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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Fantinatti-Garboggini, Fabiana Durrant, Lucia R. Piubeli, Francine Grossman, Matthew J. |
| Spatial Coverage | Brazil |
| Description | Country affiliation: Brazil Author Affiliation: Piubeli F ( Department of Food Science (DCA), Food Engineering Faculty (FEA), University of Campinas (UNICAMP), Rua Monteiro Lobato, 80, Campinas, SP, CEP 13083-862, Brazil.) |
| Abstract | In this work the archaea and eubacteria community of a hypersaline produced water from the Campos Basin that had been transported and discharged to an onshore storage facility was evaluated by 16S recombinant RNA (rRNA) gene sequence analysis. The produced water had a hypersaline salt content of 10 (w/v), had a carbon oxygen demand (COD) of 4,300 mg/l and contains phenol and other aromatic compounds. The high salt and COD content and the presence of toxic phenolic compounds present a problem for conventional discharge to open seawater. In previous studies, we demonstrated that the COD and phenolic content could be largely removed under aerobic conditions, without dilution, by either addition of phenol degrading Haloarchaea or the addition of nutrients alone. In this study our goal was to characterize the microbial community to gain further insight into the persistence of reservoir community members in the produced water and the potential for bioremediation of COD and toxic contaminants. Members of the archaea community were consistent with previously identified communities from mesothermic reservoirs. All identified archaea were located within the phylum Euryarchaeota, with 98 % being identified as methanogens while 2 % could not be affiliated with any known genus. Of the identified archaea, 37 % were identified as members of the strictly carbon-dioxide-reducing genus Methanoplanus and 59 % as members of the acetoclastic genus Methanosaeta. No Haloarchaea were detected, consistent with the need to add these organisms for COD and aromatic removal. Marinobacter and Halomonas dominated the eubacterial community. The presence of these genera is consistent with the ability to stimulate COD and aromatic removal with nutrient addition. In addition, anaerobic members of the phyla Thermotogae, Firmicutes, and unclassified eubacteria were identified and may represent reservoir organisms associated with the conversion hydrocarbons to methane. |
| ISSN | 09441344 |
| Issue Number | 20 |
| Volume Number | 21 |
| e-ISSN | 16147499 |
| Journal | Environmental Science and Pollution Research |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2014-10-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Archaea Genetics Bacteria Petroleum Analysis Phylogeny Salinity Waste Water Microbiology Water Microbiology Biodegradation, Environmental Biological Oxygen Demand Analysis Brazil Molecular Sequence Data Rna, Ribosomal, 16s Sequence Analysis, Dna Temperature Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine |
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