Bactericidal properties of a combined corrosion inhibitor in the presence of SRB
https://doi.org/10.31615/j.corros.prot.2020.97.3-3
Abstract
The bactericidal properties of the combined inhibitor with respect to two types of Desulfovibrio desulfuricans and Desulfomicrobium sulfate-reducing bacteria were studied. The effect of the inhibitor on the number of bacterial cells and the formation of hydrogen sulfide in Postgate nutrient Postgate “B” was evaluated. It has been shown that the combined inhibitor exhibits a bacteriostatic effect on to sulphate-reducing bacteria.
It was revealed that the degree of suppression of the number of microorganisms Desulfovibrio desulfuricans at a concentration of the combined inhibitor 100,0 mg/L is higher than Desulfomicrobium. In the latter case, to achieve this effect, 120,0 mg/L concentration of the combined inhibitor is required.
The studied combination inhibitor causes the inhibition of hydrogen diffusion in steel St3 in the MI medium saturated with H2S and CO2 separately and together, and also contributes to preserving the ductile properties of the steel St3 after exposure to solutions compared to non-inhibited media
About the Author
S. M. Pashaeva
Azerbaijan State University of Oil and Industry
Azerbaijan
Azerbaijan
Saida M. Pashayeva, Doctoral candidate
16/21, Azadliq av., Baku
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Review
For citations:
Pashaeva S.M. Bactericidal properties of a combined corrosion inhibitor in the presence of SRB. Theory and Practice of Corrosion Protection. 2020;25(3):27-37. (In Russ.) https://doi.org/10.31615/j.corros.prot.2020.97.3-3
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