Biosorption of Chromium (VI) from Aqueous Solutions onto Fungal Biomass

The biosorption of chromium (VI) on eighteen different natural biosorbents: Natural sediment, chitosan, chitin, Aspergillus flavus I-V, Aspergillus fumigatus I-ll, Helmintosporium sp, Cladosporium sp, Mucor rouxii mutant, M. rouxii IM-80, Mucor sp-I and 2, Candida albicans and Cryptococcus neoforman...

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Detalles Bibliográficos
Autores principales: R., Ismael Acosta, Rodríguez, Xöchitl, Gutiérrez, Conrado, Moctezuma, Ma. de Guadalupe
Formato: Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2004
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2267066/
https://www.ncbi.nlm.nih.gov/pubmed/18365065
http://dx.doi.org/10.1155/S1565363304000019
Descripción
Sumario:The biosorption of chromium (VI) on eighteen different natural biosorbents: Natural sediment, chitosan, chitin, Aspergillus flavus I-V, Aspergillus fumigatus I-ll, Helmintosporium sp, Cladosporium sp, Mucor rouxii mutant, M. rouxii IM-80, Mucor sp-I and 2, Candida albicans and Cryptococcus neoformans was studied in this work. It was found that the biomass of C. neoformans, natural sediment, Helmintosporium sp and chitosan was more efficient to remove chromium (VI) (determined spectrophotometrically at 540 nm using diphenylcarbazide as the complexing agent) achieving the. following percentage of removals: 98%, 98% and 63%, respectively. The highest adsorption was obtained with C. neoformans and Helmintosporium sp at pH 2.0 and 4.0 + 0.2, respectively, at 28(∘)C after 24 hours of incubation, with 0.2 mg/L of cellular biomass.

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