REMOVAL OF ENDOCRINE DISRUPTORS FROM WASTEWATER WITH ADSORPTION ONTO TIN PILLARED MONTMORILLONITE

REMOVAL OF ENDOCRINE DISRUPTORS FROM WASTEWATER WITH ADSORPTION ONTO TIN PILLARED MONTMORILLONITE

MELO, D. Q.; PESSOA, G. P.; OLIVEIRA, J. T.; SANTOSAND, A. B.; NASCIMENTO, R. F; VIDAL, C. B.; RAULINO, G. S. C.

Artigo:

ABSTRACT –SnO2 pillared montmorillonite clay was prepared and examined as adsorbent in the adsorption of endocrine disruptors compounds (EDCs) and compared with its starting material. The pillared samples showed a considerable increase in EDCs adsorption capacity in comparison to the natural clay mineral. This effect can be related to the textural and structural changes produced during the pillaring process. Consequently, Tin pillared clays could be the new material to be used in studied environmental process. Kinetics studies indicated that the multicomponent adsorption equilibrium was reached within 1 h and followed pseudo-second-order kinetics. The Langmuir, Freundlich, Redlich-Peterson and Temkin models were used to evaluate the EDCs adsorption capacity by pillared clay. The Freundlich model was found to be suitable for all compounds in a multicomponent system.

ABSTRACT –SnO2 pillared montmorillonite clay was prepared and examined as adsorbent in the adsorption of endocrine disruptors compounds (EDCs) and compared with its starting material. The pillared samples showed a considerable increase in EDCs adsorption capacity in comparison to the natural clay mineral. This effect can be related to the textural and structural changes produced during the pillaring process. Consequently, Tin pillared clays could be the new material to be used in studied environmental process. Kinetics studies indicated that the multicomponent adsorption equilibrium was reached within 1 h and followed pseudo-second-order kinetics. The Langmuir, Freundlich, Redlich-Peterson and Temkin models were used to evaluate the EDCs adsorption capacity by pillared clay. The Freundlich model was found to be suitable for all compounds in a multicomponent system.

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DOI: 10.5151/chemeng-cobeq2014-1761-17684-145592

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Como citar:

MELO, D. Q.; PESSOA, G. P.; OLIVEIRA, J. T.; SANTOSAND, A. B.; NASCIMENTO, R. F; Carla Bastos; Giselle Santiago Cabral Raulino; "REMOVAL OF ENDOCRINE DISRUPTORS FROM WASTEWATER WITH ADSORPTION ONTO TIN PILLARED MONTMORILLONITE", p-9146-9153. In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 23591757, DOI 10.5151/chemeng-cobeq2014-1761-17684-145592