ADSORÇÃO NA REMEDIAÇÃO DE ÁGUAS: tecnologias para a remoção de agrotóxicos
ADSORÇÃO NA REMEDIAÇÃO DE ÁGUAS: tecnologias para a remoção de agrotóxicos
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DOI: https://doi.org/10.22533/at.ed.200112515046
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Palavras-chave: Adsorção, agrotóxicos, remediação de águas, biossorventes, sustentabilidade hídrica.
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Keywords: Adsorption, pesticides, water remediation, biosorbents, water sustainability.
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Abstract: Water is essential for sustainable development but faces increasing global demand, projected to rise by 20–30% by 2050 due to population growth and changes in consumption patterns. The agricultural sector, responsible for 44% of water usage, significantly contributes to pollution through pesticides—harmful substances such as organochlorines, organophosphates, carbamates, and pyrethroids—which impact ecosystems and human health. Adsorption stands out as an effective, economical, and versatile technique for remediating pesticide-contaminated water, using adsorbents like activated carbon and biosorbents derived from agricultural waste. Isotherm models (Langmuir, Freundlich, Redlich-Peterson, Sips) and kinetic models (pseudo-first and pseudo-second order) help in understanding and optimizing the process. Despite its efficiency, challenges include developing selective adsorbents, managing adsorbed waste, and scaling up for industrial applications. The integration of technologies, environmental regulations, and research on biosorbents is crucial to mitigate water contamination and promote reuse, ensuring sustainability and water security in the face of increasing scarcity.
- Daniely Neckel Rosini
- Caroline Aparecida Matias Pierezan
- Betel Cavalcante Lopes