Titre du document / Document title

The removal of gold from solution by the viable microbial biomass Phomas sp.

Auteur(s) / Author(s)

ANTUNES A. P. M. ⁽¹⁾ ; DUNCAN J. R. ⁽¹⁾ ; WATKINS G. M. ⁽²⁾ ; MACLEAR A. ⁽¹⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ Department of Biochemistry and Microbiology, Rhodes University, P.O. Box 94, Grahamstown, 6140, AFRIQUE DU SUD
⁽²⁾ Department of Chemistry Rhodes University, P.O. 94, Grahamstown, 6140, AFRIQUE DU SUD

Résumé / Abstract

Biomass of natural origin has been accepted as an alternative economical bioremediation agent for metal removal. The present study investigates the removal of gold(III) from dilute solutions utilising a purified fungal culture of Phoma sp. Optimal conditions in batch studies with biomass and gold concentrations of 3 mg/mL and 1 mg/L respectively, at pH 5, demonstrated a removal of 90% of gold(III) from solution at 25°C. Electron microscopy indicated that adsorption and/or absorption sites for gold by the fungi were not colonised. The presence of gold in the fungi was confirmed by Energy Dispersive X-ray (EDX) spectroscopy analysis.

Revue / Journal Title

Resource and environmental biotechnology    ISSN  1358-2283 

Source / Source

2002, vol. 3, n^o4, pp. 219-228 [10 page(s) (article)] (6 ref.)

Langue / Language

Anglais

Editeur / Publisher

AB, Oxon, ROYAUME-UNI  (1995) (Revue)

Mots-clés d'auteur / Author Keywords

Batch studies

;

biosorption

;

EDX analysis

;

electron microscopy

;

fungi

;

gold

;

Phoma sp

;

Localisation / Location

INIST-CNRS, Cote INIST : 21838, 35400011939593.0040