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Environmental Chemistry Letters

, Volume 6, Issue 2, pp 77–81 | Cite as

Equilibrium studies on the adsorption of acid dye into chitin

  • Gurusamy Annadurai
  • Jiunn-Fwu Lee
Original Paper

Abstract

We report the adsorption isotherm of acid dye on the surface of chitin, a unique solid adsorbent. Adsorption process offers an attractive benefit for a dyeing house treatment. Influences of essential kinetic parameters such as adsorbent particle size, reaction temperature governing the dye adsorption have been investigated. Adsorptions isotherms of dye on chitin were developed and the equilibrium data fitted well to the Langmuir, Freundlich and Redlich Peterson isotherm model. At optimum conditions maximum dye adsorption capacity of chitin estimated with the Langmuir 44.0, 85.0, 104.3 mg/g and 85.0, 114.10, 113.62 mg/g adsorbent. The results showed that chelating polymer of chitin could be considered as potential adsorbents for acid dye removal from dilute solution.

Keywords

Adsorption Acid dye Chitin Langmuir Freundlich isotherms 

Notes

Acknowledgments

Support for this work by the National Science Council, ROC, under Grant NSC 94-2811-E-008-010 is highly appreciated.

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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  1. 1.Graduate Institute of Environmental EngineeringNational Central UniversityChung-LiTaiwan, ROC

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