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61,005 resultsShowing papers similar to Prediction of nanoplastics aggregation in wastewaters
ClearModeling the evolution of nanoplastic particle aggregation in aquatic systems
Researchers developed a mathematical model to simulate how nanoplastic particles aggregate over time in freshwater and marine aquatic systems as a function of particle size, ionic strength, pH, and organic matter concentration. The model predicted that nanoplastics aggregate rapidly under typical estuarine salinity conditions, transitioning from colloidal to settling-sized clusters within hours.
Molecular modeling to elucidate the dynamic interaction process and aggregation mechanism between natural organic matters and nanoplastics
Researchers used molecular modeling to understand how nanoplastics interact with natural organic matter found in water environments. They found that the chemical properties of both the plastic surface and the organic molecules determined whether they clumped together or remained dispersed. The study provides new molecular-level insights into how nanoplastics behave and spread in natural water systems, which is important for predicting their environmental fate.
Aggregation dynamics of nanoplastics: insights through real world waste
Researchers studied the aggregation behavior of nanoplastics generated from real-world plastic waste rather than synthetic laboratory particles. The study found that PET and polystyrene nanoplastics sourced from discarded bottles and packaging exhibited distinct colloidal behaviors in aquatic conditions, providing more realistic insights into how nanoplastics behave in natural environments.
Statistical Thermodynamic Description of Heteroaggregation between Anthropogenic Particulate Matter and Natural Particles in Aquatic Environments
Researchers developed a thermodynamic model to describe how nanoparticles and microplastics aggregate with each other and with natural particles in aquatic environments. Understanding aggregation processes is critical for predicting how microplastics move through water systems and where they ultimately settle.
Nanoplastics display strong stability in aqueous environments: Insights from aggregation behaviour and theoretical calculations
Nanoplastics released into aquatic environments were found to be highly stable and resist aggregation and settling under many conditions, meaning they can persist and disperse widely rather than quickly sinking. This environmental stability makes nanoplastics particularly concerning as long-lived and mobile contaminants in water systems.
Targeting nanoplastic and microplastic in wastewater
Researchers established a novel correlation between nanoplastic removal and total suspended solids (TSS) reduction during aggregation-based wastewater treatment, successfully predicting nanoplastic removal across a wide range of polymer types, sizes, surface functionalisations, and ageing histories under 41 different treatment conditions. The work addresses a key methodological gap in monitoring nanosized plastic pollutants in wastewater effluent streams.
New Insights into the Formation of Aggregates of Bidisperse Nano- and Microplastics in Water Based on the Analysis of In Situ Microscopy and Molecular Simulation
Researchers combined microscopy and molecular simulations to study how nano- and microplastic particles of different sizes clump together in water. They found that mixing particle sizes delays the onset of rapid aggregation but does not change the overall growth pattern. The findings help explain how plastic particles behave in salty water like oceans and wastewater, which is important for designing effective removal strategies.
Nanoplastics Aggregation in Environment: Analytical Methods and Environmental Implications
This review examines how nanoplastics aggregate in the environment—clumping together or attaching to other particles—and how this affects their analysis and ecological impact. Aggregation changes how nanoplastics move through water and accumulate in organisms, complicating risk assessment for these extremely small plastic particles.
The environmental fate of nanoplastics: What we know and what we need to know about aggregation
Researchers systematically analyzed experimental studies on nanoplastic aggregation behavior, evaluating the environmental relevance of 377 solution chemistries and 163 particle models. The study found that commonly used polymer latex spheres do not accurately represent real-world nanoplastics, and suggests that incidentally produced nanoplastics may be more sensitive to heteroaggregation than previously expected.
Aggregation Kinetics and Stability of Biodegradable Nanoplastics: Effects of Weathering and Proteins
Researchers studied how weathering and proteins affect the aggregation and stability of biodegradable nanoplastics in water. Biodegradable plastics can still generate persistent nanoscale particles that behave differently depending on environmental conditions, complicating assumptions about their safety compared to conventional plastics.
Sedimentation behavior of aggregated microplastics: Influence of particle size and water constituents in environmental waters
Laboratory experiments investigated how aggregation of microplastics with sediments and organic matter affects their sinking rates in water, finding that aggregate composition strongly influences settling velocity. These findings improve models predicting whether microplastics sink to the seafloor or remain suspended in the water column.
Hybrid modeling of hetero-agglomeration processes: a framework for model selection and arrangement
Researchers developed a hybrid modeling framework for hetero-agglomeration processes — the clumping together of different particle types — to better predict how microplastics interact with natural particles in aquatic environments. The framework helps select appropriate models for different environmental conditions and particle combinations.
