Biosorption of chromium (VI) from aqueous solutions by the husk of Bengal gram (Cicer arientinum)

The potential to remove Cr (VI) from aqueous solutions through biosorption using the husk of Bengal gram (Cicer arientinum), was investigated in batch experiments. The results showed removal of 99.9% of chromium in the 10 mgl-1 chromium solution, the biomass required at saturation was 1 g mg-1. Kine...

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Autores principales:	Ahalya,N, Kanamadi,R.D, Ramachandra,T.V
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso 2005
Materias:	agro-wastes Bengal gram husk (bgh) Cicer arientinum chromium biosorption isotherms fourier transform infrared spectroscopy (FTIR)
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582005000300005
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spelling	oai:scielo:S0717-345820050003000052006-01-26Biosorption of chromium (VI) from aqueous solutions by the husk of Bengal gram (Cicer arientinum)Ahalya,NKanamadi,R.DRamachandra,T.V agro-wastes Bengal gram husk (bgh) Cicer arientinum chromium biosorption isotherms fourier transform infrared spectroscopy (FTIR) The potential to remove Cr (VI) from aqueous solutions through biosorption using the husk of Bengal gram (Cicer arientinum), was investigated in batch experiments. The results showed removal of 99.9% of chromium in the 10 mgl-1 chromium solution, the biomass required at saturation was 1 g mg-1. Kinetic experiments revealed that the dilute chromium solutions reached equilibrium within 180 min. The biosorptive capacity of the (bgh) was dependent on the pH of the chromium solution, with pH 2 being optimal. The adsorption data fit well with the Langmuir and Freundlich isotherm models. The adsorption capacity calculated from the Langmuir isotherm was 91.64 mg Cr (VI)/g at pH 2. The adsorption capacity increased with increase in agitation speed and an optimum was achieved at 120 rpm. The biosorption of Cr (VI) was studied by Fourier transform infrared spectroscopy (FTIR), which suggested that the presence of Cr (VI) ions in the biomass affects the bands corresponding to hydroxyl and carboxyl groups. Comprehensive characterisation of parameters indicates bgh to be an excellent material for biosorption of Cr (VI) to treat wastewaters containing low concentration of the metalinfo:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.8 n.3 20052005-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582005000300005en
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	agro-wastes Bengal gram husk (bgh) Cicer arientinum chromium biosorption isotherms fourier transform infrared spectroscopy (FTIR)
spellingShingle	agro-wastes Bengal gram husk (bgh) Cicer arientinum chromium biosorption isotherms fourier transform infrared spectroscopy (FTIR) Ahalya,N Kanamadi,R.D Ramachandra,T.V Biosorption of chromium (VI) from aqueous solutions by the husk of Bengal gram (Cicer arientinum)
description	The potential to remove Cr (VI) from aqueous solutions through biosorption using the husk of Bengal gram (Cicer arientinum), was investigated in batch experiments. The results showed removal of 99.9% of chromium in the 10 mgl-1 chromium solution, the biomass required at saturation was 1 g mg-1. Kinetic experiments revealed that the dilute chromium solutions reached equilibrium within 180 min. The biosorptive capacity of the (bgh) was dependent on the pH of the chromium solution, with pH 2 being optimal. The adsorption data fit well with the Langmuir and Freundlich isotherm models. The adsorption capacity calculated from the Langmuir isotherm was 91.64 mg Cr (VI)/g at pH 2. The adsorption capacity increased with increase in agitation speed and an optimum was achieved at 120 rpm. The biosorption of Cr (VI) was studied by Fourier transform infrared spectroscopy (FTIR), which suggested that the presence of Cr (VI) ions in the biomass affects the bands corresponding to hydroxyl and carboxyl groups. Comprehensive characterisation of parameters indicates bgh to be an excellent material for biosorption of Cr (VI) to treat wastewaters containing low concentration of the metal
author	Ahalya,N Kanamadi,R.D Ramachandra,T.V
author_facet	Ahalya,N Kanamadi,R.D Ramachandra,T.V
author_sort	Ahalya,N
title	Biosorption of chromium (VI) from aqueous solutions by the husk of Bengal gram (Cicer arientinum)
title_short	Biosorption of chromium (VI) from aqueous solutions by the husk of Bengal gram (Cicer arientinum)
title_full	Biosorption of chromium (VI) from aqueous solutions by the husk of Bengal gram (Cicer arientinum)
title_fullStr	Biosorption of chromium (VI) from aqueous solutions by the husk of Bengal gram (Cicer arientinum)
title_full_unstemmed	Biosorption of chromium (VI) from aqueous solutions by the husk of Bengal gram (Cicer arientinum)
title_sort	biosorption of chromium (vi) from aqueous solutions by the husk of bengal gram (cicer arientinum)
publisher	Pontificia Universidad Católica de Valparaíso
publishDate	2005
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582005000300005
work_keys_str_mv	AT ahalyan biosorptionofchromiumvifromaqueoussolutionsbythehuskofbengalgramcicerarientinum AT kanamadird biosorptionofchromiumvifromaqueoussolutionsbythehuskofbengalgramcicerarientinum AT ramachandratv biosorptionofchromiumvifromaqueoussolutionsbythehuskofbengalgramcicerarientinum
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Biosorption of chromium (VI) from aqueous solutions by the husk of Bengal gram (Cicer arientinum)

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