Adsorption of Fast Green on to Coffee Husk
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N. Ahalya1, M.N. Chandraprabha1, R.D. Kanamadi2, T.V. Ramachandra3,*


1Department of Biotechnology, M.S. Ramaiah Institute of Technology,Bangalore.
2Department of Zoology, Karnatak University, Dharwad, Karnataka.
3 Centre for Ecological Sciences, Indian Institute of Science, Bangalore
*Corresponding author: T.V. Ramachandra, cestvr@ces.iisc.ernet.in
Web: http://wgbis.ces.iisc.ernet.in/energy

Citation: N. Ahalya, M.N. Chandraprabha1, R.D. Kanamadi and T.V. Ramachandra. Adsorption of Fast Green on to Coffee Husk, Journal of Chemical Engineering and Research Volume 2, Number 1 (2014), pp. 201-207 , http://www.deltonbooks.com

Conclusion

The results of the present investigation show that coffee husk is an effective adsorbent for the removal of fast green from aqueous solutions, and its adsorption capacity is quite comparable to the other adsorbents reported in literature. Coffee husk was selected for studying adsorption due to its availability in India, as well as to assess the possibility of utilising an agricultural waste for dye removal. The results show that initial dye concentrations, pH and adsorbent dose highly affect the dye uptake capacity of adsorbents. The equilibrium has been analyzed using Freundlich and Langmuir adsorption isotherms.. The calculated isotherm constants were used to compare the adsorptive capacities of adsorbents for dye removal. Thus the use of coffee husk as an adsorbent can be viewed as an effective waste management strategy.