Differential degradation of petroleum hydrocarbons by Shewanella putrefaciens under aerobic and anaerobic conditions

Frontiers in Microbiology, Год журнала: 2024, Номер 15

Опубликована: Апрель 10, 2024

The complexity of crude oil composition, combined with the fluctuating oxygen level in contaminated environments, poses challenges for bioremediation pollutants, because compound-specific microbial degradation petroleum hydrocarbons under certain conditions. As a result, facultative bacteria capable breaking down both aerobic and anaerobic conditions are presumably effective, however, this hypothesis has not been directly tested. In current investigation,

Язык: Английский

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Biotic and abiotic transformations of aqueous film-forming foam (AFFF)-derived emerging polyfluoroalkyl substances in aerobic soil slurry

Water Research, Год журнала: 2025, Номер 276, С. 123284 - 123284

Опубликована: Фев. 11, 2025

Язык: Английский

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The intricate mechanism for refractory DOM conversion in the traditional treatment of coalbed methane produced water

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 115923 - 115923

Опубликована: Фев. 1, 2025

Язык: Английский

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Abiotic and biotic transformation of petroleum hydrocarbons coupled with redox cycling of structural iron in clay mineral

Geochimica et Cosmochimica Acta, Год журнала: 2025, Номер unknown

Опубликована: Март 1, 2025

Язык: Английский

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Fabrication of CO2-Saturated Nanofluids with Optimized Interfacial Properties for Carbon Capture, Utilization, and Storage

SPE Journal, Год журнала: 2025, Номер unknown, С. 1 - 17

Опубликована: Янв. 1, 2025

Summary In the pursuit of carbon neutrality and mitigation dioxide (CO2) emissions, researchers have been exploring various approaches to integrate capture, utilization, storage (CCUS) with enhanced oil recovery (EOR) techniques. CO2 injection has identified as a promising method reduce crude viscosity enhance its mobility within reservoir. However, high can lead gas fingering, causing channeling reducing sweep efficiency. While foam considered improve conformance during flooding, longevity is negatively affected by harsh reservoir conditions. Polymers, which could be used stabilizers, are limited pressures CO2-induced reduction, hindering their widespread industrial application. Nanofluids, colloidal suspensions nanoparticles in base fluid, emerged potential solution for petroleum industry applications, including wettability alteration, interfacial tension (IFT) efficiency improvement. Functionalized intensifying interactions oil, particularly through adsorption, promises more desirable CO2-EOR. Inspired drug delivery nanomedicine, this study proposes novel approach where loaded onto amine groups controlled slow release target zones, aiming mitigate maximize thereby enhancing CO2-EOR performance. Amine-functionalized were prepared 3-aminopropyltriethoxysilane (KH550), grafted polyethylenimine (PEI)-coated load structure, characteristics between nanofluid extensively examined. It was revealed that amine-functionalized exhibited decent adsorption capacity 3.3 mmol/g. Following absorption at 25°C nanofluid, ζ-potential CO2-saturated increased +38.21 mV, significantly stability. The considerably reduced IFT from 34.78 mN/m 7.82 80°C, 12 MPa. After 36 hours soaking contact angle on oil-wet sandstone surface decreased 121.39° 57.95°. Furthermore, it distinct phase rich heteroatoms appeared nanofluid-crude interface. Fourier-transform ion cyclotron resonance (FT-ICR) mass spectrometry (MS) demonstrated microdispersed predominantly composed acidic heteroatom compounds, mainly form CxHyOz CxHyOzSn, highlighting amine-modified alter properties. These compounds played crucial role formation stabilization emulsions, well optimization oil-water Ultimately, coreflooding experiments, recovered an additional 15.33% following waterflooding.

Язык: Английский

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Alkane degradation coupled to Fe(III) reduction mediated by Gram-positive bacteria

Journal of Hazardous Materials, Год журнала: 2024, Номер 486, С. 136898 - 136898

Опубликована: Дек. 15, 2024

Язык: Английский

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Spatial distribution and molecular evidence of CO2 dark production from lake sediments during anoxic-oxic transitions across a watershed

Chemical Geology, Год журнала: 2024, Номер unknown, С. 122577 - 122577

Опубликована: Дек. 1, 2024

Язык: Английский

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