Why should hydrogen sulfide be controlled in sewer systems?

Controlling hydrogen sulfide in sewer systems is crucial primarily because it can lead to severe corrosion of concrete and metal structures within the sewer system. Hydrogen sulfide is a byproduct of anaerobic digestion of organic matter, which can occur in sewer systems, especially in stagnant waters. When this gas is present, it can form sulfuric acid upon contact with moisture, greatly accelerating the deterioration of pipes and other infrastructure.

By managing hydrogen sulfide levels, sewer authorities can prolong the lifespan of the sewer system, reduce maintenance costs, and minimize the potential for leaks or failures that could lead to environmental contamination or health hazards. Therefore, emphasizing corrosion protection directly correlates with maintaining the integrity and functionality of sewer systems.