期刊
BIOCHEMICAL ENGINEERING JOURNAL
卷 85, 期 -, 页码 101-109出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.bej.2014.02.002
关键词
Biosorption; Bioremediation; Gold; Cobalt; Iron; Nanoparticle; Shewanella putrefaciens
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 (
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