Biosorptive removal of Cd and Zn from liquid streams with a Rhodococcus opacus strain

Tatiana Gisset P. Vásquez; Ana Elisa C. Botero; Luciana Maria S. de Mesquita; Maurício Leonardo Torem

doi:10.1016/j.mineng.2007.03.014

Biosorptive removal of Cd and Zn from liquid streams with a Rhodococcus opacus strain

Tatiana Gisset P. Vásquez, Ana Elisa C. Botero, Luciana Maria S. de Mesquita, Maurício Leonardo Torem

Research output: Contribution to journal › Article in an indexed scientific journal › peer-review

45 Scopus citations

Abstract

The biosorption abilities of Rhodococcus opacus were studied for cadmium and zinc removal for liquid aqueous streams. The influence of pH, initial metal concentration and time removal were evaluated on the biosorption studies, in a batch scale basis. The Cd²⁺ and Zn²⁺ species uptake capacity by R. opacus has been also compared using Langmuir and Freundlich models. At pH 7.0 and 26 °C C, Cd²⁺ removal achieved a value around 60% from an initial concentration of 15 ppm. On the other hand, Zn removal achieved a value around 88% from an initial concentration of 5 ppm. Kinetics studies revealed that the biosorption process followed a pseudo-second order model for the two metal species (Cd²⁺ and Zn²⁺) and the kinetic constants were 3.90 and 3.37 g mg^-1 min^-1, for an initial concentration of 15 and 5 ppm for cadmium and zinc, respectively. The results showed that the R. opacus is a potential engineering biosorbent for environmental and extractive metallurgy sustainable applications.

Original language	English
Pages (from-to)	939-944
Number of pages	6
Journal	Minerals Engineering
Volume	20
Issue number	9 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.mineng.2007.03.014
State	Published - Aug 2007
Externally published	Yes

Bibliographical note

Funding Information:
The authors acknowledge the financial support by CNPq, CAPES and FAPERJ.

Keywords

Adsorption
Biosorption
Cadmium
Rhodococcus opacus
Zinc

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@article{4681730480234d8a99198056e929ecb8,

title = "Biosorptive removal of Cd and Zn from liquid streams with a Rhodococcus opacus strain",

abstract = "The biosorption abilities of Rhodococcus opacus were studied for cadmium and zinc removal for liquid aqueous streams. The influence of pH, initial metal concentration and time removal were evaluated on the biosorption studies, in a batch scale basis. The Cd2+ and Zn2+ species uptake capacity by R. opacus has been also compared using Langmuir and Freundlich models. At pH 7.0 and 26 °C C, Cd2+ removal achieved a value around 60% from an initial concentration of 15 ppm. On the other hand, Zn removal achieved a value around 88% from an initial concentration of 5 ppm. Kinetics studies revealed that the biosorption process followed a pseudo-second order model for the two metal species (Cd2+ and Zn2+) and the kinetic constants were 3.90 and 3.37 g mg-1 min-1, for an initial concentration of 15 and 5 ppm for cadmium and zinc, respectively. The results showed that the R. opacus is a potential engineering biosorbent for environmental and extractive metallurgy sustainable applications.",

keywords = "Adsorption, Biosorption, Cadmium, Rhodococcus opacus, Zinc",

author = "V{\'a}squez, {Tatiana Gisset P.} and Botero, {Ana Elisa C.} and {de Mesquita}, {Luciana Maria S.} and Torem, {Maur{\'i}cio Leonardo}",

note = "Funding Information: The authors acknowledge the financial support by CNPq, CAPES and FAPERJ.",

year = "2007",

month = aug,

doi = "10.1016/j.mineng.2007.03.014",

language = "Ingl{\'e}s",

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TY - JOUR

T1 - Biosorptive removal of Cd and Zn from liquid streams with a Rhodococcus opacus strain

AU - Vásquez, Tatiana Gisset P.

AU - Botero, Ana Elisa C.

AU - de Mesquita, Luciana Maria S.

AU - Torem, Maurício Leonardo

N1 - Funding Information: The authors acknowledge the financial support by CNPq, CAPES and FAPERJ.

PY - 2007/8

Y1 - 2007/8

N2 - The biosorption abilities of Rhodococcus opacus were studied for cadmium and zinc removal for liquid aqueous streams. The influence of pH, initial metal concentration and time removal were evaluated on the biosorption studies, in a batch scale basis. The Cd2+ and Zn2+ species uptake capacity by R. opacus has been also compared using Langmuir and Freundlich models. At pH 7.0 and 26 °C C, Cd2+ removal achieved a value around 60% from an initial concentration of 15 ppm. On the other hand, Zn removal achieved a value around 88% from an initial concentration of 5 ppm. Kinetics studies revealed that the biosorption process followed a pseudo-second order model for the two metal species (Cd2+ and Zn2+) and the kinetic constants were 3.90 and 3.37 g mg-1 min-1, for an initial concentration of 15 and 5 ppm for cadmium and zinc, respectively. The results showed that the R. opacus is a potential engineering biosorbent for environmental and extractive metallurgy sustainable applications.

AB - The biosorption abilities of Rhodococcus opacus were studied for cadmium and zinc removal for liquid aqueous streams. The influence of pH, initial metal concentration and time removal were evaluated on the biosorption studies, in a batch scale basis. The Cd2+ and Zn2+ species uptake capacity by R. opacus has been also compared using Langmuir and Freundlich models. At pH 7.0 and 26 °C C, Cd2+ removal achieved a value around 60% from an initial concentration of 15 ppm. On the other hand, Zn removal achieved a value around 88% from an initial concentration of 5 ppm. Kinetics studies revealed that the biosorption process followed a pseudo-second order model for the two metal species (Cd2+ and Zn2+) and the kinetic constants were 3.90 and 3.37 g mg-1 min-1, for an initial concentration of 15 and 5 ppm for cadmium and zinc, respectively. The results showed that the R. opacus is a potential engineering biosorbent for environmental and extractive metallurgy sustainable applications.

KW - Adsorption

KW - Biosorption

KW - Cadmium

KW - Rhodococcus opacus

KW - Zinc

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U2 - 10.1016/j.mineng.2007.03.014

DO - 10.1016/j.mineng.2007.03.014

M3 - Artículo en revista científica indexada

AN - SCOPUS:34447253087

SN - 0892-6875

VL - 20

SP - 939

EP - 944

JO - Minerals Engineering

JF - Minerals Engineering

IS - 9 SPEC. ISS.

ER -

Biosorptive removal of Cd and Zn from liquid streams with a Rhodococcus opacus strain

Abstract

Bibliographical note

Keywords

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