Análise do tratamento químico em carvão ativado para remoção do corante azul 5g
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2017-12
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The majority of adsorption studies have been carried out in batch models, which are limited to a laboratory scale and has less application in industrial processes. The fixed beds are particularly interesting due to their easy operation and possibility of regeneration without the bed being dismantled. Thus, the present work had the objective of studying the adsorption equilibrium of reactive blue 5G dye by using raw bone char and its NaOH treated form in bed-fixed system. Dynamic tests were performed with the column flow rising at 30 °C and mean particle diameter of 0.0765 mm. The optimum flow-rate found for both adsorbents was 2 mL min-1. The dynamic isotherms were obtained by the mass balance in the rupture curves, and were adjusted to the Langmuir and Freundlich models. Bone char demonstrated potential to be used as an alternative adsorbent in the removal of blue 5G dye present in textile effluents. And in the adsorption it was also verified that the functionalization of the chemical surface of the adsorbent was not significant in the process.
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Adsorção, Leito Fixo, Funcionalização, Adsorption, Fixed Bed, Functionalization
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MELO, Noemi H. de et al. Análise do tratamento químico em carvão ativado para remoção do corante azul 5g. Revista Processos Químicos, Goiânia, v. 11, n. 22, p. 25-34, jul./dez. 2017. DOI: 10.19142/rpq.v11i22.403. Disponível em: https://ojs.rpqsenai.org.br/index.php/rpq_n1/article/view/403. Acesso em: 23 jan. 2024.