What is the consequence of high levels of dissolved oxygen in water systems?

High levels of dissolved oxygen in water systems can indeed have various effects, but one of the more significant concerns is related to corrosion potential. As oxygen is a key reactant in electrochemical reactions, it can enhance the rate of corrosion on metal surfaces within water distribution systems. This is particularly critical in systems that contain iron or steel components, where increased oxygen can accelerate the oxidation processes, leading to faster degradation of pipes and related infrastructure.

While high dissolved oxygen levels can contribute positively to the water’s overall ecological health by supporting aerobic bacteria and aquatic life, they do not directly promote algae growth as suggested. In fact, certain types of algae may thrive in conditions with lower dissolved oxygen due to a beneficial impact on their growth dynamics. Additionally, while bacteria that thrive in anaerobic conditions may be reduced, aerobic bacteria can flourish, which can sometimes lead to increased competition or even beneficial effects on water quality rather than outright reduction of all bacterial populations.

It's important to monitor dissolved oxygen levels in water systems, as balancing these levels is crucial for optimizing water quality while minimizing corrosion risks and maintaining a stable aquatic ecosystem.