Bromate reduction by denitrifying bacteria.

Applied and Environmental Microbiology
W HijnenD van der Kooij

Abstract

In the presence of bromide, ozonation as applied in water treatment results in the formation of bromate, an ion with carcinogenic properties. The reduction of bromate by mixed bacterial populations as well as pure cultures was studied under laboratory conditions. Bromate was reduced to bromide by a mixed bacterial population with and without a preceding nitrate reduction step in an anaerobically incubated medium with ethanol as the energy and carbon source at 20 and 25 deg C. The predominating bacteria isolated from the batches showing bromate reduction were identified as Pseudomonas spp. Strains of Pseudomonas fluorescens reduced BrO(inf3)(sup-) to Br(sup-) but at a much lower rate than the mixed bacterial population did. Nitrate is a preferred electron acceptor for the bromate-reducing bacteria. Bromate reduction did not occur in the presence of NO(inf3)(sup-), and the rate of bromate reduction was at least 100 times lower than the rate of nitrate reduction. Bromate was completely converted to Br(sup-), indicating that intermediates, e.g., BrO(inf2)(sup-), did not accumulate during bromate reduction.

References

Jan 1, 1985·Applied and Environmental Microbiology·D J Reasoner, E E Geldreich
May 1, 1966·Journal of General Microbiology·R Y StanierM Doudoroff
Aug 1, 1991·Applied and Environmental Microbiology·A MalmqvistL Gunnarsson
Jan 1, 1992·Applied and Environmental Microbiology·N A SteinbergR S Oremland
Dec 1, 1992·Applied and Environmental Microbiology·L LortieK J Cheng
Oct 1, 1972·Plant Physiology·L P Solomonson, B Vennesland

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Citations

Jun 27, 2019·Biodegradation·Xinyue LvYanping Mao
Sep 19, 2009·Biodegradation·Monserrat ChairezReyes Sierra-Alvarez
Apr 4, 2007·Biotechnology and Bioengineering·Leon S Downing, Robert Nerenberg
Jan 1, 2008·Astrobiology·Jennifer N Smith, Everett L Shock
Dec 21, 2013·Journal of Environmental Health Science & Engineering·Sevgi Demirel, Ibrahim Bayhan
Jul 29, 2020·Frontiers in Plant Science·Myriam Lorena IzarraJan Frederik Kreuze
Nov 6, 2008·Environmental Science & Technology·Cristina T MatosJoão G Crespo
Aug 10, 2021·Environmental Microbiology Reports·Sofía VietoMax Chavarría
Jun 27, 2017·Environmental Science & Technology·Dae Wi Min, Wonyong Choi
Aug 16, 2016·Environmental Science & Technology·Fabian SoltermannUrs von Gunten
Sep 11, 2016·Environmental Science & Technology·Naoko TamaiSeigo Amachi

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