Significance of Sulphate‐reducing Bacteria to the Gas Industry: A Review

The Dissimilatory Sulfate-Reducing Bacteria

“…It has been repeatedly expressed (Le Gall and Postgate, 1973;Pankhurst, 1968;Postgate, 1965;Roy and Trudinger, 1970;Starkey, 1957) that the extensive promotion of anaerobic iron corrosion by sulfate-reducing bacteria is of considerable economic importance in industry and technology, especially in pipelines, heating systems, and underwater structures. The corrosion is caused by both the utilization of hydrogen present at cathodic iron parts and the simultaneous precipitation of insoluble iron sulfide from dissolved ferrous iron by hydrogen sulfide.…”

Influence of sulphate-reducing bacteria on environmental parameters and marine corrosion behavior of Q235 steel in aerobic conditions

“…The relevant activities of SRB induce the rock-ribbed problem because one of metabolic products, sulphide, is highly corrosive, toxic, and reactive. In accordance with this, SRB cause corrosion of steel, which has led to serious environmental problems and enormous economic losses [2]. SRB generally are recognized as anaerobic microorganisms, but it was recently reported that they can bear oxygen concentrations of up to 1.5 mM using several defense strategies [3].…”

“…Rs: solution resistantce; C dl : capacitance of double layer; R ct(1) : charge transfer resistance without SRB; R ct(2) : charge transfer resistance with SRB; Qcp: capacitance of corrosion product layer; Rcp: resistance of corrosion product layer; Q bf : capacitance of biofilm; R bf : resistance of biofilm.…”

Automated screening of inhibitors of bacterial dissimilatory sulfate reduction

“…Their primary catabolic mode involves the reduction of sulfate to hydrogen sulfide, using electrons generated from the oxidation of molecular hydrogen or organic compounds such as acids or alcohols (Widdel and Pfennig 1984;Widdel 1988). Sulfatereducers are generally regarded as the major agents of microbially influenced corrosion of ferrous metals in anaerobic environments, including microenvironments underneath biofilms and discrete mineral deposits in aerated aqueous systems (Pankhurst 1968;Hamilton 1985;Edyvean 1987). The biological and chemical mechanisms of microbially influenced corrosion are the subject of considerable debate (see Hamilton 1985 for a review).…”

“…The biological and chemical mechanisms of microbially influenced corrosion are the subject of considerable debate (see Hamilton 1985 for a review). Control of sulfate-reducing bacteria in process environments subjected to their corrosive effects (e.g., in petroleum recovery operations or in cooling towers) is usually achieved through the application of non-specific commercial biocides based on compounds such as glutaraldehyde, inorganic chlorines, or quaternary amines (Pankhurst 1968;Hamilton 1985). Such control chemicals, while often effective, are sometimes incompatible with the process environment and are under scrutiny by regulatory agencies due to their highly nonspecific toxicity.…”