Biomining of iron-containing nanoparticles from coal tailings

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dc.citation.volumev. 103pt_BR
dc.contributor.authorMaass, Danielle [UNIFESP]
dc.contributor.authorMachado, Morgana de Medeiros
dc.contributor.authorRovaris, Beatriz Cesa
dc.contributor.authorBernardin, Adriano Michael
dc.contributor.authorOliveira, Débora de
dc.contributor.authorHotza, Dachamir
dc.contributor.authorLatteshttp://lattes.cnpq.br/3431482044015696pt_BR
dc.coverage.spatialAlemanhapt_BR
dc.date.accessioned2021-04-16T11:21:54Z
dc.date.available2021-04-16T11:21:54Z
dc.date.issued2019-07-10
dc.description.abstractSulfur minerals originating from coal mining represent an important environmental problem. Turning these wastes into value added by-products can be an interesting alternative. Biotransformation of coal tailings into iron-containing nanoparticles using Rhodococcus erythropolis ATCC 4277 free cells was studied. The influence of culture conditions (stirring rate, biomass concentration, and coal tailings ratio) in the particle size was investigated using a 23 full factorial design. Statistical analysis revealed that higher concentrations of biomass produced larger sized particles. Conversely, a more intense stirring rate of the culture medium and a higher coal tailings ratio (% w/w) led to the synthesis of smaller particles. Thus, the culture conditions that produced smaller particles (< 50 nm) were 0.5 abs of normalized biomass concentration, 150 rpm of stirring rate, and 2.5% w/w of coal tailings ratio. Composition analyses showed that the biosynthesized nanoparticles are formed by iron sulfate. Conversion ratio of the coal tailings into iron-containing nanoparticles reached 19%. The proposed biosynthesis process, using R. erythropolis ATCC 4277 free cells, seems to be a new and environmentally friendly alternative for sulfur minerals reuse.pt_BR
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)pt_BR
dc.description.sponsorshipID#2019/07659-4pt_BR
dc.format.extent7231–7240pt_BR
dc.identifierhttps://link.springer.com/article/10.1007/s00253-019-10001-2#:~:text=The%20biomining%20of%20iron%20from%20coal%20tailings%20by%20the%20bacterium,transform%20it%20into%20iron%20NPs.pt_BR
dc.identifier.doi10.1007/s00253-019-10001-2pt_BR
dc.identifier.issn0175-7598pt_BR
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/60891
dc.languageengpt_BR
dc.publisherSpringer Naturept_BR
dc.relation.ispartofApplied Microbiology and Biotechnologypt_BR
dc.rightsinfo:eu-repo/semantics/openAccesspt_BR
dc.subjectBiominingpt_BR
dc.subjectCoal tailingspt_BR
dc.subjectIron sulfate nanoparticlept_BR
dc.subjectRhodococcus erythropolispt_BR
dc.subjectSulfur mineralspt_BR
dc.titleBiomining of iron-containing nanoparticles from coal tailingspt_BR
dc.title.alternativeBiomining of iron-containing nanoparticles from coal tailingspt_BR
dc.typeinfo:eu-repo/semantics/articlept_BR
unifesp.assessoresproreitoriasNão se aplicapt_BR
unifesp.campusInstituto de Ciência e Tecnologia (ICT)pt_BR
unifesp.departamentoCiência e Tecnologiapt_BR
unifesp.extensaoNão se aplicapt_BR
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