Application of Chitosan in Remediation of Dyes

  • Gbekeloluwa B. Oguntimein
  • Olatunde Animashaun
  • Ivie Okpere
Conference paper


Chitosan is derived from Chitin, which is the exoskeleton of a crab or shrimp shell and some other crustaceans. This project explores this characteristic behavior of chitosan in the removal of dye from solution as a model for the potential application in textile industry wastewater treatment. Azure dye was used as the model dye used in the textile industry wastewater (TIW). The adsorptive characteristics of different chitosan particles sizes for Azure dye using 0.025 M acetate buffer at varying pH values were investigated. The relationship between q =(Co-Ce)/M the ratio of dye adsorbed to the mass of chitosan to the equilibrium concentration Ce was investigated for the different particle sizes.

The experimental data were fitted to three adsorption models – Linear, Freundlich and Langmuir. The data fitted the linear model with highest correlation coefficient, the highest slope values corresponded to the smallest particle size used during the experiment (particle size <0.25 mm diameter) at the lowest pH- 3.5. The data obtained was used in the design a fix-bed process, the mass of chitosan required for an EBCT (Empty Bed Contact Time) of 5 min was calculated to be 4000 kg and a volumetric wastewater treatment of \(3.3 \times 10^{6}\) Liters.


Small Particle Size Aromatic Amine Industrial Wastewater Amino Sugar Shrimp Shell 
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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Gbekeloluwa B. Oguntimein
    • 1
  • Olatunde Animashaun
    • 1
  • Ivie Okpere
    • 1
  1. 1.Department of Civil EngineeringMorgan State UniversityBaltimoreUSA

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