Microbiologically Influenced Corrosion (MIC) is a result of many factors, including the formation of biofilms which can cause severe, under-deposit corrosion. This corrosion phenomenon is exacerbated in
the cases where anaerobic conditions exist beneath the biofilm that can lead to the proliferation of sulfate reducing bacteria (SRB's). These SRB's metabolize sulfate to sulfide, which is known to be a strong aggressor against a variety of metals including higher alloy stainless steels.
Glutaraldehyde has a long history of established in-field effectiveness against SRB's and the penetration and removal of biofilms. Described herein are a number of laboratory and field test results that address control of MIC through the use of glutaraldehyde. In addition, a few significant case history examples will be highlighted.