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Biotechnol Adv. 2015 Nov 1;33(6 Pt 2):1246-59. doi: 10.1016/j.biotechadv.2015.02.007. Epub 2015 Feb 19.

Sulfur-oxidizing bacteria in environmental technology.

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Department of Water Technology and Environmental Engineering, Faculty of Environmental Technology, University of Chemistry and Technology Prague, Technicka 5, 166 28 Prague 6, Czech Republic.


Hydrogen sulfide is widely known as the most undesirable component of biogas that caused not only serious sensoric and toxic problems, but also corrosion of concrete and steel structures. Many agricultural and industrial waste used in biogas production, may contain a large amount of substances that serve as direct precursors to the formation of sulfide sulfur-sources of hydrogen sulfide in the biogas. Biological desulfurization methods are currently promoted to abiotic methods because they are less expensive and do not produce undesirable materials which must be disposed of. The final products of oxidation of sulfides are no longer hazardous. Biological removal of sulfide from a liquid or gaseous phase is based on the activity of sulfur-oxidizing bacteria. They need an oxidizing agent such as an acceptor of electrons released during the oxidation of sulfides-atmospheric oxygen or oxidized forms of nitrogen. Different genera of sulfur-oxidizing bacteria and their technological application are discussed.


Autotrophic denitrification; Biodesulfurization; Biogas; Hydrogen sulfide; Sulfur-oxidizing bacteria

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