Question

Which of the following anaerobic bacteria that influence the corrosion behavior of buried steel structures?

(a) Sulfur-reducing bacteria

(b) Sulfur-oxidizing bacteria

(c) Thiobacillus thiooxidans

(d) Sulfur-reducing and sulfur-oxidizing bacteria

The question was posed to me in final exam.

I'd like to ask this question from Environments in section Other Environments of Corrosion Engineering

Answer 1

The correct answer is (a) Sulfur-reducing bacteria

Easiest explanation: Sulfur-reducing anaerobic bacteria influences the corrosion behavior of buried steel structures. SO4^-2+4H2==>S^-2+4H2O is the general chemical reaction of sulfur-reducing anaerobic bacteria.