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Sulfur Oxidizing Bacteria

With our Sulfur Oxidizing bacteria analysis, bacterial sulfur oxidation is determined in your sample. On request we can give you advice on stimulating, preventing or managing sulfur oxidation in your specific situation.

Analysis essentials

  • To determine the potential for microbial sulfur oxidation
  • To determine the spread of microbial sulfur oxidizing bacteria
  • To monitor the potential for microbial sulfur oxidation in time (does it increase or decrease?)

Content of the package

The following microbial key parameter is detected and quantified with our SOB analysis:

  • A gene specific for sulfur oxidation, thiosulfate oxygenase

NB: many different types of bacteria are known which can metabolize sulfur compounds. However, we analyse the functional potential for bacterial sulfate oxidation instead of all species. This increases the reliability of the results, prevents unnecessary analyses and therefore higher costs.

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Background information

Sulfur oxidizing bacteria (SOB) are used for a variety of applications to reduce the amount of hydrogen sulfide (H2S), e.g. in biogas. An example is the anaerobic treatment of wastewater containing high sulphate levels which causes unwanted H2S production by sulfate reducing bacteria (SRB). Hydrogen sulfide is toxic to plants and animal tissue (with the exception of ruminant animals). It is therefore important to use these specialized bacteria that are capable of oxidizing the sulfide to elemental sulfur.

Sulfur oxidation is the process by which micro-organisms convert hydrogen sulfide (H2S) into elemental sulfur (S0) by partial oxidation, or sulfate (SO42-). Instead of H2S, also other sulfur compounds like thiosulfate (S2O32-) and tetrathionate (S4O62-) can be converted to sulfate. The levels of oxidation are hereby dependent on the oxygen concentration.