Biogenic sulfide corrosion is a bacterially mediated process of forming hydrogen sulfide gas and the subsequent conversion to sulfuric acid that attacks concrete and steel within wastewater environments. The hydrogen sulfide gas is biochemically oxidized in the presence of moisture to form sulfuric acid. The effect of sulfuric acid on concrete and steel surfaces exposed to severe wastewater environments can be devastating.[1] In the USA alone, corrosion is causing sewer asset losses estimated at $14 billion per year.[2] This cost is expected to increase as the aging infrastructure continues to fail.[3]
^O’Dea, Vaughn, “Understanding Biogenic Sulfide Corrosion,”MP (November 2007), pp. 36-39.
^Brongers et al., 2002
^Sydney et al., 1996; US EPA, 1991
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acid causing biogenicsulfidecorrosion. Concentration cells can form in the deposits of corrosion products, leading to localized corrosion. Accelerated...
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