The suspension stability of nanoplastics in aquatic environments revealed using meta-analysis and machine learning
Researchers combined machine learning and meta-analysis to model nanoplastic aggregation behavior in water, finding that surface charge is the dominant factor, and predicting that nanoplastics will aggregate and settle in estuarine and low-flow conditions such as those found in China's Poyang Lake.
Microplastics and Nanoplastics in Aquatic Environments: Aggregation, Deposition, and Enhanced Contaminant Transport
This review examined the aggregation, deposition, and transport of microplastics and nanoplastics in aquatic environments, synthesizing how particle properties and water chemistry govern their fate and mobility in rivers, lakes, and oceans.
A versatile test system to determine nanomaterial heteroagglomeration attachment efficiency
Researchers developed a standardized test system to measure how readily nanoparticles — including nanoplastics — clump together with other environmental particles, which determines how fast they settle out of water. This attachment efficiency data is critical for modeling nanoplastic fate and risk in aquatic environments.
Understanding and Improving Microplastic Removal during Water Treatment: Impact of Coagulation and Flocculation
Researchers systematically tested coagulation and flocculation for removing microplastics from drinking water, finding that removal efficiency depended strongly on plastic particle size and whether particles had been weathered, with smaller pristine particles being the hardest to remove.
Heterogeneous aggregation of microplastics and mineral particles in aquatic environments: Effects of surface functional groups, pH, and electrolytes
Researchers studied how microplastics clump together with soil and rock minerals in water, finding that positively charged minerals bound to plastic particles nearly three times more effectively than clay minerals, and that low pH and calcium ions dramatically accelerated aggregation. Understanding these dynamics helps predict where microplastics will settle or stay suspended in rivers, lakes, and aquifers.
A review of microplastics aggregation in aquatic environment: Influence factors, analytical methods, and environmental implications
This review examines how microplastics clump together in aquatic environments, a behavior called aggregation that affects where they end up and how available they are to organisms. Researchers evaluated the factors that influence aggregation, including water chemistry, particle size, and the presence of natural organic matter. The study identifies important gaps in field research and calls for standardized methods to better understand how aggregation shapes the environmental fate of microplastics.
Effects of temperature and particle concentration on aggregation of nanoplastics in freshwater and seawater
The aggregation behavior of nanoplastics in freshwater and seawater was studied at different temperatures and particle concentrations, finding that salinity, particle concentration, and temperature all significantly influenced aggregation rates with implications for nanoplastic fate in aquatic environments.
Modeling impacts of river hydrodynamics on fate and transport of microplastics in riverine environments
Researchers built a computer model to simulate how microplastics travel and transform in river systems, accounting for particle aggregation and breakage driven by water flow. They found that microplastics clump together significantly in the early stages after entering a river, which changes the size distribution of particles flowing downstream. The study suggests that river conditions play a major role in determining what size and form of microplastics eventually reach the ocean.
Effect of the Surface Hydrophobicity–Morphology–Functionality of Nanoplastics on Their Homoaggregation in Seawater
Researchers found that nanoplastic surface hydrophobicity, morphology, and functional chemistry strongly govern homoaggregation behavior in aquatic environments, with more hydrophobic and functionalized particles forming larger, faster-settling aggregates that alter their environmental fate and bioavailability.
Population balance modeling coupled with extended DLVO theory to describe nanoplastic agglomeration in water
Researchers coupled population balance equations with extended DLVO colloidal theory to model how water chemistry and UV radiation drive nanoplastic agglomeration in aquatic systems, validating the model against experimental data and demonstrating its potential to predict nanoplastic transport in surface water and improve filtration system design.
Recent Advances in the Aggregation Behavior of Nanoplastics in Aquatic Systems
This review examines recent advances in understanding nanoplastic aggregation behavior in aquatic systems, focusing on how polymer surface modification and the use of novel surfactants can be designed to promote aggregation of nanoplastics from the environment. The review distinguishes this approach from conventional surfactant use aimed at dispersing insoluble compounds.
Recent innovations in microplastics and nanoplastics removal by coagulation technique: Implementations, knowledge gaps and prospects
This review evaluates coagulation, a water treatment technique that uses chemicals to clump particles together for easier removal, as a method for eliminating microplastics and nanoplastics from water. Researchers found that coagulation can effectively remove these plastic particles, especially when combined with other treatment steps, but performance varies based on plastic size, shape, and water chemistry. The study identifies key knowledge gaps and recommends further research to optimize coagulation for real-world microplastic removal.