Geogenic Phosphorus Enrichment in Groundwater due to Anaerobic Methane Oxidation-Coupled Fe(III) Oxide Reduction

Environmental Science & Technology, Год журнала: 2024, Номер 58(18), С. 8032 - 8042

Опубликована: Апрель 26, 2024

Accumulation of geogenic phosphorus (P) in groundwater is an emerging environmental concern, which closely linked to coupled processes involving FeOOH and organic matter under methanogenic conditions. However, it remains unclear how P enrichment associated with methane cycling, particularly the anaerobic oxidation (AMO). This study conducted a comprehensive investigation carbon isotopes dissolved inorganic (DIC), CO2, CH4, alongside Fe isotopes, microbial communities, functions quaternary aquifers central Yangtze River plain. The found that concentrations tended increase Fe(II) concentrations, δ56Fe, δ13C-DIC, suggesting accumulation due reductive dissolution positive correlations pmoA gene abundance versus δ13C–CH4 δ13C–CH4, prevalent presence Candidatus_Methanoperedens, jointly demonstrated potential significance Fe(III)-mediated AMO process (Fe-AMO) traditional methanogenesis. concentration value, abundance, suggested Fe-AMO facilitated groundwater. Redundancy analysis confirmed this assertion, identifying as primary determinant cooperative influence microorganisms such Candidatus_Methanoperedens Geobacter on enrichment. Our work provided new insights into dynamics subsurface environments.

Язык: Английский

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Evolution of dissolved organic nitrogen chemistry during transportation to the marginal sea: Insights from nitrogen isotope and molecular composition analyses

Water Research, Год журнала: 2023, Номер 249, С. 120942 - 120942

Опубликована: Ноя. 29, 2023

Язык: Английский

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Identification of methane cycling pathways in Quaternary alluvial-lacustrine aquifers using multiple isotope and microbial indicators

Water Research, Год журнала: 2023, Номер 250, С. 121027 - 121027

Опубликована: Дек. 16, 2023

Язык: Английский

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Dissolved organic nitrogen cycling revealed at the molecular level in the Bohai and Yellow Sea

Water Research, Год журнала: 2023, Номер 244, С. 120446 - 120446

Опубликована: Авг. 4, 2023

Язык: Английский

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Co-occurring characteristics and mechanisms of geogenic ammonium and phosphorus in Quaternary alluvial-lacustrine aquifer systems

Journal of Hydrology, Год журнала: 2024, Номер 638, С. 131444 - 131444

Опубликована: Июнь 1, 2024

Язык: Английский

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