Significant microplastic accumulation and burial in the intertidal sedimentary environments of the Yellow River Delta

Journal of Hazardous Materials, Год журнала: 2025, Номер 487, С. 137134 - 137134

Опубликована: Янв. 5, 2025

Язык: Английский

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Interpretable machine learning reveals transport of aged microplastics in porous media: Multiple factors co-effect

Water Research, Год журнала: 2025, Номер 274, С. 123129 - 123129

Опубликована: Янв. 12, 2025

Язык: Английский

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Microplastics in ecosystems: Critical review of occurrence, distribution, toxicity, fate, transport, and advances in experimental and computational studies in surface and subsurface water

Journal of Environmental Management, Год журнала: 2024, Номер 370, С. 122492 - 122492

Опубликована: Сен. 21, 2024

Язык: Английский

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State of the Art of CFD-DEM Coupled Modeling and Its Application in Turbulent Flow-Induced Soil Erosion

Geosciences, Год журнала: 2025, Номер 15(1), С. 21 - 21

Опубликована: Янв. 10, 2025

Fluid–soil interaction plays a pivotal role in various geotechnical engineering applications, as it significantly influences processes such erosion, sediment transport, and soil stability. Modeling fluid–soil particle interactions these contexts presents substantial challenges due to the inherent complexity of occurring across multiple characteristic scales. The primary challenge lies vast disparities magnitude between scales, which demand sophisticated modeling techniques accurately capture intricate dynamics involved. Coupled models have emerged essential tools for understanding mechanisms underlying interactions. Among these, CFD-DEM (computational fluid dynamics–discrete element method) approach has gained significant attention. This method provides an effective compromise high-resolution sub-particle coarser mesh-based fluids particles. By doing so, facilitates large-scale simulations while maintaining computational efficiency, making promising solution studying complex scenarios. review highlights application engineering, with specific focus on erosion critical turbulent flow. It explores their implications dynamics, emphasizing several key aspects, including following: laminar vs. flow models: distinctions regimes is predicting fluid-induced movement. Shear stress effects: influence flow-induced shear detachment particles analyzed, particularly erosion-prone environments. Sediment transport mechanisms: factors size, density, water velocity are examined roles governing transport. Knowledge gaps future directions: involve identifying unresolved issues current models, emphasis improving accuracy scalability simulations. delving into aims advance provide insights optimizing applications. also outlines research directions bridge existing knowledge gaps, importance integrating advanced turbulence strategies enhance predictive capabilities frameworks.

Язык: Английский

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Effect of particle density on microplastics transport in artificial and natural porous media

The Science of The Total Environment, Год журнала: 2024, Номер 935, С. 173429 - 173429

Опубликована: Май 22, 2024

The occurrence and persistence of microplastics (MPs) in natural environments are increasing concern. Along with this, the transport MPs sediments has been investigated mainly focusing on effect plastic size shape, media effect, solution chemistry. Yet, influence particle density is only partially understood. Therefore, column experiments variably buoyant saturated glass beads were conducted, parameters quantified using a two-site kinetic model depth-dependent blocking function (the amount retained does not decrease at constant rate depth, majority near inlet). Neutral, sinking, within same range selected, stable water isotope applied as conservative tracer to explore MP movement tested sediments. results showed that 95.5 ± 1.4% sinking remained columns packed gravel, followed by neutral MPs, thus indicating affect mobility. Similar recovered amounts found beads, sediment types do deposition behavior MPs. breakthrough curves accurately described selected model. However, simulated retention profiles overestimated observed layers closest inlet. coupled experimental modeled suggest an enhanced while neutrally exhibit higher mobility comparison. Thus, or can potentially pose contamination risk subsurface porous compared Discrepancies between indicate future development needed for advancing affected density.

Язык: Английский

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Mechanistic analysis of membrane fouling by microplastics in a gravity-driven ceramic membrane reactor for roofing rainwater reuse

Journal of Membrane Science, Год журнала: 2024, Номер 707, С. 122995 - 122995

Опубликована: Июнь 15, 2024

Язык: Английский

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Transport of polystyrene microplastics in bare and iron oxide-coated quartz sand: Effects of ionic strength, humic acid, and co-existing graphene oxide

The Science of The Total Environment, Год журнала: 2024, Номер 946, С. 174270 - 174270

Опубликована: Июнь 24, 2024

Язык: Английский

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Modeling microplastic transport through porous media: challenges arising from dynamic transport behavior

Journal of Hazardous Materials, Год журнала: 2024, Номер 484, С. 136728 - 136728

Опубликована: Ноя. 30, 2024

Язык: Английский

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Effects of particle size and aging on heavy metal adsorption by polypropylene and polystyrene microplastics under varying environmental conditions

Chemosphere, Год журнала: 2024, Номер 369, С. 143843 - 143843

Опубликована: Дек. 1, 2024

Язык: Английский

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Migration of Vanadium Oxide Nanoparticles in Saturated Porous Media

Journal of Hazardous Materials, Год журнала: 2025, Номер 488, С. 137293 - 137293

Опубликована: Янв. 20, 2025

Язык: Английский

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