Módulo híbrido de membranas de microfiltração e carvão ativado com nanopartículas metálicas
DOI:
https://doi.org/10.22478/ufpb.1981-1268.2019v13n3.47386Resumo
Esta pesquisa contribuiu para o desenvolvimento de módulo híbrido gravitacional de membrana de microfiltração comercial de acetato de celulose e um material bactericida, carvão ativado granular impregnado com 0,5% de prata e 0,5% de cobre (CAG/AgCu). Os materiais adsorventes foram caracterizados por técnicas de adsorção de nitrogênio, microscopia eletrônica de varredura (MEV), espectrometria de energia dispersiva (EDX), microscopia eletrônica de transmissão (MET) e difração de raios-X (DRX). A eficiência do módulo híbrido foi verificada por meio da avaliação do (i) fluxo permeado, (ii) pH, (iii) turbidez, (iv) remoção de cloro livre e (v) eficiência bactericida. O filtro apresentou maiores fluxos iniciais de permeado, não alterou o pH, não aumentou significativamente a turbidez, e apresentou remoções de cloro e Escherichia coli superiores a 90% e 3,7 log respectivamente, revelando seu potencial na tecnologia de filtros para tratamento de água.
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