Microplásticos como Vetores de Contaminantes: Modelos Cinéticos e Isotérmicos de Adsorção
Microplásticos como Vetores de Contaminantes: Modelos Cinéticos e Isotérmicos de Adsorção
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DOI: https://doi.org/10.22533/at.ed.5372401085
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Palavras-chave: Microplástico, Bibliometria, Adsorção, Cinética, Isoterma
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Keywords: Microplastic, Bibliometrics, Adsorption, Kinetics, Isotherm
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Abstract: Plastic pollution caused by poor waste management has resulted in a new type of pollution: microplastics. These are defined as particles between 1 µm and 5 mm, which can be primary or secondary, with their characteristics highly dependent on the environment they are in. A bibliometric study has shown a significant increase in publications on the topic, starting in 2014 to the present day, with the United States and China standing out. This increase reflects global awareness of the impacts of microplastics and the importance of characterizing this material. The main environmental concern of microplastics is the combined pollution caused by their high adsorption capacity, which makes them excellent vectors for organic and inorganic pollutants, thus posing significant risks to environmental and human health. Various mathematical models of kinetics and adsorption isotherms, such as pseudo-first and pseudo-second order, and Langmuir and Freundlich isotherms, have proven effective in studying adsorption mechanisms, providing insights into the efficiency and limiting steps of the process. Factors such as the surface area of microplastics, the presence of functional groups, and environmental conditions have shown a critical influence on adsorption. Moreover, the aging of polymers increases the roughness and reactivity of the microparticles. Microplastic pollution is a critical environmental problem that requires continuous attention and mitigation efforts. It is essential to understand the adsorption mechanisms and contributing factors to develop effective environmental management and remediation strategies.
- Elton Jorge da Rocha Rodrigues
- Gustavo Reis Martins,
- Maria Inês Bruno Tavares