Genesis of geogenic contaminated groundwater: As, F and I

Critical Reviews in Environmental Science and Technology, Journal Year: 2020, Volume and Issue: 51(24), P. 2895 - 2933

Published: Aug. 21, 2020

Chronic exposure to geogenic contaminated groundwaters (GCGs) has caused serious health problems among billions of people worldwide. The hydrogeological features, main sources hazardous substances, dominant hydrogeochemical processes and key factors controlling the occurrence high arsenic (As ≥ 10 μg/L), fluoride (F 1 mg/L), iodine (I 100 μg/L) groundwater are discussed in this review. Although global and/or regional occurrence, environmental geochemical behaviors As, F I have been well documented past three decades, there is still a lack holistic theoretical analysis demonstrate patterns their (co)occurrence. We here propose four basic genetic types GCGs by summarizing characteristics distribution major processes: leaching-enrichment type, burial-dissolution compaction-release evaporation-concentration type. complex mechanisms thus integrated into new framework improve our understanding genesis capability predicting spatial temporal distribution. Moreover, paradigms interdisciplinary convergent research required find best solutions ensure sustainable safe supply resources well-being groundwater-dependent ecosystems human society.

Language: Английский

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Effects of different dissolved organic matter on microbial communities and arsenic mobilization in aquifers

Journal of Hazardous Materials, Journal Year: 2021, Volume and Issue: 411, P. 125146 - 125146

Published: Jan. 15, 2021

Language: Английский

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Unraveling influences of nitrogen cycling on arsenic enrichment in groundwater from the Hetao Basin using geochemical and multi-isotopic approaches

Journal of Hydrology, Journal Year: 2021, Volume and Issue: 595, P. 125981 - 125981

Published: Jan. 19, 2021

Language: Английский

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Unraveling roles of dissolved organic matter in high arsenic groundwater based on molecular and optical signatures

Journal of Hazardous Materials, Journal Year: 2020, Volume and Issue: 406, P. 124702 - 124702

Published: Nov. 28, 2020

Language: Английский

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Application of Fourier transform ion cyclotron resonance mass spectrometry in molecular characterization of dissolved organic matter

Science China Earth Sciences, Journal Year: 2022, Volume and Issue: 65(12), P. 2219 - 2236

Published: Sept. 28, 2022

Language: Английский

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Water–Rock Interactions

Published: Feb. 24, 2023

Mineral dissolution is one of the most important hydrogeochemical processes, regulating groundwater chemistry in natural aquifers. It usually controlled by its solubility. In fresh undersaturated with respect to specific minerals, they are potentially dissolved and contribute components. aquifer systems, minerals high solubility (such as calcite) leads precipitation another mineral low fluorite), which normally changes types or increases concentration components fluoride). Additionally, redox processes induce solid oxidants reductants. Importantly, reductive iron oxides coupled oxidation organic matter other reductants produces ferrous releases adsorbed As. has been accepted major cause arsenic reducing Therefore, would release geogenic contaminants groundwater, closely related endemic disease local residents.

Language: Английский

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Review on arsenic environment behaviors in aqueous solution and soil

Chemosphere, Journal Year: 2023, Volume and Issue: 333, P. 138869 - 138869

Published: May 6, 2023

Language: Английский

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Rational design of anti-interference Fe/Co MOF-coupled PMS process for As(III) removal in DOM-rich groundwater: 1O2-dominated As(III) oxidation and chemisorption of As(V)

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 470, P. 144386 - 144386

Published: June 25, 2023

Language: Английский

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Key drivers regulating arsenic enrichment in shallow groundwater of the Pearl River Delta: Comprehensive analyses of iron, competitive anions, and dissolved organic matter

Applied Geochemistry, Journal Year: 2023, Volume and Issue: 151, P. 105602 - 105602

Published: Feb. 16, 2023

Language: Английский

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Dissolved Organic Matter Sources in High Arsenic Groundwater From a Sand‐Gravel Confined Aquifer

Journal of Geophysical Research Biogeosciences, Journal Year: 2023, Volume and Issue: 128(2)

Published: Feb. 1, 2023

Abstract Sources of dissolved organic matter (DOM) triggering arsenic enrichment in deep confined groundwater is a highly debated issue. Along these lines, the spectroscopic and molecular characteristics DOM were monitored both shallow unconfined from Songnen Basin, China. Results demonstrated that with higher concentrations was characterized by more abundant labile compounds than groundwater. The three‐end‐member mixing model estimated had fraction surface water, while primarily recharged lateral flow. Groundwater sources fluorescence index (FI) values, which suggests sourced water stronger terrestrial signatures. However, mainly situ sedimentary release or by‐products microbial activity Higher values degradation (I_deg) indicate undergone greater extents one. anoxic environments occurred via pathway where saturated low‐molecular‐mass preferentially degraded to produce mid‐molecular‐mass unsaturated, aromatic, This explained significant positive correlations between FI I_deg values. A state conducive work successfully identified distinct DOM, proposed paradigm processing pathways during under environments.

Language: Английский

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