Oxidación avanzada catalizada con carbón activado: reducción de la resistencia a antibióticos en aguas residuales

Autores

DOI:

https://doi.org/10.33936/revbasdelaciencia.v10i2.7101

Palavras-chave:

aguas residuales, tratamiento, resistencia antibiótica, microorganismos, antibióticos

Resumo

Este estudo avaliou a eficácia dos processos de oxidação avançada (POA) catalisados com carvão ativado (CA) na redução da carga microbiana e na inibição da resistência a antibióticos em águas residuais. As amostras foram coletadas em uma lagoa de oxidação em Calceta, Manabí, seguindo as normas equatorianas. Foram analisados parâmetros físico-químicos, como turbidez, pH, sólidos totais (ST), TDS e condutividade elétrica (CE), e avaliada a presença de coliformes. Os resultados mostraram que o cloreto férrico (FeCl₃) foi eficaz na redução da turbidez entre 100-1300 ppm, embora doses mais altas aumentaram os ST e a CE. Os POA com H₂O₂, O₃ e CA alcançaram uma eliminação completa de coliformes e uma redução notável na turbidez. Além disso, os tratamentos oxidativos reduziram a resistência bacteriana a antibióticos como amicacina e levofloxacina. Esses resultados destacam o potencial dos POA como tecnologia de tratamento terciário em águas residuais, embora se sugira otimizar as doses e combiná-los com outros processos para melhorar a eliminação de bactérias resistentes.

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Publicado

2025-07-11

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v. 10 n. 2 (2025): Mayo - Agosto

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Copyright (c) 2025 Kerly Moncayo, Alejandra Ormaza, Carlos Banchón

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