmful to human health. The shallow groundwater of the Jiaolai Basin, China has a high fluoride content. This study aimed to (1) investigate the processes responsible for the formation of shallow high-fluoride groundwater (SHFGW); (2) identify appropriate methods for in situ treatment of SHFGW. A field investigation into the formation of SHFGW was conducted, and the results of experiments using soils from high-fluoride areas were examined to investigate the leaching and migration of fluoride. The results showed that the formation of SHFGW in the Jiaolai Basin is due to long-term geological and evaporation processes in the region. Stratums around and inside the basin act as the source of fluoride whereas the terrain promotes groundwater convergence. The hydrodynamic and hydrochemical conditions resulting from slow groundwater flow along with high evaporation and low rainfall all contribute to the enrichment of fluoride in groundwater. In situ treatment of SHFGW may be an effective approach to manage high SHFGW in the Jiaolai Basin. Since soil fluoride in high-fluoride areas can leach into groundwater and migrate with runoff, the construction of ditches can shorten the runoff of shallow groundwater and accelerate groundwater loss, resulting in the loss of SHFGW from high-fluoride areas through river outflow. The groundwater level will be reduced, thereby lowering the influence of evaporation on fluoride enrichment in shallow groundwater. The results of this study can act a reference for further research on in situ treatment for high-fluoride groundwater.
format Online
Article
Text
id pubmed-7663115
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-76631152020-11-14 Formation and In Situ Treatment of High Fluoride Concentrations in Shallow Groundwater of a Semi-Arid Region: Jiaolai Basin, China Gao, Zongjun Shi, Mengjie Zhang, Hongying Feng, Jianguo Fang, Shaoyan Cui, Yechen Int J Environ Res Public Health Article Fluorine is an essential nutrient, and excessive or deficient fluoride contents in water can be harmful to human health. The shallow groundwater of the Jiaolai Basin, China has a high fluoride content. This study aimed to (1) investigate the processes responsible for the formation of shallow high-fluoride groundwater (SHFGW); (2) identify appropriate methods for in situ treatment of SHFGW. A field investigation into the formation of SHFGW was conducted, and the results of experiments using soils from high-fluoride areas were examined to investigate the leaching and migration of fluoride. The results showed that the formation of SHFGW in the Jiaolai Basin is due to long-term geological and evaporation processes in the region. Stratums around and inside the basin act as the source of fluoride whereas the terrain promotes groundwater convergence. The hydrodynamic and hydrochemical conditions resulting from slow groundwater flow along with high evaporation and low rainfall all contribute to the enrichment of fluoride in groundwater. In situ treatment of SHFGW may be an effective approach to manage high SHFGW in the Jiaolai Basin. Since soil fluoride in high-fluoride areas can leach into groundwater and migrate with runoff, the construction of ditches can shorten the runoff of shallow groundwater and accelerate groundwater loss, resulting in the loss of SHFGW from high-fluoride areas through river outflow. The groundwater level will be reduced, thereby lowering the influence of evaporation on fluoride enrichment in shallow groundwater. The results of this study can act a reference for further research on in situ treatment for high-fluoride groundwater. MDPI 2020-11-02 2020-11 /pmc/articles/PMC7663115/ /pubmed/33147829 http://dx.doi.org/10.3390/ijerph17218075 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Gao, Zongjun
Shi, Mengjie
Zhang, Hongying
Feng, Jianguo
Fang, Shaoyan
Cui, Yechen
Formation and In Situ Treatment of High Fluoride Concentrations in Shallow Groundwater of a Semi-Arid Region: Jiaolai Basin, China
title Formation and In Situ Treatment of High Fluoride Concentrations in Shallow Groundwater of a Semi-Arid Region: Jiaolai Basin, China
title_full Formation and In Situ Treatment of High Fluoride Concentrations in Shallow Groundwater of a Semi-Arid Region: Jiaolai Basin, China
title_fullStr Formation and In Situ Treatment of High Fluoride Concentrations in Shallow Groundwater of a Semi-Arid Region: Jiaolai Basin, China
title_full_unstemmed Formation and In Situ Treatment of High Fluoride Concentrations in Shallow Groundwater of a Semi-Arid Region: Jiaolai Basin, China
title_short Formation and In Situ Treatment of High Fluoride Concentrations in Shallow Groundwater of a Semi-Arid Region: Jiaolai Basin, China
title_sort formation and in situ treatment of high fluoride concentrations in shallow groundwater of a semi-arid region: jiaolai basin, china
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7663115/
https://www.ncbi.nlm.nih.gov/pubmed/33147829
http://dx.doi.org/10.3390/ijerph17218075
work_keys_str_mv AT gaozongjun formationandinsitutreatmentofhighfluorideconcentrationsinshallowgroundwaterofasemiaridregionjiaolaibasinchina
AT shimengjie formationandinsitutreatmentofhighfluorideconcentrationsinshallowgroundwaterofasemiaridregionjiaolaibasinchina
AT zhanghongying formationandinsitutreatmentofhighfluorideconcentrationsinshallowgroundwaterofasemiaridregionjiaolaibasinchina
AT fengjianguo formationandinsitutreatmentofhighfluorideconcentrationsinshallowgroundwaterofasemiaridregionjiaolaibasinchina
AT fangshaoyan formationandinsitutreatmentofhighfluorideconcentrationsinshallowgroundwaterofasemiaridregionjiaolaibasinchina
AT cuiyechen formationandinsitutreatmentofhighfluorideconcentrationsinshallowgroundwaterofasemiaridregionjiaolaibasinchina