Which of the following is a common biocide used to prevent microbial-induced corrosion?

Glutaraldehyde is a common biocide utilized to prevent microbial-induced corrosion, particularly in water systems and industrial processes. Its effectiveness stems from its ability to penetrate biofilms and inactivate a broad spectrum of microorganisms, including bacteria and fungi. By disrupting the cellular functions of these organisms, glutaraldehyde minimizes their potential to contribute to corrosion processes that can lead to material degradation.

In comparison, while chlorine is often used for disinfection in water treatment, it may not be as effective against biofilms as glutaraldehyde. Hydrogen peroxide is also a strong oxidizing agent that can kill bacteria, but it may not provide the same level of long-term protection against biofouling and corrosion as glutaraldehyde does. Acetic acid, while it can lower pH and inhibit some microbial activity, is not primarily used as a biocide, and its role in corrosion prevention is minimal in contrast to glutaraldehyde.

Overall, glutaraldehyde stands out as a preferred choice among biocides for its comprehensive action against microbes that contribute to corrosion.