A New Application for Klebsiella oxytoca in Bioremediation: Treatment of Manganese-Laden Wastewaters

Bioremediation is a method of removing manganese from wastewaters, and many bacterial species with a role in manganese bioremediation have been identified over several decades. Using K medium with Mn(II), a bacterial consortium was obtained from water sample collected from a mine drainage in southea...

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Bibliographic Details
Published in:Water, air, and soil pollution air, and soil pollution, 2018-01, Vol.229 (1), p.1-8, Article 19
Main Authors: Barboza, Natália R., Cordeiro, Mônica M., Santos, Pricila A., Queiroz, Pollyana S., Leão, Versiane A., Guerra-Sá, Renata
Format: Article
Language:English
Subjects:
Atmospheric Protection/Air Quality Control/Air Pollution
Bacteria
Bioremediation
Climate Change/Climate Change Impacts
Consortia
Earth and Environmental Science
Ecosystem components
Environment
Environmental monitoring
Hydrogeology
Identification
Klebsiella
Manganese
Manganese sulfate
Mine drainage
Mine water
Oxidation
pH effects
Phylogeny
Removal
RNA
rRNA 16S
Sewage treatment
Soil Science & Conservation
Sulfates
Water analysis
Water pollution
Water Quality/Water Pollution
Water sampling
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Summary:Bioremediation is a method of removing manganese from wastewaters, and many bacterial species with a role in manganese bioremediation have been identified over several decades. Using K medium with Mn(II), a bacterial consortium was obtained from water sample collected from a mine drainage in southeastern Brazil (Minas Gerais, Brazil), and the isolates were identified as Klebsiella oxytoca using both biochemical and 16S rRNA phylogenetic analysis. Among such isolates, sample SA8 was tested for its manganese removal capability during a week-long experiment in K medium amended with manganese sulfate. Growth of isolate SA8 produced an increase in pH concomitantly to Mn(II) removal, which was not observed in the abiotic control. Manganese removal occurred through oxidation as confirmed by reaction with leucoberbelin blue, and therefore, a new potential application for K. oxytoca in mine water bioremediation is proposed.
ISSN:0049-6979
1573-2932
DOI:10.1007/s11270-017-3651-7