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Shewanella putrefaciens for the remediation of Au3+, Co2+ and Fe3+ metal ions from aqueous systems

Lookup NU author(s): Jeet Varia, Dr Asfaw Zegeye, Professor Sudipta Roy, Sani Yahaya, Professor Steve Bull

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Abstract

This study reports the investigation and application of gamma proteobacteria of the Shewanella genus, Shewanella putrefaciens CN32 bacterium, applied as a prototypical dissimilative bacterium for the remediation of Au3+, Co2+ and Fe3+ ions in aqueous systems. Green chemistry principles were applied to the remediation process, i.e. no chemicals are used to treat the metal ion solutions and process where carried out at ambient temperatures. Some emphasis upon the possibility of metal recovery as metallic nanopartides (NPs) using bacterial cells was also given. Batch assays were carried out with de-oxygenated solutions containing metal ions of relatively low concentrations (<300 mg/L) and low pH (


Publication metadata

Author(s): Varia J, Zegeye A, Roy S, Yahaya S, Bull S

Publication type: Article

Publication status: Published

Journal: Biochemical Engineering Journal

Year: 2014

Volume: 85

Pages: 101-109

Print publication date: 15/04/2014

ISSN (print): 1369-703X

ISSN (electronic): 1873-295X

Publisher: Elsevier

URL: http://dx.doi.org/10.1016/j.bej.2014.02.002

DOI: 10.1016/j.bej.2014.02.002


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