Full factorial experimental design analysis of Rhodamine B removal from water using organozeolite from coal bottom ash
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2016
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International Journal of Energy and Environment
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Resumo
Zeolitic material synthesized using coal bottom ash as raw material was modified by cationic surfactant.
Raw bottom ash and zeolitic materials were characterized using various techniques to obtain its physical
and chemical properties. Surfactant modified zeolite (SMZBA) was used as alternative low-cost
adsorbent for removal of Rhodamine B (RB) dye from aqueous solution. Dye adsorption equilibrium was
attained after 40 min of the contact time and adsorption kinetics were described by the pseudo second
order kinetic model. Equilibrium adsorption data were adjusted using non-linear equations of the
Langmuir, Freundlich, Temkin and Dubinin-Radushkevich (D-R) models. Error analysis showed that
D-R was the most appropriate for fitting the experimental data. The reuse of the remaining solution
generated from the synthesis of zeolite was effective. To optimize the operating conditions, the
temperature, pH, adsorbent dosage and initial concentration of the dye were investigated by full factorial
experimental design method; adsorbent dosage, initial concentration and interaction of the two were
found as the most significant factors with P = 0.02 lower than 95% confidence level. The results showed
that SMZBA is a good adsorbent for the removal of RB from aqueous effluent.
Como referenciar
ALCANTARA, RAQUEL R.; MUNIZ, RAFAEL O.R.; FUNGARO, DENISE A. Full factorial experimental design analysis of Rhodamine B removal from water using organozeolite from coal bottom ash. International Journal of Energy and Environment, v. 7, n. 5, p. 357-374, 2016. Disponível em: http://repositorio.ipen.br/handle/123456789/27190. Acesso em: 26 Apr 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.