Biogenic sulfide corrosion | Wikipedia audio article
Channel: wikipedia tts
Date: 18/02/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Biogenic_sulfide_corrosion


00:00:54 1 Environment
00:01:35 1.1 Conversion of sulfate SOsub4/subsup2−/sup to hydrogen sulfide Hsub2/subS
00:04:04 1.2 Conversion of hydrogen sulfide to sulfuric acid  Hsub2/subSOsub4/sub
00:05:06 2 Corrosion
00:08:34 3 Prevention
00:10:50 4 See also



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SUMMARY
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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. In the USA alone, corrosion is causing sewer asset losses estimated at
around $14 billion per year. This cost is expected to increase as the aging infrastructure continues to fail.