Genesis of geogenic contaminated groundwater: As, F and I

Critical Reviews in Environmental Science and Technology, Год журнала: 2020, Номер 51(24), С. 2895 - 2933

Опубликована: Авг. 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.

Язык: Английский

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

Journal of Hazardous Materials, Год журнала: 2021, Номер 411, С. 125146 - 125146

Опубликована: Янв. 15, 2021

Язык: 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, Год журнала: 2021, Номер 595, С. 125981 - 125981

Опубликована: Янв. 19, 2021

Язык: 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, Год журнала: 2020, Номер 406, С. 124702 - 124702

Опубликована: Ноя. 28, 2020

Язык: 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, Год журнала: 2022, Номер 65(12), С. 2219 - 2236

Опубликована: Сен. 28, 2022

Язык: Английский

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Water–Rock Interactions

Опубликована: Фев. 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.

Язык: Английский

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Review on arsenic environment behaviors in aqueous solution and soil

Chemosphere, Год журнала: 2023, Номер 333, С. 138869 - 138869

Опубликована: Май 6, 2023

Язык: 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, Год журнала: 2023, Номер 470, С. 144386 - 144386

Опубликована: Июнь 25, 2023

Язык: 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, Год журнала: 2023, Номер 151, С. 105602 - 105602

Опубликована: Фев. 16, 2023

Язык: Английский

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

Journal of Geophysical Research Biogeosciences, Год журнала: 2023, Номер 128(2)

Опубликована: Фев. 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.

Язык: Английский

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