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International Academy of Wood Science 2018 Annual Meeting

Papers Proceedings »

Hexavalent chromium removal present in water using functionalized hydrochar with HSO3

The present of heavy metals in waste water and in the natural water environment has been a serious problem, one of these metals is chromium, which can be present in the water in the form Cr (IV) or hexavalent chromium, being this its more toxic form causing carcinogenic effects, due to that the importance of his removal from waste water that contain this pollutant. The aim of this work is to prove the hexavalent chromium removal capacity of functionalized hydrochar obtained by blue agave leaves and HSO3, from a synthetic K2Cr¬2O7 water solution at different concentrations and pH, using batch method. For the Cr (IV) kinetic adsorption study two isotherm model were tested who have good adjustment for adsorptions with heavy metals, these models are the pseudo-first order model and the pseudo-second order model showing functionalized hydrochar are able to remove chromium (IV). Although both models had values of R2 near to 1 the pseudo-second order model its the one that shows major statistical confidence to the adjustment. For this investigation the adsorption constant of pseudo-second order model (k2) had the minor value between both models implemented in this work

Lourdes Graciela Cabrera Chavarríaa
Universidad de Guadalajara
Mexico

José Anzaldo Herández
Universidad de Guadalajara
Mexico

Rubén Sanjuán Dueñas
Universidad de Guadalajara
Mexico

Rodrigo Pérez Pimentel
Universidad de Guadalajara
Mexico

Edgar David Moreno Medranoc
Universidad de Guadalajara
Mexico

 


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