Adsorption kinetics for the removal of chromium (VI) from aqueous solutions using acerola (Malpighia glabra L.) seeds

Authors

  • Jéssica Cristian Teles Resende Universidade Federal de Sergipe
  • Denner Déda A. Nunes Universidade Federal de Sergipe
  • Erivaldo N. Reis Universidade Federal de Sergipe
  • Edilson Jesus Santos Universidade Federal de Sergipe
  • Cristina Ferraz Universidade Federal de Serfipe
  • Rogério Luz Pagano Universidade Federal de Sergipe
  • Antônio Santos Silva Universidade Federal de Sergipe
  • Danilo Conceição Silva Universidade Federal de Sergipe

Keywords:

Chromium hexavalent, acerola seeds, adsorption

Abstract

This study aimed to evaluate the use of the acerola seeds (Malpighia emarginata L.) in the removal of Cr(VI) from aqueous solutions. The adsorbent was obtained by heat treatment at 170 °C, crushed and classified by particle size. The determination of Cr(VI) was carried out by UV-visible through the complexation with 1,5-diphenylcarbazide, measuring the absorbance at 540 nm wavelength. The experiments were performed at 25 ± 1 °C, varying contact time 10-140 minutes, pH 2-8 and adsorbent mass 0.1-0.6 grams. The average removal of Cr(VI) was 66% using 0.1 g of biosorbent, pH 2.0 and contact time 120 min. Uptake kinetics follows the pseudo-second-order model.

Author Biographies

Jéssica Cristian Teles Resende, Universidade Federal de Sergipe

Departamento de Engenharia Química. Processos Químicos

Denner Déda A. Nunes, Universidade Federal de Sergipe

Departamento de Engenharia Química. Processos Químicos

Erivaldo N. Reis, Universidade Federal de Sergipe

Departamento de Engenharia Química. Processos Químicos

Edilson Jesus Santos, Universidade Federal de Sergipe

Departamento de Engenharia Química. Processos Químicos e otimização

Cristina Ferraz, Universidade Federal de Serfipe

Departamento de Engenharia Química

Rogério Luz Pagano, Universidade Federal de Sergipe

Departamento de Engenharia Química. Modelagem e Simulação de processos químicos

Antônio Santos Silva, Universidade Federal de Sergipe

Departamento de Matemática. Modelagem matemática

Danilo Conceição Silva, Universidade Federal de Sergipe

Departamento de Engenharia Química

Downloads

Published

2014-10-08

How to Cite

Teles Resende, J. C., Nunes, D. D. A., Reis, E. N., Santos, E. J., Ferraz, C., Pagano, R. L., … Silva, D. C. (2014). Adsorption kinetics for the removal of chromium (VI) from aqueous solutions using acerola (Malpighia glabra L.) seeds. Scientia Plena, 10(10). Retrieved from https://scientiaplena.org.br/sp/article/view/2086

Issue

Vol. 10 No. 10 (2014): October/Outubro 2014

Section

Articles

License

Authors who publish with this journal agree to the following terms:

  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work

Most read articles by the same author(s)

<< < 1 2