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Formation and In Situ Treatment of High Fluoride Concentrations in Shallow Groundwater of a Semi-Arid Region: Jiaolai Basin, China
Abstract 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 […]
China Water Treatment -
Land-use change caused by anthropogenic activities increase fluoride and arsenic pollution in groundwater and human health risk.
Abstract Highlights Groundwater fluoride and arsenic under human lands were highly polluted. The distribution of high fluoride and arsenic in groundwater expanded. The exposure of fluoride and arsenic increased between two land-use periods. Anthropogenic activities could place human at a higher health risk. Policy-makers should take measures to reduce groundwater pollution. Groundwater pollution is becoming […]
China -
[Preliminary Screening for the Urban Forest Against Combined Air Pollution]
Abstract in English; Article in Chinese Combined air pollution has become one of the most important city diseases in China. The construction of an urban forest not only needs landscape aesthetics, but also requires selecting a plant of high comprehensive tolerance threshold based on the needs of the ecological environment of each city, which has […]
China -
[Distribution Characteristics of Per-/polyflouralkyl Substances in River Sediments Around Typical Fluorine Industrial Parks]
Abstract in English; Article in Chinese Perfluoroalkyl and polyfluoroalkyl substances (PFASs) are a group of manmade chemicals and are ubiquitously detected in aquatic environments. China is a major producer and consumer of PFASs. In this study, we investigated the occurrence and characteristics of PFASs in the surface sediments from three fluorine industrial parks in North […]
China Perfluorinated chemicals -
Hydrogeochemistry and fluoride contamination in Jiaokou Irrigation District, Central China: Assessment based on multivariate statistical approach and human health risk.
Highlights The relationships of fluoride and other ions were analyzed using correlation matrices, principal component analysis. Hydrogeochemical controls on high fluoride groundwater chemistry were determined. Non-carcinogenic health risks of fluoride were assessed via different pathways. This study draws attention to the management of high fluoride groundwater to achieve sustainable development Too little and too much […]
China -
Hydrogeochemical and statistical analysis of high fluoride groundwater in northern China
Abstract Understanding the formation of high fluoride (F–) groundwater in water-scarce northern China is critical for the sustainable development of the region. This study investigates the effects of F– enrichment in groundwater from seven typical regions of northern China, including Datong, Guide, Junggar, Yinchuan, Taiyuan, and Tarim basins and the North China Plain. A literature […]
China -
cRemoval of fluoride from water using activated carbon fibres modified with zirconium by a drop-coating method
Highlights Drop-coating yielded a 5.5 times higher fluoride adsorption capacity than soaking. Effects of complexing agent (oxalic acid) and Zr/ACF mass ratio were studied. Hydroxyl groups played a key role in Zr(IV) anchoring and fluoride adsorption. Ion exchange and electrostatic attraction are adsorption mechanisms at different pH. The maximum fluoride adsorption capacity of Zr-ACF was […]
China Water Treatment -
Challenges for Safe and Healthy Drinking Water in China
Abstract Purpose of Review Rapid economic growth and its huge population are putting tremendous pressure on water sustainability in China. Ensuring clean drinking water is a great challenge for public health due to water shortage and pollution. This article reviews current scientific findings on health-related issues on drinking water and discusses the challenges for safe […]
China -
Hydrogeochemical processes controlling the mobilization and enrichment of fluoride in groundwater of the North China Plain
Highlights High F groundwater is distributed in central plain and coastal area of the NCP. Hydrochemical evolution along groundwater flow favors F mobilization in groundwater. Pore water compacted from clayey sediments had a high F concentration. Land subsidence causes the release of F trapped in strata into groundwater. Abstract Fluoride enrichment in groundwater at the […]
China -
Modified Crushed Oyster Shells for Fluoride Removal from Water
Abstract Elevated concentrations of fluoride ions (F–) in natural groundwater are a worldwide problem. Discarded oyster shells were ground to <100 µm particle size to produce oyster shell powder (OS). A subset of the OS was heated to produce calcined oyster shell (COS). A subset of the COS was further treated with 1 M phosphoric […]
China Water Treatment
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