Effect of salinity in heterotrophic nitrification/aerobic denitrification performed by acclimated microbiota from oil-produced water biological treatment system

dc.creatorSilva, Lívia Carneiro Fidélis
dc.creatorLima, Helena Santiago
dc.creatorSartoratto, Adilson
dc.creatorSousa, Maira Paula de
dc.creatorTorres, Ana Paula Rodrigues
dc.creatorSouza, Rodrigo Suhett de
dc.creatorPaula, Sérgio Oliveira de
dc.creatorOliveira, Valéria Maia de
dc.creatorSilva, Cynthia Canêdo da
dc.date2018-09-10T17:11:11Z
dc.date2018-09-10T17:11:11Z
dc.date2018-03-21
dc.date.accessioned2023-09-27T21:26:53Z
dc.date.available2023-09-27T21:26:53Z
dc.identifier0964-8305
dc.identifierhttps://doi.org/10.1016/j.ibiod.2018.03.009
dc.identifierhttp://www.locus.ufv.br/handle/123456789/21718
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8960778
dc.descriptionMixed cultures salt acclimated showed high efficiency in heterotrophic nitrification/aerobic denitrification process in hypersaline conditions. They were able to remove 80% of ammonium in Heterotrophic Nitrification Medium (HNM) with 12 and 14% of salt. Above these salinity, the process still had 40% ammonium removal up to 20% of salt. Chromatography analysis validated the occurrence of the heterotrophic nitrification/aerobic denitrification process in all studied salinities (6%–20% of NaCl). However, with increasing salinity, the N2 production was smaller and took longer than the unsalted control. Microbial diversity analysis of mixed cultures showed that different groups of nitrifying microorganisms were involved in ammonium removal, including heterotrophic nitrifying/aerobic denitrifying genera such as Pseudomonas, Paracoccus, Bacillus, Halomonas, Acinetobacter and Klebsiella. In addition, this analysis also revealed that the acclimation process allowed the adaptation of the microorganisms to high saline conditions and ammonium removal up to 20% of salt. This work showed that heterotrophic nitrification/aerobic denitrification process could occur in high salinity after microbiota acclimation step, and these mixed acclimated cultures have a potential for application in hypersaline effluent treatment.
dc.formatpdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherInternational Biodeterioration & Biodegradation
dc.relationVolume 130, Pages 1-7, May 2018
dc.rightsElsevier Ltd
dc.subjectOil terminal
dc.subjectAmmonium removal
dc.subject16S rRNA gene sequencing
dc.subjectGas chromatography
dc.subjectN2 gaseous
dc.titleEffect of salinity in heterotrophic nitrification/aerobic denitrification performed by acclimated microbiota from oil-produced water biological treatment system
dc.typeArtigo


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