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Información tecnológica

On-line version ISSN 0718-0764

Abstract

ACOSTA, Ismael; MOCTEZUMA-ZARATE, María de Guadalupe; CARDENAS, Juan F  and  GUTIERREZ, Conrado. Biosorption of Cadmium (II) in Aqueous Solutions by Fungal Biomass. Inf. tecnol. [online]. 2007, vol.18, n.1, pp.09-14. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642007000100003.

The biosorption of dissolved Cadmium (II) using cellular biomass of 15 fungi, using a dithizone colorimetric method, was determined. The Mucor rouxii IM-80 biomass was more efficient in removing Cadmium (II) from solution (8.2 mg/g), followed by the M. rouxii mutant (7.1 mg/g), Aspergillus flavus I (5.9 mg/g) and Helminthosporium sp (5.4 mg/g) biomasses. The highest biosorption for M. rouxii IM-80 was at pH 5.0-6.0, at 28oC for 40 h employing 1.0 mg/200mL of Cadmium (II) as initial concentration, and 80 mg/200 mL of fungal biomass. It was concluded that some fungal biomass efficiently removed Cadmium (II) from solution and could be used for decontamination of aquatic habitats polluted with this metal

Keywords : Biosorption; Cadmium (II); biomass; fungi; wastewater.

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