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dc.contributor.authorPérez, Rosa María
dc.contributor.authorCabrera Revuelta, Gema
dc.contributor.authorGómez Montes de Oca, José Manuel
dc.contributor.authorCantero, Domingo
dc.contributor.otherIngeniería Química y Tecnología de Alimentosen_US
dc.date.accessioned2014-05-23T09:52:32Z
dc.date.available2014-05-23T09:52:32Z
dc.date.issued2010-01-01T00:00:00Z
dc.identifier.issn0304-3894
dc.identifier.urihttp://hdl.handle.net/10498/16311
dc.description.abstractThe precipitation of chromium(III), copper(II), manganese(II) and zinc(II) by biogenic hydrogen sulfide generated by sulfate-reducing bacteria, Desulfovibrio sp., and the degradation of total petroleum hydrocarbons (TPH) in the presence of heavy metal by Pseudomonas aeruginosa AT18 have been carried out. An anaerobic stirred tank reactor was used to generate hydrogen sulfide with Desulfovibrio sp. culture and the precipitation of more than 95% of each metal was achieved in 24 h (metal solutions contained: 60, 49, 50 and 80mgL−1 of chromium, copper, manganese and zinc sulfates). A stirred tank reactor with P. aeruginosa AT18, in the presence of the heavy metal solution and 2% (v/v) of petroleum, led to the degradation of 60% of the total petroleum hydrocarbons and the removal of Cr(III) 99%, Cu(II) 93%, Zn(II) 46% and Mn(II) 88% in the medium through biosorption phenomena. These results enabled the development of an integrated system in which the two processes were combined. The overall aim of the study was achieved, with 84% of TPH degraded and all of the metals completely removed. Work is currently underway aimed at improving this system (decrease in operation time, culture of P. aeruginosa in anaerobic conditions) in an effort to apply this process in the bioremediation of natural media contaminated with heavy metals and petroleum.en_US
dc.formatapplication/pdf
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceJournal of Hazardous Materials - 2010 Volumen 182, n. 1–3 pp. 896–902en_US
dc.subjectPseudomonas aeruginosaen_US
dc.subjectDesulfovibrio spen_US
dc.subjectBiodegradationen_US
dc.subjectHeavy metalen_US
dc.subjectPetroleumen_US
dc.titleCombined strategy for the precipitation of heavy metals and biodegradation of petroleum in industrial wastewatersen_US
dc.typeinfo:eu-repo/semantics/articleen_US
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.identifier.doi10.1016/j.jhazmat.2010.07.003


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