Waste products from industrial operations, such as yohimbe bark, grape stalks, cork and olive stones were investigated for the removal of Cr(VI) from aqueous solutions. Equilibrium batch experiments at room temperature were performed. Metal uptake showed a pH-dependent profile and optimum uptake at initial pH between 2.0–3.0. Slight influence of NaCl on metal uptake was observed. The sorption data fitted well to the Langmuir model within the concentration range studied. Grape stalks proved to be the most efficient sorbent followed by yohimbe bark, cork and olive stones.
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Thanks are due to Mrs Rosmi Munté and Katrien D'Hooghe for their help in the experimental work. This work has been supported by Ministerio de Ciencia y Tecnologia Spain, project PPQ2002-04131-C02-01 and PPQ2002-04131-C02-02.
Author information Authors and AffiliationsChemical Engineering Dept., Universitat de Girona, Avda Lluis Santaló, 17003 , Girona, Spain
N. Fiol & I. Villaescusa
Chemical Engineering Dept., E.T.S.E.I.B., Universitat Politècnica de Catalunya, Avda Diagonal 647, 08028, Barcelona, Spain
M. Martínez & N. Miralles
Applied Mathematics Dept., Universitat de Girona, Avda Lluis Santaló, 17003 , Girona, Spain
J. Poch & J. Serarols
Correspondence to N. Fiol.
Additional informationN. Fiol is the recipient of the 2002 ACE Environmental Chemistry Award
About this article Cite this articleFiol, N., Villaescusa, I., Martínez, M. et al. Biosorption of Cr(VI) using low cost sorbents. Environ Chem Lett 1, 135–139 (2003). https://doi.org/10.1007/s10311-003-0027-6
Accepted: 07 April 2003
Published: 20 May 2003
Issue Date: August 2003
DOI: https://doi.org/10.1007/s10311-003-0027-6
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