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20 resultsShowing papers similar to Cotransport of PFOA with Different Electrically Charged Plastic Particles in Saturated Porous Media
ClearCotransport of different electrically charged microplastics with PFOA in saturated porous media
Researchers examined how differently charged microplastics co-transport with PFOA through saturated porous media, finding that surface charge significantly influences both MP mobility and PFOA transport behavior, with implications for groundwater contamination.
Effects of ionic strength, cation type and pH on the cotransport of microplastics with PFOA in saturated porous media
Researchers investigated how microplastics and the chemical contaminant PFOA interact when traveling together through saturated soil. The study found that microplastics generally inhibited PFOA transport through adsorption, while PFOA accelerated microplastic movement through electrostatic effects, demonstrating that co-contamination can alter the environmental fate of both pollutants.
Particle size and co-presence of PFOA alter the transport of microplastics in saturated natural sediment
Researchers investigated how microplastic particle size and the co-presence of the contaminant PFOA affect microplastic transport through natural sediment. The study found that smaller microplastics were more mobile, while PFOA altered transport dynamics, indicating that co-occurring pollutants can influence how microplastics move through environmental substrates.
The individual transport, cotransport and immobilization with solar pyrolysis biochar of microplastics and plasticizer in sandy soil
Researchers tracked the individual transport, co-transport, and immobilization of microplastics in porous media, finding that plastic particle behavior differs significantly depending on surface charge and pore structure interactions. The results improve predictions of where microplastics migrate and accumulate in soils and aquifers.
Cotransport of 6PPD-Q and pristine/aged microplastics in porous media: An insight based on transport forms and mechanisms
Researchers investigated the cotransport of tire-derived chemical 6PPD-Q with pristine and aged microplastics through porous media. The study found that pristine microplastics adsorbed more 6PPD-Q than aged ones due to hydrophobic interactions, and that microplastics can facilitate the transport of this toxic tire rubber compound through soil and groundwater systems.
Effect of biosurfactants on the transport of polyethylene microplastics in saturated porous media
This study examined how biosurfactants -- surface-active compounds produced by microorganisms -- affect the transport of polyethylene microplastics through saturated porous media. Biosurfactants altered microplastic surface charge and mobility, generally enhancing transport through soil-like media, with implications for assessing the risk of microplastic groundwater contamination following soil remediation treatments.
Transport of different microplastics in porous media: Effect of the adhesion of surfactants on microplastics
Researchers investigated how surfactant adhesion on different microplastic surfaces affects their transport through porous media, finding that surfactant interactions vary with microplastic type and significantly alter their mobility in subsurface environments.
Effects of Co-Existing Microplastics on Adsorption–Desorption Behavior of Perfluorooctanoic Acid in Soil: Co-Sorption and Mechanism Insight
Researchers investigated how microplastics affect perfluorooctanoic acid (PFOA) adsorption in agricultural soil, finding that irregularly shaped microplastics augmented PFOA adsorption through altered functional groups, with kinetics following a quasi-second-order model and isotherms fitting the Freundlich model, indicating microplastics can modify PFOA environmental behavior in agroecosystems.
Behaviour and transport of microplastics under saturated flow conditions in sediments and soils
Researchers investigated the behavior and transport of microplastics under saturated flow conditions in sediments and soils, examining how physical and chemical properties of microplastic particles influence their mobility through porous geological media. The study addressed knowledge gaps in understanding subsurface microplastic transport relevant to groundwater contamination and the fate of microplastics deposited in terrestrial environments.
Microplastics/nanoplastics in porous media: Key factors controlling their transport and retention behaviors
This review examines what controls how microplastics and nanoplastics move through soil and other porous materials like sand and sediment. Factors like particle size, shape, surface charge, water flow speed, and the presence of other pollutants all influence whether plastics stay in place or travel deeper into groundwater. Understanding these transport behaviors is important for assessing the risk of microplastics contaminating underground drinking water sources.
