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Biosorption of direct azo dye from aqueous phase onto Spirogyra sp. I02: Evaluation of kinetics and mechanistic aspects

Paper ID Volume ID Publish Year Pages File Format Full-Text
4742 241 2008 9 PDF Available
Title
Biosorption of direct azo dye from aqueous phase onto Spirogyra sp. I02: Evaluation of kinetics and mechanistic aspects
Abstract

Sorption of azo dye from aqueous phase was evaluated using non-viable algal Spirogyra I02 as biosorbent. Agitated non-flow batch sorption studies revealed the capacity of algal biosorbent to adsorb the azo dye. Influence of dye concentration, effect of pH, biosorbent dosage, temperature effect and sorption–desorption were studied to evaluate the algal-dye sorption mechanism. Sorption interaction of dye on to algal species obeyed the pseudo second-order rate equation. Experimental data showed good fit with the Langmuir's adsorption isotherm model. Dye sorption was found to be dependent on the aqueous phase pH and the uptake was observed to be higher at lower pH. Maximum dye sorption was observed at 30 °C temperature. Sorption–desorption of dye into organic and/or inorganic solutions were observed and this indicated the combined effect of chemical and ion-exchange sorption phenomena.

Keywords
Biosorption; Algal Spirogyra; Kinetics; pH; Intraparticle diffusion model; Pseudo first-order; Pseudo second-order; Biosorbent; Isotherm
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Biosorption of direct azo dye from aqueous phase onto Spirogyra sp. I02: Evaluation of kinetics and mechanistic aspects
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 38, Issue 1, 15 January 2008, Pages 61–69
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us