Copper biosorption by Rhodococcus erythropolis isolated from the Sossego Mine – PA – Brazil

Marcela dos Passos Galluzzi Baltazar; Louise Hase Gracioso; Ingrid Regina Avanzi; Bruno Karolski; Jorge Alberto Soares Tenório; Claudio Augusto Oller do Nascimento; Elen Aquino Perpetuo

Journal of Materials Research and Technology (Jan 2019)

Copper biosorption by Rhodococcus erythropolis isolated from the Sossego Mine – PA – Brazil

Marcela dos Passos Galluzzi Baltazar,
Louise Hase Gracioso,
Ingrid Regina Avanzi,
Bruno Karolski,
Jorge Alberto Soares Tenório,
Claudio Augusto Oller do Nascimento,
Elen Aquino Perpetuo

Affiliations

Marcela dos Passos Galluzzi Baltazar: Chemical Engineering Department, University of São Paulo, POLI-USP, Rua do Lago, 250, São Paulo, SP, Brazil; Environmental Research and Education Center, University of São Paulo, CEPEMA-POLI-USP, Rodovia Cônego Domênico Rangoni, 270 km, Cubatão, SP, Brazil; Corresponding author.
Louise Hase Gracioso: Environmental Research and Education Center, University of São Paulo, CEPEMA-POLI-USP, Rodovia Cônego Domênico Rangoni, 270 km, Cubatão, SP, Brazil
Ingrid Regina Avanzi: Environmental Research and Education Center, University of São Paulo, CEPEMA-POLI-USP, Rodovia Cônego Domênico Rangoni, 270 km, Cubatão, SP, Brazil
Bruno Karolski: Environmental Research and Education Center, University of São Paulo, CEPEMA-POLI-USP, Rodovia Cônego Domênico Rangoni, 270 km, Cubatão, SP, Brazil
Jorge Alberto Soares Tenório: Chemical Engineering Department, University of São Paulo, POLI-USP, Rua do Lago, 250, São Paulo, SP, Brazil; Environmental Research and Education Center, University of São Paulo, CEPEMA-POLI-USP, Rodovia Cônego Domênico Rangoni, 270 km, Cubatão, SP, Brazil
Claudio Augusto Oller do Nascimento: Chemical Engineering Department, University of São Paulo, POLI-USP, Rua do Lago, 250, São Paulo, SP, Brazil; Environmental Research and Education Center, University of São Paulo, CEPEMA-POLI-USP, Rodovia Cônego Domênico Rangoni, 270 km, Cubatão, SP, Brazil
Elen Aquino Perpetuo: Environmental Research and Education Center, University of São Paulo, CEPEMA-POLI-USP, Rodovia Cônego Domênico Rangoni, 270 km, Cubatão, SP, Brazil; Department of Marine Sciences, Federal University of São Paulo, Imar-Unifesp, Avenida Alm. Saldanha da Gama, 89, Santos, São Paulo, Brazil

Journal volume & issue: Vol. 8, no. 1
pp. 475 – 483

Abstract

Read online

This work evaluates the copper biosorption capacity (Cu2+) by the biomass of a bacterium strain identified as Rhodococcus erythropolis isolated from copper mining environmental samples. The copper uptake was analyzed under different influences of pH, biomass concentration, and metal concentration. The total copper uptake was measured using ICP-OES and the metal adsorption capacity calculated by construction of Langmuir and Freundlich isotherm models. R. erythropolis biomass is a potential material to treat and to remove copper from low concentration of aqueous contaminated effluents reaching a total absorption of 68.03 mg of Cu2+ per gram of biomass according to the Langmuir model at pH = 6, the optimal pH for maximum copper uptake. Our results showed a unique absorption rate when compared to other bacteria belonging to the Rhodococcus genus or even when compared to other bacteria genera able to adsorb metal from aqueous environments. Keywords: Metal biosorption, Bioprocess, Hydrometallurgy, Biomass, Rhodococcus

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

About the journal