Radon deficit technique applied to the study of the ageing of a spilled LNAPL in a shallow aquifer

Briganti, Alessandra; Voltaggio, Mario; Carusi, Claudio; Rainaldi, Elisa

doi:10.1016/j.jconhyd.2024.104342

Journal of Contaminant Hydrology

2024

DOI: 10.1016/j.jconhyd.2024.104342

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Radon deficit technique applied to the study of the ageing of a spilled LNAPL in a shallow aquifer

Alessandra Briganti,

Mario Voltaggio,

Claudio Carusi

et al.

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Hydrochemical Characteristics, Controlling Factors and Groundwater Sources of Zaozigou Gold Mine

Jiang,

Li,

Zhang

et al. 2024

Sustainability

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The Zaozigou gold deposit is recognized as one of the largest and most significant independent gold deposits in northwest China, representing a colossal orogenic gold-antimony deposit. It is imperative to delve into the hydrochemical characteristics and controlling factors within the mining area to unveil the groundwater circulation evolution process and enhance water resource management. In 2018, a comprehensive collection of 50 groups of groundwater samples was conducted, alongside 17 groups of surface water and underground mine water samples in 2023. Compositional descriptive analysis, correlation analysis, Piper three-plot, Gibbs map, ion ratio method, hydrogeochemical simulation and PCA methods were employed to reveal the chemical characteristics and evolution process of groundwater in the Zaozigou gold mine. Furthermore, employing water isotopes theory allowed for the identification of recharge sources and circulation conditions within the Zaozigou Gold Mine. The findings indicated a transition from HCO3-Na·Ca type polluted water in 2018 to primarily the SO4-Ca·Mg type and HCO3·SO4-Na·Ca·Mg type groundwater hydrochemistry types by 2023. The hydrochemical characteristics of the study area are closely related to the mining depth and time. The chemical characteristics are influenced by various factors such as rock weathering, mineral dissolution, cation exchange processes, atmospheric precipitation as well as human activities related to pollution from industrial mining activities.

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Hydrochemical Characteristics, Controlling Factors and Groundwater Sources of Zaozigou Gold Mine

Jiang,

Li,

Zhang

et al. 2024

Sustainability

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Radon deficit technique applied to the study of the ageing of a spilled LNAPL in a shallow aquifer

Cited by 1 publication

References 39 publications

Hydrochemical Characteristics, Controlling Factors and Groundwater Sources of Zaozigou Gold Mine

Hydrochemical Characteristics, Controlling Factors and Groundwater Sources of Zaozigou Gold Mine

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