Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5090 | Biochemical Engineering Journal | 2006 | 5 Pages |
Abstract
Dead Sargassum sp. as a biosorbent for Pb2+ ions from aqueous solutions was studied. Kinetics and equilibrium of Pb2+ biosorption were evaluated. The biosorption process used in this work followed a second-order kinetics and was not influenced by temperature, at least within 298–328 K. The equilibrium of biosorption was well described by Langmuir isotherm and the maximum Pb2+ uptake capacity (1.26 mmol g−1) is higher than those reported in the literature, for different sorbents. More than 95% of sorbed Pb2+cations could be removed by desorption with a 0.10 mol l−1 Na2EDTA solution at 298 K.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Bioengineering
Authors
Bruno L. Martins, Claudio C.V. Cruz, Aderval S. Luna, Cristiane A. Henriques,