Effect of hydrogen sulfide on growth of sulfate reducing bacteria

Effect of hydrogen sulfide on growth of sulfate reducing bacteria - Biotechnology and BioEngineering, 40(5), p.593-600, 1992 .

A culture of sulfate reducing bacteria (SRB)growing on lactate and sulfate was incubated at different pH values in the range of 5.8-7.0. The effect of pH on growth rate was determined in this pH range; the highest growth rate was observed at pH 6.7. Hydrogen sulfide produced from sulfate reduction was found to have a direct and reversible toxicity effect on the SRB. A hydrogen sulfide concentration of 547 mg/L (16.1 mW)completely inhibited the culture growth. Comparison between acetic acid and hydrogen sulfide inhibition is presented and the concomitant inhibition kinetics are mathematically described. A culture of sulfate reducing bacteria (SRB)growing on lactate and sulfate was incubated at different pH values in the range of 5.8-7.0. The effect of pH on growth rate was determined in this pH range; the highest growth rate was observed at pH 6.7. Hydrogen sulfide produced from sulfate reduction was found to have a direct and reversible toxicity effect on the SRB. A hydrogen sulfide concentration of 547 mg/L (16.1 mM)completely inhibited the culture growth. Comparison between acetic acid and hydrogen sulfide inhibition is presented and the concomitant inhibition kinetics are mathematically described.


GROWTH KINETICS
HYDROGEN SULFIDE
PH EFFECTS