Behaviour and transport of microplastics under saturated flow conditions in sediments and soils
Researchers investigated the behaviour and transport of microplastics under saturated flow conditions in sediments and soils, examining how particle properties influence movement through porous media. The study aimed to improve understanding of subsurface microplastic fate and transport relevant to both soil and groundwater contamination.
Facilitated transport of microplastics and nonylphenol in porous media with variations in physicochemical heterogeneity
Researchers found that when microplastics and the endocrine disruptor nonylphenol coexist, their mobility through soil is enhanced due to mutual association and competition for retention sites, increasing potential groundwater contamination risk.
Nanoplastics as carriers of organic pollutants in seawater-saturated porous media: a quantitative comparison of transport pathways
Researchers quantitatively compared transport pathways of non-polar organic pollutants carried by nanoplastics through seawater-saturated porous media, demonstrating that the carrier effect of nanoplastics is the primary mechanism inhibiting pollutant migration and enabling their co-transport in coastal and marine subsurface environments.
Cotransport and deposition of biochar with different sized-plastic particles in saturated porous media
Researchers studied how biochar and plastic particles (nanoplastics and microplastics) mutually affect each other's transport through water-saturated sand, finding that small plastic particles enhanced biochar mobility while biochar consistently suppressed plastic particle transport across all sizes, due to heteroaggregation altering surface charge and steric interactions.
Effect of surfactants on the transport of polyethylene and polypropylene microplastics in porous media
Researchers investigated how surfactants (common chemicals in detergents) affect the movement of polyethylene and polypropylene microplastics through sand and soil. The study found that surfactants can help microplastics travel farther through porous materials, potentially increasing the spread of contamination. Factors like surfactant concentration, water chemistry, and flow rate all influenced how easily microplastics moved, suggesting that everyday chemicals may worsen microplastic pollution in groundwater.
The partition behavior of perfluorooctanesulfonate (PFOS) and perfluorooctanesulfonamide (FOSA) on microplastics
This study examined the sorption of PFOS and FOSA — two persistent fluorinated chemicals — onto polyethylene, polystyrene, and PVC microplastics and found that sorption capacity varied by polymer type and was influenced by pH, salinity, and organic matter. The results suggest microplastics could act as transport vectors for these persistent pollutants in marine environments.
Mechanism of perfluorooctanoic acid on microplastic transport in Northeast farmland soils: Based on irrigation mode
Researchers found that perfluorooctanoic acid (PFOA) contamination in irrigation water influences microplastic migration through three types of agricultural soils, with high PFOA concentrations and biochar additions both inhibiting downward microplastic movement into deeper soil layers.
Surfactant-mediated transport of polyvinyl chloride nanoplastics in porous media: Influence of natural organic matter, natural inorganic ligands and electrolytes
Researchers studied how surfactants affect the movement of polyvinyl chloride nanoplastics through soil and groundwater systems. They found that surfactants, particularly anionic ones, significantly enhance nanoplastic transport through porous materials, while certain minerals and organic matter can either help or hinder movement. The findings are important for understanding how nanoplastics spread through subsurface environments and potentially contaminate groundwater.
Effect of carbon chain length and concentration of perfluorinated compounds on polytetrafluoroethylene microplastics transport behavior
Researchers investigated how perfluorinated compounds (PFAS), specifically PFOA and PFPeA, affect the movement of polytetrafluoroethylene microplastics through porous materials like soil and sand. They found that longer-chain PFAS enhanced microplastic transport more effectively than shorter-chain versions, likely due to greater surface adhesion and spatial resistance effects. The study helps explain how PFAS contamination in the environment may influence how far microplastics travel through groundwater systems.
The co-transport behavior of polyacrylonitrile microplastics and aniline compounds in porous media
Experiments examined how polyacrylonitrile microplastics move through soil alongside other contaminants, finding that co-transport interactions affected both microplastic mobility and the fate of associated pollutants. Understanding these dynamics is important for assessing the spread of microplastics and their cargo in terrestrial environments.