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Optimization of malachite green biosorption by green microalgae-Scenedesmus quadricauda and Chlorella vulgaris: Application of response surface methodology
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2013 (English)In: Journal of the Taiwan Institute of Chemical Engineers / Elsevier, ISSN 1876-1070, Vol. 44, no 2, 291-294 p.Article in journal (Refereed) Published
Abstract [en]

The present study was carried out to optimize the various experimental conditions for biosorption of malachite green (MG) dye onto Scenedesmus quadricauda and Chlorella vulgaris biomass by applying response surface method (RSM). The effects of process parameters, viz. initial MG dye concentration (mg/L), initial solution pH, algae amount (mg/L) and contact time (mm) on the dye biosorption were analyzed using Box-Behnken design. The maximum experimental dye removal efficiency of 73.49 and 91.61% for S. quadricauda and C vulgaris, respectively, was obtained, which was in agreement with calculated values. The FT-IR analysis confirmed the presence of different functional groups on the surface of biosorbents which were responsible for sorption of MG dye. Kinetic studies revealed that experimental data fitted well with the pseudo-second order model. In addition, thermodynamic parameters for dye biosorption were calculated, and negative Delta G degrees values indicated spontaneous nature of biosorption. (C) 2012 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
2013. Vol. 44, no 2, 291-294 p.
Keyword [en]
Biosorption, Green microalgae, Malachite green (MG) dye, Response surface methodology (RSM)
National Category
Environmental Sciences
Research subject
Environmental Science, Environmental technology
Identifiers
URN: urn:nbn:se:lnu:diva-25220DOI: 10.1016/j.jtice.2012.10.009ISI: 000315838100023OAI: oai:DiVA.org:lnu-25220DiVA: diva2:615487
Available from: 2013-04-10 Created: 2013-04-05 Last updated: 2014-03-27Bibliographically approved

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Bhatnagar, Amit
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Department of Biology and Environmental Science
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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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