Biodegradation studies on fatty amines used for reverse flotation of iron ore.

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dc.contributor.authorAraujo, Danielle Marques de
dc.contributor.authorYoshida, Maria Irene
dc.contributor.authorTakahashi, Jacqueline Aparecida
dc.contributor.authorCarvalho, Cornélio de Freitas
dc.contributor.authorStapelfeldt, Frank
dc.date.accessioned2012-10-03T15:25:40Z
dc.date.available2012-10-03T15:25:40Z
dc.date.issued2010
dc.description.abstractBacteria present in effluents from the process of iron ore flotation were isolated and identified in an attempt to identify the microorganisms responsible for fatty amine degradation.Water samples collected at the tailings dam led to the identification of the bacterial species Serratia marcescens as the microorganism responsible for degradation, while in laboratory flotation conditions, a strain of Enterobacter cloacae was shown to be the biodegrading agent. Both S. marcescens and E. cloacae are Gram-negative, non-sporulated, mobile and facultative anaerobic bacteria. Monitoring of the effluent had shown that after 5 days, around 34% of amine was already consumed, increasing to 75% after 10 days; these data are important for testing the reuse of the fatty amines contained in effluents. Biodegradation experiments carried out with S. marcescens revealed the significant role of temperature and concentration on the biodegradation rate of the etheramine EDA 3B. For the concentration of 10 mg L_1, amine biodegradation rates are very close at all temperatures. However, as amine concentration increases, the influence of temperature can be better observed, mainly for concentrations of 40 and 60 mg L_1. This isolate will be potentially useful in biotreatment of wastewaters and bioremediation of contaminated soils.pt_BR
dc.identifier.citationARAUJO, D. M. et al. Biodegradation studies on fatty amines used for reverse flotation of iron ore. International Biodeterioration & Biodegradation, v. 64, n. 2, p. 151-155, mar. 2010. Disponível em: <https://www.sciencedirect.com/science/article/pii/S0964830510000077>. Acesso em: 03 out. 2012pt_BR
dc.identifier.issn09648305
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/1524
dc.language.isoen_USpt_BR
dc.rights.licenseO periódico International Biodeterioration and Biodegradation concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença 3313100017124.
dc.subjectSerratia marcescenspt_BR
dc.subjectFlotationpt_BR
dc.subjectIron orept_BR
dc.subjectFatty aminept_BR
dc.subjectBiodegradationpt_BR
dc.titleBiodegradation studies on fatty amines used for reverse flotation of iron ore.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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