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Optimization of Cr(VI) biosorption onto Aspergillus niger using 3-level Box-Behnken design: Equilibrium, kinetic, thermodynamic and regeneration studies
Heavy metal biosorption is an efficient technology for the decontamination of metal from industrial waste water. The present study focused on exploration of Aspergillus niger towards removal of Cr(VI) from aqueous solution. The influence of different experimental parameters—initial pH, adsorbent dos...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Academy of Scientific Research and Technology, Egypt
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6296609/ https://www.ncbi.nlm.nih.gov/pubmed/30647651 http://dx.doi.org/10.1016/j.jgeb.2017.01.006 |
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author | Mondal, Naba Kumar Samanta, Angela Dutta, Shampa Chattoraj, Soumya |
author_facet | Mondal, Naba Kumar Samanta, Angela Dutta, Shampa Chattoraj, Soumya |
author_sort | Mondal, Naba Kumar |
collection | PubMed |
description | Heavy metal biosorption is an efficient technology for the decontamination of metal from industrial waste water. The present study focused on exploration of Aspergillus niger towards removal of Cr(VI) from aqueous solution. The influence of different experimental parameters—initial pH, adsorbent dose, initial concentration, contact time, shaking speed, temperature, and their combined effect during Cr(VI) adsorption—was investigated by means of response surface methodology based on four factorial Box–Behnken experimental design. Optimized values of initial Cr(VI) concentration, pH, adsorbent dose, and contact time were found as 33.33 mg/L, 4.6, 1.0 g/L, and 48.45 min, respectively. A. niger showed the highest adsorption capacity 11.792 mg/g at initial pH 2.0. Equilibrium data fitted well to the Temkin and Freundlich isotherms. Cr(VI) biosorption showed Pseudo-second order rate kinetics. The activation energy of the adsorption was estimated as 2.9 × 10(−3) kJ/mol. Thermodynamics properties of the Cr(VI) biosorption was spontaneous in nature. Desorption study showed that nearly 94% of the Cr(VI) adsorbed on A. niger could be desorbed using 0.5 M EDTA. |
format | Online Article Text |
id | pubmed-6296609 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Academy of Scientific Research and Technology, Egypt |
record_format | MEDLINE/PubMed |
spelling | pubmed-62966092019-01-15 Optimization of Cr(VI) biosorption onto Aspergillus niger using 3-level Box-Behnken design: Equilibrium, kinetic, thermodynamic and regeneration studies Mondal, Naba Kumar Samanta, Angela Dutta, Shampa Chattoraj, Soumya J Genet Eng Biotechnol III : Microbila Biotechnology Heavy metal biosorption is an efficient technology for the decontamination of metal from industrial waste water. The present study focused on exploration of Aspergillus niger towards removal of Cr(VI) from aqueous solution. The influence of different experimental parameters—initial pH, adsorbent dose, initial concentration, contact time, shaking speed, temperature, and their combined effect during Cr(VI) adsorption—was investigated by means of response surface methodology based on four factorial Box–Behnken experimental design. Optimized values of initial Cr(VI) concentration, pH, adsorbent dose, and contact time were found as 33.33 mg/L, 4.6, 1.0 g/L, and 48.45 min, respectively. A. niger showed the highest adsorption capacity 11.792 mg/g at initial pH 2.0. Equilibrium data fitted well to the Temkin and Freundlich isotherms. Cr(VI) biosorption showed Pseudo-second order rate kinetics. The activation energy of the adsorption was estimated as 2.9 × 10(−3) kJ/mol. Thermodynamics properties of the Cr(VI) biosorption was spontaneous in nature. Desorption study showed that nearly 94% of the Cr(VI) adsorbed on A. niger could be desorbed using 0.5 M EDTA. Academy of Scientific Research and Technology, Egypt 2017-06 2017-02-13 /pmc/articles/PMC6296609/ /pubmed/30647651 http://dx.doi.org/10.1016/j.jgeb.2017.01.006 Text en © 2017 Production and hosting by Elsevier B.V. on behalf of Academy of Scientific Research & Technology. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | III : Microbila Biotechnology Mondal, Naba Kumar Samanta, Angela Dutta, Shampa Chattoraj, Soumya Optimization of Cr(VI) biosorption onto Aspergillus niger using 3-level Box-Behnken design: Equilibrium, kinetic, thermodynamic and regeneration studies |
title | Optimization of Cr(VI) biosorption onto Aspergillus niger using 3-level Box-Behnken design: Equilibrium, kinetic, thermodynamic and regeneration studies |
title_full | Optimization of Cr(VI) biosorption onto Aspergillus niger using 3-level Box-Behnken design: Equilibrium, kinetic, thermodynamic and regeneration studies |
title_fullStr | Optimization of Cr(VI) biosorption onto Aspergillus niger using 3-level Box-Behnken design: Equilibrium, kinetic, thermodynamic and regeneration studies |
title_full_unstemmed | Optimization of Cr(VI) biosorption onto Aspergillus niger using 3-level Box-Behnken design: Equilibrium, kinetic, thermodynamic and regeneration studies |
title_short | Optimization of Cr(VI) biosorption onto Aspergillus niger using 3-level Box-Behnken design: Equilibrium, kinetic, thermodynamic and regeneration studies |
title_sort | optimization of cr(vi) biosorption onto aspergillus niger using 3-level box-behnken design: equilibrium, kinetic, thermodynamic and regeneration studies |
topic | III : Microbila Biotechnology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6296609/ https://www.ncbi.nlm.nih.gov/pubmed/30647651 http://dx.doi.org/10.1016/j.jgeb.2017.01.006 |
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