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Application of response surface methodology for the biosorption of Acid Blue 25 dye using raw and HCl-treated macroalgae
Isfahan Univ Technol, Dept Fisheries, Fac Nat Resources, Esfahan, Iran.
Isfahan Univ Technol, Dept Fisheries, Fac Nat Resources, Esfahan, Iran.
Isfahan Univ Technol, Dept Fisheries, Fac Nat Resources, Esfahan, Iran.
Kharazmi Univ, Fac Math & Comp Sci, Tehran, Iran.
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2015 (English)In: Desalination and Water Treatment, ISSN 1944-3994, E-ISSN 1944-3986, Vol. 53, no 6, 1710-1723 p.Article in journal (Refereed) Published
Abstract [en]

The present study was conducted to optimize the various experimental conditions, such as biomass loading, initial C.I. Acid Blue 25 (AB25) dye concentration, and initial solution pH for biosorption of dye on raw and HCl-treated brown alga, Padina australis and red alga, Jania adhaerens. Biosorption process was optimized in a batch system under Box-Behnken design. Second-order polynomial equation was successfully used to describe the effects of studied variables on response. The quadratic models exhibited higher R-2 values, significant p-values, and insignificant lack-of-fit p-values showed high adequacy for predicting the response. Chemically modified red alga exhibited better AB25 dye biosorption capacity as compared to modified brown alga. Maximum dye removal efficiencies of 77.34, 71.28, 50.56, and 85.19% for P. australis, HCl-treated P. australis, J. adhaerens, and HCl-treated J. adhaerens, respectively, were obtained at optimal conditions. The surface modification on tested algal biomass was found to be strongly dependent on their cell wall constituents.

Place, publisher, year, edition, pages
2015. Vol. 53, no 6, 1710-1723 p.
Keyword [en]
Acid Blue 25 dye, Response surface methodology, Macroalgae, Biosorption, Chemical modification
National Category
Environmental Sciences
Research subject
Natural Science, Environmental Science
Identifiers
URN: urn:nbn:se:lnu:diva-40894DOI: 10.1080/19443994.2013.855666ISI: 000349390800005OAI: oai:DiVA.org:lnu-40894DiVA: diva2:795912
Available from: 2015-03-17 Created: 2015-03-17 Last updated: 2015-03-17Bibliographically approved

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Bhatnagar, Amit
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Department of Biology and Environmental Science
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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
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  • modern-language-association-8th-edition
  • vancouver
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