Biological treatment of toxic petroleum spent caustic in fluidized bed bioreactor using immobilized cells of Thiobacillus RAI01

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dc.contributor.authorPotumarthi, R.
dc.contributor.authorMugeraya, G.
dc.contributor.authorJetty, A.
dc.date.issued2008
dc.description.abstractIn the present studies, newly isolated Thiobacillus sp was used for the treatment of synthetic spent sulfide caustic in a laboratory-scale fluidized bed bioreactor. The sulfide oxidation was tested using Ca-alginate immobilized Thiobacillus sp. Initially, response surface methodology was applied for the optimization of four parameters to check the sulfide oxidation efficiency in batch mode. Further, reactor was operated in continuous mode for 51 days at different sulfide loading rates and retention times to test the sulfide oxidation and sulfate and thiosulfate formation. Sulfide conversions in the range of 90-98% were obtained at almost all sulfide loading rates and hydraulic retention times. However, increased loading rates resulted in lower sulfide oxidation capacity. All the experiments were conducted at constant pH of around 6 and temperature of 30±5 °C.
dc.description.statementofresponsibilityRavichandra Potumarthi, Gopal Mugeraya, Annapurna Jetty
dc.identifier.citationApplied Biochemistry and Biotechnology, 2008; 151(2-3):532-546
dc.identifier.doi10.1007/s12010-008-8229-9
dc.identifier.issn0273-2289
dc.identifier.issn1559-0291
dc.identifier.urihttp://hdl.handle.net/2440/87197
dc.language.isoen
dc.publisherHumana Press
dc.rights© Humana Press 2008
dc.source.urihttps://doi.org/10.1007/s12010-008-8229-9
dc.subjectAutotrophic bacteria
dc.subjectSulfide oxidation
dc.subjectResponse surface methodology
dc.subjectThiobacillus sp.
dc.subjectFluidized bed reactor
dc.subjectOptimization
dc.titleBiological treatment of toxic petroleum spent caustic in fluidized bed bioreactor using immobilized cells of Thiobacillus RAI01
dc.typeJournal article
pubs.publication-statusPublished

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