Novel insights into the DOM-driven processes affecting nitrogen cycling in shallow aquifers of the West Liao River Plain: Evidence from FT-ICR MS and isotope analyses

Journal of Hydrology, Journal Year: 2025, Volume and Issue: unknown, P. 132969 - 132969

Published: Feb. 1, 2025

Language: Английский

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Prediction of arsenic and fluoride in groundwater of the North China Plain using enhanced stacking ensemble learning

Water Research, Journal Year: 2024, Volume and Issue: 259, P. 121848 - 121848

Published: May 29, 2024

Language: Английский

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Ammonium enrichment, nitrate attenuation and nitrous oxide production along groundwater flow paths: Carbon isotopic and DOM optical evidence

Journal of Hydrology, Journal Year: 2024, Volume and Issue: 632, P. 130943 - 130943

Published: Feb. 27, 2024

Language: Английский

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High biodegradability of microbially-derived dissolved organic matter facilitates arsenic enrichment in groundwater: Evidence from molecular compositions and structures

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 470, P. 134133 - 134133

Published: March 27, 2024

Language: Английский

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Characteristics of dissolved organic matter contribute to Geogenic ammonium enrichment in coastal versus alluvial-lacustrine aquifers

Water Research, Journal Year: 2023, Volume and Issue: 250, P. 121025 - 121025

Published: Dec. 16, 2023

Language: Английский

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Transformation of dissolved organic matter and related arsenic mobility at a surface water-groundwater interface in the Hetao Basin, China

Environmental Pollution, Journal Year: 2023, Volume and Issue: 334, P. 122202 - 122202

Published: July 13, 2023

Language: Английский

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Revealing Degradation Pathways of Soluble and Dissolved Organic Matter in Alluvial-Lacustrine Aquifer Systems Impacted by High Levels of Geogenic Ammonium

Water Research, Journal Year: 2024, Volume and Issue: 264, P. 122215 - 122215

Published: Aug. 6, 2024

Language: Английский

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Mechanisms controlling spatial variability of geogenic ammonium in coastal aquifers: Insights from Holocene sedimentary evolution

Water Research, Journal Year: 2025, Volume and Issue: 274, P. 123124 - 123124

Published: Jan. 10, 2025

Language: Английский

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Surface water infiltration and sediment degradation shaping dissolved organic matter in groundwater related to chronic kidney disease of unknown etiology

Journal of Hydrology, Journal Year: 2025, Volume and Issue: 652, P. 132699 - 132699

Published: Jan. 12, 2025

Language: Английский

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Characteristics of Dissolved Organic Matter in Uranium Hosting Aquifers and Potential Molecular Transformation During Neutral In Situ Leaching

Journal of Geophysical Research Biogeosciences, Journal Year: 2024, Volume and Issue: 129(3)

Published: March 1, 2024

Abstract Dissolved organic matter (DOM) is widespread in uranium (U) hosting aquifer, a key substance affecting CO 2 + O situ leaching (ISL) of U by consuming injected . However, molecular composition and transformation DOM are poorly understood this aquifer during the mining. To address issue, Fourier transform ion cyclotron resonance mass spectrometry was applied to investigate molecules groundwater samples rock collected from mining aquifer. The high proportion labile tyrosine‐like component BIX value monitoring wells (BM) indicated biological origin DOM. CHOS aliphatic were major components water‐soluble (WSOM) U‐bearing rocks, but CHO highly unsaturated structures with oxygen (HUSHO) main BM. ISL led release WSOM oxidation DOM, which accounted for 24.5%–57.4% 39.1%–65.7% expected respectively. Potential transformations (PMTs) results showed that intragroup dominated, remarkable CHON CHONS occurred ISL. positive net PMTs condensed aromatic structure (CAS), (AS), suggested they transformed HUSLO HUSHO. A gradual decrease (DBE−O)/C wa increase NOSC saturated degree state increased This work successfully identified characteristics proposed paradigm pathways

Language: Английский

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