Research Article Open Access

Hexavalent Chromium Removal by Litchi chinensis Sonn Peel

Ismael Acosta-Rodriguez, Rigoberto Martinez-Perez, Juan F. Cardenas-Gonzalez, Maria de Guadalupe Moctezuma-Zarate and Victor Manuel Martinez-Juarez


Problem statement: We studied the Chromium (VI) removal capacity in aqueous solution by the litchi peel. Approach: We use the diphenylcarbazide method to evaluate the metal concentration. Results: The highest biosorption of the metal (50 mg L-1) occurs within 6 min, at pH of 1 and 28°C. According to temperature, the highest removal was observed at 40 and 50°C, in 45 min, when the metal (1 g L-1) was completely adsorbed. At the analyzed concentrations of Cr (VI), litchi peel, showed excellent removal capacity, besides it removes efficiently the metal in situ (100% removal, 5 days of incubation, 5 and 10 g of biomass). After 1 h of incubation the studied biomass reduces 1.0 g of Cr (VI) with the simultaneous production of Cr (III). Conclusion: The shell can be used to eliminate it from industrial wastewater."

American Journal of Biochemistry and Biotechnology
Volume 8 No. 1, 2012, 7-13


Submitted On: 13 December 2011 Published On: 1 March 2012

How to Cite: Acosta-Rodriguez, I., Martinez-Perez, R., Cardenas-Gonzalez, J. F., Moctezuma-Zarate, M. G. & Martinez-Juarez, V. M. (2012). Hexavalent Chromium Removal by Litchi chinensis Sonn Peel. American Journal of Biochemistry and Biotechnology, 8(1), 7-13.

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  • Cr (VI)
  • removal
  • litchi peel
  • bioremediation
  • diphenylcarbazide