Modeling and Parametric Simulation of Microplastic Transport in Groundwater Environments

Ryu, Han-Sun; Moon, Jinah; Kim, Hee Jung; Lee, Jin Yong

doi:10.3390/app11167189

Cited by 17 publications

(13 citation statements)

References 41 publications

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“…[76][77][78][79][80][81] Research has also been expanded to develop a new upgraded microplastic transport model tailored for groundwater passage investigation from the conventional colloidal model. 76,82 The analysis results reported increasing average microplastic concentration in deeper layers of sediments with decreasing particle size. 83 As PP and PE are the dominant microplastic polymers collected from surface water, followed by PS, PET, PA, PCV, and PU, the two are the most common types detected also in groundwater.…”

Section: Groundwatermentioning

confidence: 97%

Review on invasion of microplastic in our ecosystem and implications

et al. 2022

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Today the world is going through the “Plastic Age.” Nowadays, it is difficult to find a commonly used convenient item that is nonplastic. Plastic production and consumption, thus, increased exponentially and plastic emerged as one of the major concerns for waste management. Recent studies confirmed a faster rate of plastic degradation than previously believed under various conditions (e.g. saltwater, UV, soil interaction) that microplastic has become a new type of health-hazardous pollution source. Much research has been conducted since the discovery of the “Pacific Garbage Patch,” and the scope has expanded from marine to soil, groundwater, air, and food chain. This article underwent a substantial amount of literature review to verify the degree of microplastic pollution progression in major pillars of the environment (aqueous, terrestrial, airborne, bio-organism, and human). Multiple kinds of literature indicated a high possibility of vigorous interaction among the pillars that microplastic is not stationary at the point of contamination but travels across the nation (transboundary) and medium (transmedium). Thus, only the waste reduction policy (i.e. production and consumption reduction) would be effective through a single national or local effort, while pollution and contamination management require more of a collective, if not global, approach. For these characteristics, this article proposes two most urgently required actions to combat microplastic pollution: (a) global acknowledgement of microplastic as transboundary and transmedium pollution source that require international collective action and (b) standardization of microplastic related research including basic definition and experimental specification to secure global comparativeness among data analysis. Without resolving these two issues, it could be very difficult to obtain an accurate global status mapping of microplastic pollution to design effective and efficient global microplastic pollution management policies.

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Section: Groundwatermentioning

confidence: 97%

Review on invasion of microplastic in our ecosystem and implications

et al. 2022

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“…Te toxicity of microplastics is related to the adhesion on their surface of pollutants and the release of phthalates, bisphenol A, and brominated fame retardants, the latter being used to enhance the properties of plastics which, when entering living organisms, have an impact on their health due to their intrinsic physical properties [50,51]. In humans, the entry of MPs into the body can occur with primary and secondary MPs.…”

Section: Microplastic Toxicitymentioning

confidence: 99%

Microplastics in the Ecosystem: A Systematic Review of the Methods for Their Detection and Removal

Rubiños,

Grados,

Medina

et al. 2023

International Journal of Ecology

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Currently, research on microplastics (MPs) has increased due to their rapid distribution throughout the world and their harmful effects on the ecosystem. However, a detailed description of their dispersion and the methods for both detection and removal has not been given. The objective of this research is to carry out a bibliographic review that allows for a multidisciplinary analysis of microplastic contamination and current detection and removal methods. The method used is PRISMA in which articles from reliable databases such as Scopus, Web of science, and Google Scholar were collected and analyzed to finally provide details on the physical and chemical methods for detecting MPs, in addition to presenting the technologies for their removal. As a result of the analysis, critical information was obtained from the different studies on the impact of MPs on the ecosystem and the variation in detection and removal efficiency according to the type of pretreatment and methods applied to the sample. It is concluded that this research is essential to understand the consequences that MPs have on the ecosystem and provide tools to evaluate and improve current technologies, mainly detection and removal.

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“…24−27 The concept of mass balance is still the core for the traditional modeling description of MPs' migration mechanism in soil− groundwater systems. 28,29 Solute transport approaches utilize Eulerian methods, which rely on the traditional advection− dispersion equation (ADE) and consider the fluid as a continuous entity. The ADE was often utilized to characterize the dispersion and transport of a dissolved component over time and concentration gradients, resulting from the fluid movement.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Microplastics Migration in Soil and Groundwater: Insights into Dispersion and Particle Property Effects

Wei,

Chen,

Cao

et al. 2024

Environ. Sci. Technol.

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Migration of microplastics (MPs) in soil−groundwater systems plays a pivotal role in determining its concentration in aquifers and future threats to the terrestrial environment, including human health. However, existing models employing an advection−dispersion equation are insufficient to incorporate the holistic mechanism of MP migration. Therefore, to bridge the gap associated with MP migration in soil−groundwater systems, a dispersion−drag force coupled model incorporating a drag force on MPs along with dispersion is developed and validated through existing laboratory and field-scale experiments. The inclusion of the MP dispersion notably increased the global maximum particle velocity (v maxp ) of MPs, resulting in a higher concentration of MPs in the aquifer, which is also established by sensitivity analysis of MP dispersion. Additionally, increasing irrigation flux and irrigation areas significantly accelerates MP migration downward from soil to deep saturated aquifers. Intriguingly, v maxp of MPs exhibited a nonlinear relationship with MPs' sizes smaller than 20 μm reaching the highest value (=1.64 × 10 −5 m/s) at a particle size of 8 μm, while a decreasing trend was identified for particle sizes ranging from 20 to 100 μm because of the hindered effect by porous media and the weaker effect of the drag force. Moreover, distinct behaviors were observed among different plastic types, with poly(vinyl chloride), characterized by the highest density, displaying the lowest v maxp and minimal flux entering groundwater. Furthermore, the presence of a heterogeneous structure with lower hydraulic conductivity facilitated MP dispersion and promoted their migration in saturated aquifers. The findings shed light on effective strategies to mitigate the impact of MPs in aquifers, contributing valuable insights to the broader scientific fraternity.

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Modeling and Parametric Simulation of Microplastic Transport in Groundwater Environments

Cited by 17 publications

References 41 publications

Review on invasion of microplastic in our ecosystem and implications

Review on invasion of microplastic in our ecosystem and implications

Microplastics in the Ecosystem: A Systematic Review of the Methods for Their Detection and Removal

Modeling of Microplastics Migration in Soil and Groundwater: Insights into Dispersion and Particle Property Effects

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